diff --git a/web/static/script/3.text b/web/static/script/3.text
deleted file mode 100644
index d28d40b..0000000
--- a/web/static/script/3.text
+++ /dev/null
@@ -1 +0,0 @@
-add
\ No newline at end of file
diff --git a/web/static/script/jquery-1.7.2.js b/web/static/script/jquery-1.7.2.js
index 90768f2..dbb890e 100644
--- a/web/static/script/jquery-1.7.2.js
+++ b/web/static/script/jquery-1.7.2.js
@@ -6852,6 +6852,7 @@
             get: function( elem, computed, extra ) {
                 // 如果 computed 参数为 true
                 if ( computed ) {
+                    // 如果元素的偏移宽度不为 0
                     if ( elem.offsetWidth!== 0 ) {
                         // 调用 getWidthOrHeight 函数获取元素的宽度或高度
                         return getWidthOrHeight( elem, name, extra );
@@ -6922,12206 +6923,2771 @@
         filter.replace( ralpha, opacity ) :
         // 否则将 filter 与 opacity 拼接
         filter + " " + opacity;
-
-    ;
+};
+};
 
 // 当 DOM 加载完成后执行以下函数
-    jQuery(function() {
-        // 这个钩子在 DOM 加载完成后才能添加，因为对其的支持测试在 DOM 加载完成后才运行
-        if (!jQuery.support.reliableMarginRight ) {
-            // 为 jQuery 的 cssHooks 对象添加 marginRight 属性
-            jQuery.cssHooks.marginRight = {
-                // 定义获取元素 marginRight 属性的函数
-                get: function( elem, computed ) {
-                    // WebKit Bug 13343：getComputedStyle 会返回错误的 margin-right 值，通过将元素临时设置为 inline-block 来解决
-                    return jQuery.swap( elem, { "display": "inline-block" }, function() {
-                        // 如果 computed 为 true，使用 curCSS 获取元素的 margin-right 属性
-                        if ( computed ) {
-                            return curCSS( elem, "margin-right" );
-                        } else {
-                            // 否则直接返回元素的 marginRight 样式属性
-                            return elem.style.marginRight;
-                        }
-                    });
-                }
-            };
-        }
-    });
-
-// 如果 jQuery.expr 和 jQuery.expr.filters 存在
-    if ( jQuery.expr && jQuery.expr.filters ) {
-        // 为 jQuery.expr.filters 添加 hidden 过滤器
-        jQuery.expr.filters.hidden = function( elem ) {
-            var width = elem.offsetWidth,
-                height = elem.offsetHeight;
-            // 判断元素是否隐藏，根据元素的宽高是否都为 0 或者显示样式为 none 来判断
-            return ( width === 0 && height === 0 ) || (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
-        };
-        // 为 jQuery.expr.filters 添加 visible 过滤器，它是 hidden 的反义
-        jQuery.expr.filters.visible = function( elem ) {
-            return!jQuery.expr.filters.hidden( elem );
-        };
-    }
-
-// 这些钩子被用于 animate 来扩展属性
-    jQuery.each({
-        margin: "",
-        padding: "",
-        border: "Width"
-    }, function( prefix, suffix ) {
-        // 为 jQuery 的 cssHooks 对象添加属性，属性名为 prefix 与 suffix 组合
-        jQuery.cssHooks[ prefix + suffix ] = {
-            // 定义 expand 函数
-            expand: function( value ) {
-                var i,
-                    // 如果 value 不是字符串，假设它是一个单独的数字，否则将其分割为数组
-                    parts = typeof value === "string"? value.split(" ") : [ value ],
-                    expanded = {};
-                // 遍历 4 次，将值分配给不同的边
-                for ( i = 0; i < 4; i++ ) {
-                    expanded[ prefix + cssExpand[ i ] + suffix ] =
-                        parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-                }
-                // 返回扩展后的对象
-                return expanded;
+jQuery(function() {
+    // 这个钩子在 DOM 加载完成后才能添加，因为对其的支持测试在 DOM 加载完成后才运行
+    if (!jQuery.support.reliableMarginRight ) {
+        // 为 jQuery 的 cssHooks 对象添加 marginRight 属性
+        jQuery.cssHooks.marginRight = {
+            // 定义获取元素 marginRight 属性的函数
+            get: function( elem, computed ) {
+                // WebKit Bug 13343：getComputedStyle 会返回错误的 margin-right 值，通过将元素临时设置为 inline-block 来解决
+                return jQuery.swap( elem, { "display": "inline-block" }, function() {
+                    // 如果 computed 为 true，使用 curCSS 获取元素的 margin-right 属性
+                    if ( computed ) {
+                        return curCSS( elem, "margin-right" );
+                    } else {
+                        // 否则直接返回元素的 marginRight 样式属性
+                        return elem.style.marginRight;
+                    }
+                });
             }
         };
-    });
-
-
-
-// 定义一系列的正则表达式用于解析和处理URL、请求头等信息
-    var r20 = /%20/g, // 匹配URL中的空格字符（%20）
-        rbracket = /\[\]$/, // 匹配以方括号结尾的字符串
-        rCRLF = /\r?\n/g, // 匹配回车符或换行符
-        rhash = /#.*$/, // 匹配井号（#）及其后面的所有字符
-        rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // 匹配请求头，IE会在行尾留下\r字符
-        rinput = /^(?:color|date|datetime|datetime-local|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i, // 匹配输入字段的类型
-        // 匹配本地协议
-        rlocalProtocol = /^(?:about|app|app\-storage|.+\-extension|file|res|widget):$/,
-        rnoContent = /^(?:GET|HEAD)$/, // 匹配无内容请求的HTTP方法
-        rprotocol = /^\/\//, // 匹配协议前的双斜杠
-        rquery = /\?/, // 匹配查询字符串前的问号
-        rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, // 匹配<script>标签
-        rselectTextarea = /^(?:select|textarea)/i, // 匹配select或textarea标签
-        rspacesAjax = /\s+/, // 匹配空格字符
-        rts = /([?&])_=[^&]*/, // 匹配URL中的_=参数
-        rurl = /^([\w\+\.\-]+:)(?:\/\/([^\/?#:]*)(?::(\d+))?)?/, // 匹配URL的协议、域名和端口
-
-        // 保存jQuery的原始load方法
-        _load = jQuery.fn.load,
-
-        /* 预过滤器
-         * 1) 用于引入自定义的数据类型（参见ajax/jsonp.js的例子）
-         * 2) 这些预过滤器在以下时机被调用：
-         *    - 在请求传输之前
-         *    - 在参数序列化之后（如果s.processData为true，s.data是一个字符串）
-         * 3) key是数据类型
-         * 4) 可以使用通配符 "*"
-         * 5) 执行将从传输的数据类型开始，然后如果需要，继续到 "*"
-         */
-        prefilters = {},
-
-        /* 传输绑定
-         * 1) key是数据类型
-         * 2) 可以使用通配符 "*"
-         * 3) 选择将从传输的数据类型开始，然后如果需要，继续到 "*"
-         */
-        transports = {},
-
-        // 文档位置
-        ajaxLocation,
-
-        // 文档位置分段
-        ajaxLocParts,
-
-        // 避免注释-序言字符序列（#10098）；必须满足lint要求并避开压缩
-        allTypes = ["*/"] + ["*"];
-
-// #8138，IE在访问设置了document.domain的window.location的字段时可能会抛出异常
-    try {
-        ajaxLocation = location.href; // 尝试获取当前页面的URL
-    } catch( e ) {
-        // 使用A元素的href属性，因为IE会修改设置了document.location的URL
-        ajaxLocation = document.createElement( "a" ); // 创建一个A元素
-        ajaxLocation.href = ""; // 设置href为空字符串
-        ajaxLocation = ajaxLocation.href; // 获取处理后的href，即当前页面的URL
     }
+});
 
-// 将位置分割成部分
-    ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || []; // 使用正则表达式匹配并分割URL
-
-// jQuery.ajaxPrefilter和jQuery.ajaxTransport的基础“构造函数”
-    function addToPrefiltersOrTransports( structure ) {
-
-        // dataTypeExpression是可选的，默认为 "*"
-        return function( dataTypeExpression, func ) {
+// 如果 jQuery.expr 和 jQuery.expr.filters 存在
+if ( jQuery.expr && jQuery.expr.filters ) {
+    // 为 jQuery.expr.filters 添加 hidden 过滤器
+    jQuery.expr.filters.hidden = function( elem ) {
+        var width = elem.offsetWidth,
+            height = elem.offsetHeight;
+        // 判断元素是否隐藏，根据元素的宽高是否都为 0 或者显示样式为 none 来判断
+        return ( width === 0 && height === 0 ) || (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
+    };
+    // 为 jQuery.expr.filters 添加 visible 过滤器，它是 hidden 的反义
+    jQuery.expr.filters.visible = function( elem ) {
+        return!jQuery.expr.filters.hidden( elem );
+    };
+}
 
-            if ( typeof dataTypeExpression !== "string" ) {
-                func = dataTypeExpression; // 如果dataTypeExpression不是字符串，则将其视为函数
-                dataTypeExpression = "*"; // 将dataTypeExpression设置为通配符
-            }
+// 这些钩子被用于 animate 来扩展属性
+jQuery.each({
+    margin: "",
+    padding: "",
+    border: "Width"
+}, function( prefix, suffix ) {
+    // 为 jQuery 的 cssHooks 对象添加属性，属性名为 prefix 与 suffix 组合
+    jQuery.cssHooks[ prefix + suffix ] = {
+        // 定义 expand 函数
+        expand: function( value ) {
+            var i,
+                // 如果 value 不是字符串，假设它是一个单独的数字，否则将其分割为数组
+                parts = typeof value === "string"? value.split(" ") : [ value ],
+                expanded = {};
+            // 遍历 4 次，将值分配给不同的边
+            for ( i = 0; i < 4; i++ ) {
+                expanded[ prefix + cssExpand[ i ] + suffix ] =
+                    parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+            }
+            // 返回扩展后的对象
+            return expanded;
+        }
+    };
+});
+
+
+
+// 定义一个全局变量 r20，用于匹配全局的 %20 字符串
+var r20 = /%20/g,
+    // 定义一个全局变量 rbracket，用于匹配以 [] 结尾的字符串
+    rbracket = /\[\]$/,
+    // 定义一个全局变量 rCRLF，用于匹配回车符和换行符（可能包含或不包含回车符）
+    rCRLF = /\r?\n/g,
+    // 定义一个全局变量 rhash，用于匹配以 # 开始并包含其后所有内容的字符串
+    rhash = /#.*$/,
+    // 定义一个全局变量 rheaders，用于匹配 HTTP 头信息格式，包括头名称和头值，IE 会在行尾留下一个 \r 字符
+    rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg,
+    // 定义一个全局变量 rinput，用于匹配特定的输入类型（如文本、日期、密码等），不区分大小写
+    rinput = /^(?:color|date|datetime|datetime-local|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
+    // 用于检测本地协议的正则表达式，包括 about、app 等
+    rlocalProtocol = /^(?:about|app|app\-storage|.+\-extension|file|res|widget):$/,
+    // 定义一个全局变量 rnoContent，用于匹配 GET 或 HEAD 请求
+    rnoContent = /^(?:GET|HEAD)$/,
+    // 定义一个全局变量 rprotocol，用于匹配以 // 开始的字符串
+    rprotocol = /^\/\//,
+    // 定义一个全局变量 rquery，用于匹配问号字符
+    rquery = /\?/,
+    // 定义一个全局变量 rscript，用于匹配 <script> 标签及其内容，不区分大小写
+    rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
+    // 定义一个全局变量 rselectTextarea，用于匹配 select 或 textarea 元素，不区分大小写
+    rselectTextarea = /^(?:select|textarea)/i,
+    // 定义一个全局变量 rspacesAjax，用于匹配一个或多个空格字符
+    rspacesAjax = /\s+/,
+    // 定义一个全局变量 rts，用于匹配包含 _= 的查询参数
+    rts = /([?&])_=[^&]*/,
+    // 定义一个全局变量 rurl，用于解析 URL，包括协议、域名、端口等部分
+    rurl = /^([\w\+\.\-]+:)(?:\/\/([^\/?#:]*)(?::(\d+))?)?/,
+
+    // 保存 jQuery.fn.load 方法的原始引用
+    _load = jQuery.fn.load,
+
+    /* Prefilters
+     * 1) 它们可用于引入自定义数据类型（可参考 ajax/jsonp.js 中的示例）
+     * 2) 它们的调用时机：
+     *    - 在请求传输之前
+     *    - 在参数序列化之后（如果 s.processData 为 true，s.data 是一个字符串）
+     * 3) key 是数据类型
+     * 4) 可以使用通配符 "*"
+     * 5) 执行将从传输的数据类型开始，如果需要，继续向下执行到 "*"
+     */
+    prefilters = {},
+
+    /* Transports bindings
+     * 1) key 是数据类型
+     * 2) 可以使用通配符 "*"
+     * 3) 选择将从传输的数据类型开始，如果需要，继续到 "*"
+     */
+    transports = {},
+
+    // 存储文档的位置
+    ajaxLocation,
+    // 存储文档位置的各个部分
+    ajaxLocParts,
+    // 避免注释序言字符序列（#10098）；必须满足代码检查工具的要求并避免压缩问题
+    allTypes = ["*/"] + ["*"];
+
+// #8138，IE 可能在访问 window.location 的字段时抛出异常，如果 document.domain 已被设置
+try {
+    // 尝试获取当前页面的 URL
+    ajaxLocation = location.href;
+} catch( e ) {
+    // 使用一个 A 元素的 href 属性，因为 IE 会根据 document.location 修改它
+    ajaxLocation = document.createElement( "a" );
+    ajaxLocation.href = "";
+    ajaxLocation = ajaxLocation.href;
+}
+
+// 使用 rurl 正则表达式将 ajaxLocation 解析为各个部分，如果无法解析则返回空数组
+ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
+
+// 为 jQuery.ajaxPrefilter 和 jQuery.ajaxTransport 提供的基础“构造函数”
+function addToPrefiltersOrTransports( structure ) {
+    // dataTypeExpression 是可选的，默认值为 "*"
+    return function( dataTypeExpression, func ) {
+        // 如果 dataTypeExpression 不是字符串
+        if ( typeof dataTypeExpression!== "string" ) {
+            func = dataTypeExpression;
+            dataTypeExpression = "*";
+        }
 
-            if ( jQuery.isFunction( func ) ) { // 如果func是函数
-                var dataTypes = dataTypeExpression.toLowerCase().split( rspacesAjax ), // 将dataTypeExpression分割成数组
-                    i = 0,
-                    length = dataTypes.length,
-                    dataType,
-                    list,
-                    placeBefore;
+        // 如果 func 是一个函数
+        if ( jQuery.isFunction( func ) ) {
+            // 将 dataTypeExpression 按空格分割为多个数据类型并存储在 dataTypes 数组中
+            var dataTypes = dataTypeExpression.toLowerCase().split( rspacesAjax ),
+                i = 0,
+                // 获取 dataTypes 数组的长度
+                length = dataTypes.length,
+                dataType,
+                list,
+                placeBefore;
 
-                // 遍历dataTypeExpression中的每个数据类型
-                for ( ; i < length; i++ ) {
-                    dataType = dataTypes[ i ]; // 获取当前数据类型
-                    // 我们控制是否要求添加到现有元素的前面
-                    placeBefore = /^\+/.test( dataType ); // 检查数据类型是否以"+"开头
-                    if ( placeBefore ) {
-                        dataType = dataType.substr( 1 ) || "*"; // 如果以"+"开头，则去掉"+"并设置为通配符（如果为空）
-                    }
-                    list = structure[ dataType ] = structure[ dataType ] || []; // 获取或初始化该数据类型的列表
-                    // 然后我们根据placeBefore的值将函数添加到列表的开头或末尾
-                    list[ placeBefore ? "unshift" : "push" ]( func ); // 使用unshift或push方法添加函数
-                }
+            // 遍历 dataTypes 数组中的每个数据类型
+            for ( ; i < length; i++ ) {
+                dataType = dataTypes[ i ];
+                // 检查是否需要将 func 放在现有元素之前
+                placeBefore = /^\+/.test( dataType );
+                if ( placeBefore ) {
+                    // 去掉开头的 + 号，如果没有数据类型则使用 "*"
+                    dataType = dataType.substr( 1 ) || "*";
+                }
+                // 获取或创建结构中该数据类型的列表
+                list = structure[ dataType ] = structure[ dataType ] || [];
+                // 根据 placeBefore 的结果，将 func 插入到列表的头部或尾部
+                list[ placeBefore? "unshift" : "push" ]( func );
             }
-        };
-    }
-
-// 预过滤器和传输的基础检查函数
-    function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR,
-                                            dataType /* 内部使用 */, inspected /* 内部使用 */ ) {
-
-        dataType = dataType || options.dataTypes[ 0 ]; // 获取dataType，如果没有提供，则使用options.dataTypes的第一个元素
-        inspected = inspected || {}; // 初始化或获取inspected对象
-
-        inspected[ dataType ] = true; // 标记当前dataType已被检查
-
-        var list = structure[ dataType ], // 获取当前dataType的列表
-            i = 0,
-            length = list ? list.length : 0, // 获取列表的长度（如果列表存在）
-            executeOnly = ( structure === prefilters ), // 检查是否是预过滤器
-            selection;
-
-        // 遍历列表，直到找到执行结果或遍历完所有元素
-        for ( ; i < length && ( executeOnly || !selection ); i++ ) {
-            selection = list[ i ]( options, originalOptions, jqXHR ); // 调用列表中的函数
-            // 如果我们被重定向到另一个dataType
-            // 并且我们只是在执行（预过滤器）且尚未完成
-            if ( typeof selection === "string" ) {
-                if ( !executeOnly || inspected[ selection ] ) {
-                    selection = undefined; // 如果不是预过滤器或者已经检查过这个dataType，则重置selection
-                } else {
-                    options.dataTypes.unshift( selection ); // 将新的dataType添加到options.dataTypes的开头
-                    selection = inspectPrefiltersOrTransports(
-                        structure, options, originalOptions, jqXHR, selection, inspected ); // 递归检查新的dataType
-                }
+        }
+    };
+}
+
+// Base inspection function for prefilters and transports
+// 用于检查预过滤器或传输器的函数
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR,
+                                        dataType /* internal */, inspected /* internal */ ) {
+    // 如果未提供 dataType，则使用 options.dataTypes 的第一个元素作为 dataType
+    dataType = dataType || options.dataTypes[ 0 ];
+    // 如果未提供 inspected，则创建一个新的 inspected 对象
+    inspected = inspected || {};
+    // 将当前 dataType 标记为已检查
+    inspected[ dataType ] = true;
+    // 获取 structure 中当前 dataType 对应的列表
+    var list = structure[ dataType ],
+        i = 0,
+        // 获取列表的长度，如果列表不存在则为 0
+        length = list? list.length : 0,
+        // 表示是否仅执行操作，根据 structure 是否为 prefilters 来判断
+        executeOnly = ( structure === prefilters ),
+        selection;
+    // 遍历列表中的元素
+    for ( ; i < length && ( executeOnly ||!selection ); i++ ) {
+        // 调用列表中的函数并存储结果
+        selection = list[ i ]( options, originalOptions, jqXHR );
+        // 如果结果是一个字符串（表示重定向到另一个 dataType）
+        if ( typeof selection === "string" ) {
+            // 如果仅执行操作且已经检查过该 dataType，将 selection 设为 undefined
+            if (!executeOnly || inspected[ selection ] ) {
+                selection = undefined;
+            } else {
+                // 否则将新的 dataType 加入 options.dataTypes 的头部
+                options.dataTypes.unshift( selection );
+                // 递归调用 inspectPrefiltersOrTransports 函数
+                selection = inspectPrefiltersOrTransports(
+                    structure, options, originalOptions, jqXHR, selection, inspected );
             }
         }
-        // 如果我们只是在执行或者没有找到选择
-        // 我们尝试catchall dataType（如果没有检查过）
-        if ( ( executeOnly || !selection ) && !inspected[ "*" ] ) {
-            selection = inspectPrefiltersOrTransports(
-                structure, options, originalOptions, jqXHR, "*", inspected ); // 检查catchall dataType
+    }
+    // 如果仅执行操作或没有选择，并且未检查过通配符 "*"
+    if ( ( executeOnly ||!selection ) &&!inspected[ "*" ] ) {
+        // 对通配符 "*" 调用 inspectPrefiltersOrTransports 函数
+        selection = inspectPrefiltersOrTransports(
+            structure, options, originalOptions, jqXHR, "*", inspected );
+    }
+    // 当仅执行操作时此返回值不必要（对于预过滤器），但调用者会忽略它
+    return selection;
+}
+
+// 一个特殊的 jQuery 扩展函数，用于 AJAX 选项，它只接受 "扁平" 选项（不进行深度扩展），解决 #9887 问题
+function ajaxExtend( target, src ) {
+    var key, deep,
+        // 获取 jQuery.ajaxSettings 中的 flatOptions 或一个空对象
+        flatOptions = jQuery.ajaxSettings.flatOptions || {};
+    // 遍历 src 对象的键
+    for ( key in src ) {
+        // 如果 src[key] 不为 undefined
+        if ( src[ key ]!== undefined ) {
+            // 根据 flatOptions 决定是否使用深度扩展
+            ( flatOptions[ key ]? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
         }
-        // 当只是执行预过滤器时，这个返回是不必要的
-        // 但调用者会在那种情况下忽略它
-        return selection;
     }
+    // 如果需要深度扩展，使用 jQuery.extend 进行深度扩展
+    if ( deep ) {
+        jQuery.extend( true, target, deep );
+    }
+}
 
-// 一个特殊的扩展函数，用于ajax选项
-// 它接受“flat”选项（不进行深度扩展）
-// 修复 #9887
-    function ajaxExtend( target, src ) {
-        var key, deep,
-            flatOptions = jQuery.ajaxSettings.flatOptions || {}; // 获取flatOptions对象
-        for ( key in src ) { // 遍历src对象
-            if ( src[ key ] !== undefined ) { // 如果src[key]存在
-                ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; // 根据flatOptions的值将src[key]添加到target或deep对象中
-            }
+// 扩展 jQuery.fn 对象
+jQuery.fn.extend({
+    // load 方法的实现
+    load: function( url, params, callback ) {
+        // 如果 url 不是字符串且 _load 存在，调用 _load 方法
+        if ( typeof url!== "string" && _load ) {
+            return _load.apply( this, arguments );
         }
-        if ( deep ) { // 如果存在deep对象
-            jQuery.extend( true, target, deep );//deep对象的内容合并到targe 使用深度扩展将t对象中
+        // 如果没有元素请求，直接返回 jQuery 对象
+        else if (!this.length ) {
+            return this;
         }
-    }
-
-// 扩展jQuery的原型，添加新的方法
-    jQuery.fn.extend({
-        // 定义一个load方法，用于加载远程HTML到匹配的元素中
-        load: function( url, params, callback ) {
-            // 如果url不是字符串且存在_load方法（可能是旧版本的jQuery load方法），则调用_load
-            if ( typeof url !== "string" && _load ) {
-                return _load.apply( this, arguments );
-
-                // 如果没有匹配的元素，则不进行请求
-            } else if ( !this.length ) {
-                return this;
-            }
-
-            // 检查url中是否包含空格，通常空格后面是选择器
-            var off = url.indexOf( " " );
-            if ( off >= 0 ) {
-                var selector = url.slice( off, url.length ); // 提取选择器部分
-                url = url.slice( 0, off ); // 提取URL部分
+        // 查找 url 中第一个空格的位置
+        var off = url.indexOf( " " );
+        if ( off >= 0 ) {
+            // 提取选择器和 url
+            var selector = url.slice( off, url.length );
+            url = url.slice( 0, off );
+        }
+        // 默认使用 GET 请求
+        var type = "GET";
+        // 如果提供了第二个参数
+        if ( params ) {
+            // 如果是函数，将其作为回调函数
+            if ( jQuery.isFunction( params ) ) {
+                callback = params;
+                params = undefined;
+            }
+            // 如果是对象，将其转换为参数字符串并使用 POST 请求
+            else if ( typeof params === "object" ) {
+                params = jQuery.param( params, jQuery.ajaxSettings.traditional );
+                type = "POST";
             }
-
-            // 默认请求方式为GET
-            var type = "GET";
-
-            // 如果提供了第二个参数
-            if ( params ) {
-                // 如果第二个参数是函数，则认为是回调函数
-                if ( jQuery.isFunction( params ) ) {
-                    callback = params; // 将回调函数赋值给callback
-                    params = undefined; // 将params设置为undefined
-
-                    // 如果第二个参数是对象，则构建参数字符串，并将请求方式设置为POST
-                } else if ( typeof params === "object" ) {
-                    params = jQuery.param( params, jQuery.ajaxSettings.traditional ); // 使用jQuery.param序列化对象
-                    type = "POST"; // 设置请求方式为POST
+        }
+        var self = this;
+        // 发起 AJAX 请求
+        jQuery.ajax({
+            url: url,
+            type: type,
+            dataType: "html",
+            data: params,
+            // 完成回调函数
+            complete: function( jqXHR, status, responseText ) {
+                // 存储 jqXHR 对象的响应文本
+                responseText = jqXHR.responseText;
+                // 如果请求成功
+                if ( jqXHR.isResolved() ) {
+                    // 如果存在数据过滤器，获取实际的响应
+                    jqXHR.done(function( r ) {
+                        responseText = r;
+                    });
+                    // 如果指定了选择器
+                    self.html( selector?
+                        // 创建一个临时 div 元素，将响应文本添加进去并移除脚本元素
+                        jQuery("<div>")
+                            .append(responseText.replace(rscript, ""))
+                            // 查找选择器匹配的元素
+                            .find(selector) :
+                        // 否则直接将响应文本添加进去
+                        responseText );
                 }
-            }
-
-            var self = this; // 保存当前jQuery对象的引用
-
-            // 使用jQuery.ajax发起请求
-            jQuery.ajax({
-                url: url, // 请求的URL
-                type: type, // 请求方式
-                dataType: "html", // 预期服务器返回的数据类型
-                data: params, // 发送到服务器的数据
-                // 完整回调函数，无论请求成功或失败都会执行
-                complete: function( jqXHR, status, responseText ) {
-                    // 使用jqXHR对象的responseText属性
-                    responseText = jqXHR.responseText;
-                    // 如果请求成功，将HTML内容注入到匹配的元素中
-                    if ( jqXHR.isResolved() ) {
-                        // 处理可能存在的dataFilter
-                        jqXHR.done(function( r ) {
-                            responseText = r;
-                        });
-                        // 如果指定了选择器，则只注入选择器匹配的HTML
-                        self.html( selector ?
-                            // 创建一个临时div容器，并移除脚本标签以避免IE的权限错误
-                            jQuery("<div>")
-                                .append(responseText.replace(rscript, "")) // 移除脚本标签
-                                .find(selector) : // 查找选择器匹配的元素
-
-                            // 如果没有指定选择器，则直接注入整个响应内容
-                            responseText );
-                    }
-
-                    // 如果提供了回调函数，则对每个匹配的元素执行回调
-                    if ( callback ) {
-                        self.each( callback, [ responseText, status, jqXHR ] );
-                    }
+                // 如果有回调函数，对每个元素调用回调函数
+                if ( callback ) {
+                    self.each( callback, [ responseText, status, jqXHR ] );
                 }
-            });
-
-            return this; // 支持链式调用
-        },
-
-        // serialize方法，将表单元素序列化成一个URL编码的字符串
-        serialize: function() {
-            return jQuery.param( this.serializeArray() ); // 使用jQuery.param将数组序列化为字符串
-        },
-
-        // serializeArray方法，将表单元素序列化成一个数组
-        serializeArray: function() {
-            return this.map(function(){
-                // 如果当前元素有elements属性（通常是表单元素），则返回其elements数组，否则返回当前元素自身
-                return this.elements ? jQuery.makeArray( this.elements ) : this;
+            }
+        });
+        // 返回 jQuery 对象
+        return this;
+    },
+    // 序列化方法，将表单元素序列化为参数字符串
+    serialize: function() {
+        return jQuery.param( this.serializeArray() );
+    },
+    // 序列化数组方法，将表单元素转换为数组
+    serializeArray: function() {
+        return this.map(function(){
+            // 如果元素有 elements 属性，将其转换为数组，否则直接使用元素本身
+            return this.elements? jQuery.makeArray( this.elements ) : this;
+        })
+            .filter(function(){
+                // 过滤出有名称、未禁用且满足一定条件的元素
+                return this.name &&!this.disabled &&
+                    ( this.checked || rselectTextarea.test( this.nodeName ) ||
+                        rinput.test( this.type ) );
             })
-                .filter(function(){
-                    // 过滤掉没有name属性、被禁用的元素、以及未选中的复选框/单选按钮，除非它们是textarea或input元素
-                    return this.name && !this.disabled &&
-                        ( this.checked || rselectTextarea.test( this.nodeName ) ||
-                            rinput.test( this.type ) );
-                })
-                .map(function( i, elem ){
-                    var val = jQuery( this ).val(); // 获取元素的值
-
-                    return val == null ?
-                        null : // 如果值为null，则返回null
-                        jQuery.isArray( val ) ? // 如果值是数组
-                            jQuery.map( val, function( val, i ){
-                                // 对数组中的每个值，返回一个对象，包含name和value属性
-                                return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-                            }) :
-                            { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; // 如果值不是数组，则直接返回一个对象
-                }).get(); // 转换为真正的数组
+            .map(function( i, elem ){
+                var val = jQuery( this ).val();
+                // 处理元素的值，替换 CRLF 并构建对象
+                return val == null?
+                    null :
+                    jQuery.isArray( val )?
+                        jQuery.map( val, function( val, i ){
+                            return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+                        }) :
+                        { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+            }).get();
+    }
+});
+
+jQuery.extend({
+    // 定义 getScript 方法，用于加载并执行 JavaScript 脚本
+    getScript: function( url, callback ) {
+        // 使用 jQuery.get 方法请求 url，将回调函数作为第三个参数，数据类型为 "script"
+        return jQuery.get( url, undefined, callback, "script" );
+    },
+    // 定义 getJSON 方法，用于获取 JSON 数据
+    getJSON: function( url, data, callback ) {
+        // 使用 jQuery.get 方法请求 url，将数据作为第二个参数，回调函数作为第三个参数，数据类型为 "json"
+        return jQuery.get( url, data, callback, "json" );
+    },
+    // 创建一个完整的设置对象，包含 ajaxSettings 和 settings 字段，如果 target 未提供，则写入 ajaxSettings
+    ajaxSetup: function( target, settings ) {
+        if ( settings ) {
+            // 构建一个设置对象，将 jQuery.ajaxSettings 扩展到 target 中
+            ajaxExtend( target, jQuery.ajaxSettings );
+        } else {
+            // 如果没有提供 settings，将 target 作为 settings，并将 jQuery.ajaxSettings 作为 target
+            settings = target;
+            target = jQuery.ajaxSettings;
         }
-    });
-
-// 转换为真正的数组
-    jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split( " " ), function( i, o ){
-        jQuery.fn[ o ] = function( f ){
-            // 使用.on()方法绑定对应的事件
-            return this.on( o, f );
-        };
-    });
-
-    jQuery.each( [ "get", "post" ], function( i, method ) { // 对["get", "post"]数组进行遍历，为每个方法创建一个jQuery全局函数
-        jQuery[ method ] = function( url, data, callback, type ) { // 为jQuery对象添加get和post方法
-            // shift arguments if data argument was omitted
-            if ( jQuery.isFunction( data ) ) { // 如果data参数被省略或者是一个函数，则调整参数位置
-                type = type || callback; // 如果没有指定type，则将callback赋值给type
-                callback = data; // 将data（实际是回调函数）赋值给callback
-                data = undefined; // 将data设置为undefined
-            }
-
-            return jQuery.ajax({ // 调用jQuery的ajax方法发送请求
-                type: method, // 请求类型（get或post）
-                url: url, // 请求的URL
-                data: data, // 发送的数据
-                success: callback, // 请求成功时的回调函数
-                dataType: type // 预期服务器返回的数据类型
-            });
-        };
-    });
-
-    jQuery.extend({ // 扩展jQuery对象
-
-        getScript: function( url, callback ) { // 定义一个用于加载和执行JavaScript文件的方法
-            return jQuery.get( url, undefined, callback, "script" ); // 使用jQuery.get方法，指定返回数据类型为script
+        // 将 settings 扩展到 target 中
+        ajaxExtend( target, settings );
+        return target;
+    },
+    ajaxSettings: {
+        // 默认的请求 URL，使用之前获取的 ajaxLocation
+        url: ajaxLocation,
+        // 判断是否为本地请求，使用 rlocalProtocol 正则表达式对 ajaxLocParts[1] 进行测试
+        isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
+        // 是否触发全局事件
+        global: true,
+        // 默认请求类型为 GET
+        type: "GET",
+        // 默认的内容类型
+        contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+        // 是否处理数据
+        processData: true,
+        // 是否异步请求
+        async: true,
+        /*
+        timeout: 0,
+        data: null,
+        dataType: null,
+        username: null,
+        password: null,
+        cache: null,
+        traditional: false,
+        headers: {},
+        */
+        // 可接受的数据类型及其对应的 MIME 类型
+        accepts: {
+            xml: "application/xml, text/xml",
+            html: "text/html",
+            text: "text/plain",
+            json: "application/json, text/javascript",
+            "*": allTypes
         },
-
-        getJSON: function( url, data, callback ) { // 定义一个用于加载JSON格式数据的方法
-            return jQuery.get( url, data, callback, "json" ); // 使用jQuery.get方法，指定返回数据类型为json
+        // 内容类型的匹配正则表达式
+        contents: {
+            xml: /xml/,
+            html: /html/,
+            json: /json/
         },
-
-        // Creates a full fledged settings object into target
-        // with both ajaxSettings and settings fields.
-        // If target is omitted, writes into ajaxSettings.
-        ajaxSetup: function( target, settings ) { // 定义一个用于设置全局Ajax默认选项的方法
-            if ( settings ) { // 如果提供了settings参数
-                // Building a settings object
-                ajaxExtend( target, jQuery.ajaxSettings ); // 将jQuery.ajaxSettings复制到target中
-            } else { // 如果没有提供settings参数，则target即为要设置的选项
-                // Extending ajaxSettings
-                settings = target; // 将target赋值给settings
-                target = jQuery.ajaxSettings; // 将target设置为jQuery.ajaxSettings
-            }
-            ajaxExtend( target, settings ); // 将settings中的选项合并到target中
-            return target; // 返回合并后的对象
+        // 响应字段的映射
+        responseFields: {
+            xml: "responseXML",
+            text: "responseText"
         },
-
-        ajaxSettings: { // 定义Ajax的全局默认设置
-            url: ajaxLocation, // 当前页面的URL
-            isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ), // 判断请求是否为本地请求
-            global: true, // 是否触发全局Ajax事件
-            type: "GET", // 请求的默认类型
-            contentType: "application/x-www-form-urlencoded; charset=UTF-8", // 发送信息至服务器时内容编码类型
-            processData: true, // 是否将发送的数据转换为查询字符串
-            async: true, // 是否异步执行
-            /*
-            timeout: 0,
-            data: null,
-            dataType: null,
-            username: null,
-            password: null,
-            cache: null,
-            traditional: false,
-            headers: {},
-            */
-
-            accepts: { // 可接受的返回数据类型
-                xml: "application/xml, text/xml",
-                html: "text/html",
-                text: "text/plain",
-                json: "application/json, text/javascript",
-                "*": allTypes // 匹配所有数据类型
-            },
-
-            contents: { // 根据响应的MIME类型判断响应的数据类型
-                xml: /xml/,
-                html: /html/,
-                json: /json/
-            },
-
-            responseFields: { // 响应数据字段的映射
-                xml: "responseXML",
-                text: "responseText"
-            },
-
-            // List of data converters
-            // 1) key format is "source_type destination_type" (a single space in-between)
-            // 2) the catchall symbol "*" can be used for source_type
-            converters: { // 数据转换器
-                // Convert anything to text
-                "* text": window.String, // 将任何数据类型转换为文本
-
-                // Text to html (true = no transformation)
-                "text html": true, // 将文本转换为HTML（不进行转换）
-
-                // Evaluate text as a json expression
-                "text json": jQuery.parseJSON, // 将文本解析为JSON对象
-
-                // Parse text as xml
-                "text xml": jQuery.parseXML // 将文本解析为XML文档
-            },
-
-            // For options that shouldn't be deep extended:
-            // you can add your own custom options here if
-            // and when you create one that shouldn't be
-            // deep extended (see ajaxExtend)
-            flatOptions: { // 不应该被深度扩展的选项
-                context: true, // 上下文对象
-                url: true // 请求的URL
-            }
+        // 数据转换器列表
+        // 1) 键的格式为 "source_type destination_type"（中间有一个空格）
+        // 2) 可以使用通配符 "*" 作为 source_type
+        converters: {
+            // 将任何类型转换为文本
+            "* text": window.String,
+            // 文本到 HTML（true 表示不转换）
+            "text html": true,
+            // 将文本解析为 JSON 表达式
+            "text json": jQuery.parseJSON,
+            // 将文本解析为 XML
+            "text xml": jQuery.parseXML
         },
-        ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), // 为ajax请求添加预过滤器
-        ajaxTransport: addToPrefiltersOrTransports( transports ), // 为ajax请求添加传输器
-
-        // 主方法
-        ajax: function( url, options ) {
-
-            // 如果url是一个对象，模拟1.5版本之前的签名
-            if ( typeof url === "object" ) {
-                options = url; // 将url对象作为options
-                url = undefined; // url未定义
-            }
-
-            // 强制options为对象
-            options = options || {}; // 确保options为对象，若未提供则使用空对象
-
-            var // 创建最终的选项对象
-                s = jQuery.ajaxSetup( {}, options ), // 使用ajaxSetup方法合并全局设置和提供的选项
-                // 回调上下文
-                callbackContext = s.context || s, // 使用提供的上下文或s作为回调上下文
-                // 全局事件上下文
-                // 如果提供的上下文是一个DOM节点或jQuery集合，则为该上下文
-                // 否则为jQuery的事件对象
-                globalEventContext = callbackContext !== s &&
-                ( callbackContext.nodeType || callbackContext instanceof jQuery ) ?
-                    jQuery( callbackContext ) : jQuery.event,
-                // Deferred对象
-                deferred = jQuery.Deferred(), // 创建一个Deferred对象用于处理异步操作
-                completeDeferred = jQuery.Callbacks( "once memory" ), // 创建一个回调列表，只执行一次且保留记忆
-                // 状态依赖的回调
-                statusCode = s.statusCode || {}, // 获取状态码回调
-                // ifModified键
-                ifModifiedKey,
-                // Headers（它们一次性发送）
-                requestHeaders = {}, // 用于存储请求头的对象
-                requestHeadersNames = {}, // 用于存储请求头名称（小写）的对象
-                // 响应头
-                responseHeadersString, // 存储响应头的字符串
-                responseHeaders, // 解析后的响应头对象
-                // 传输器
-                transport,
-                // 超时处理器
-                timeoutTimer,
-                // 跨域检测变量
-                parts,
-                // jqXHR的状态
-                state = 0, // 初始化状态为0（未初始化）
-                // 判断是否要分发全局事件
-                fireGlobals,
-                // 循环变量
-                i,
-                // 伪造的xhr对象
-                jqXHR = {
-
-                    readyState: 0, // 初始化就绪状态为0（未初始化）
-
-                    // 设置请求头，如果状态未初始化
-                    setRequestHeader: function( name, value ) {
-                        if ( !state ) { // 如果状态未初始化
-                            var lname = name.toLowerCase(); // 将名称转换为小写
-                            name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name; // 获取或设置小写名称
-                            requestHeaders[ name ] = value; // 设置请求头
-                        }
-                        return this; // 返回jqXHR对象以便链式调用
-                    },
-
-                    // 获取所有响应头（原始字符串）
-                    getAllResponseHeaders: function() {
-                        return state === 2 ? responseHeadersString : null; // 如果状态为2（已加载），则返回响应头字符串，否则返回null
-                    },
-
-                    // 如果需要，构建响应头哈希表
-                    getResponseHeader: function( key ) {
-                        var match; // 匹配结果
-                        if ( state === 2 ) { // 如果状态为2（已加载）
-                            if ( !responseHeaders ) { // 如果响应头对象未创建
-                                responseHeaders = {}; // 初始化响应头对象
-                                while( ( match = rheaders.exec( responseHeadersString ) ) ) { // 使用正则表达式解析响应头字符串
-                                    responseHeaders[ match[1].toLowerCase() ] = match[ 2 ]; // 将解析的响应头添加到对象中
-                                }
-                            }
-                            match = responseHeaders[ key.toLowerCase() ]; // 获取指定响应头的值
-                        }
-                        return match === undefined ? null : match; // 如果找到则返回值，否则返回null
-                    },
-
-                    // 重写响应内容类型头
-                    overrideMimeType: function( type ) {
-                        if ( !state ) { // 如果状态未初始化
-                            s.mimeType = type; // 设置mimeType
-                        }
-                        return this; // 返回jqXHR对象以便链式调用
-                    },
-
-                    // 取消请求
-                    abort: function( statusText ) {
-                        statusText = statusText || "abort"; // 设置默认的状态文本为"abort"
-                        if ( transport ) { // 如果存在传输器
-                            transport.abort( statusText ); // 调用传输器的abort方法取消请求
-                        }
-                        done( 0, statusText ); // 调用done方法处理取消请求的逻辑
-                        return this; // 返回jqXHR对象
-                    }
-                };
-
-            // Callback for when everything is done
-            // It is defined here because jslint complains if it is declared
-            // at the end of the function (which would be more logical and readable)
-            function done( status, nativeStatusText, responses, headers ) {
-
-                // Called once
-                if ( state === 2 ) {
-                    return;
-                }
-
-                // State is "done" now
-                state = 2;
-
-                // Clear timeout if it exists
-                if ( timeoutTimer ) {
-                    clearTimeout( timeoutTimer );
-                }
-
-                // Dereference transport for early garbage collection
-                // (no matter how long the jqXHR object will be used)
-                transport = undefined;
-
-                // Cache response headers
-                responseHeadersString = headers || "";
-
-                // Set readyState
-                jqXHR.readyState = status > 0 ? 4 : 0;
-
-                var isSuccess,
-                    success,
-                    error,
-                    statusText = nativeStatusText,
-                    response = responses ? ajaxHandleResponses( s, jqXHR, responses ) : undefined,
-                    lastModified,
-                    etag;
-
-                // If successful, handle type chaining
-                if ( status >= 200 && status < 300 || status === 304 ) {
-
-                    // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-                    if ( s.ifModified ) {
-
-                        if ( ( lastModified = jqXHR.getResponseHeader( "Last-Modified" ) ) ) {
-                            jQuery.lastModified[ ifModifiedKey ] = lastModified;
-                        }
-                        if ( ( etag = jqXHR.getResponseHeader( "Etag" ) ) ) {
-                            jQuery.etag[ ifModifiedKey ] = etag;
-                        }
-                    }
-
-                    // If not modified
-                    if ( status === 304 ) {
-
-                        statusText = "notmodified";
-                        isSuccess = true;
-
-                        // If we have data
-                    } else {
-
-                        try {
-                            success = ajaxConvert( s, response );
-                            statusText = "success";
-                            isSuccess = true;
-                        } catch(e) {
-                            // We have a parsererror
-                            statusText = "parsererror";
-                            error = e;
-                        }
-                    }
-                } else {
-                    // We extract error from statusText
-                    // then normalize statusText and status for non-aborts
-                    error = statusText;
-                    if ( !statusText || status ) {
-                        statusText = "error";
-                        if ( status < 0 ) {
-                            status = 0;
-                        }
-                    }
-                }
-
-                // Set data for the fake xhr object
-                jqXHR.status = status;
-                jqXHR.statusText = "" + ( nativeStatusText || statusText );
-
-                // Success/Error
-                if ( isSuccess ) {
-                    deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-                } else {
-                    deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-                }
-
-                // Status-dependent callbacks
-                jqXHR.statusCode( statusCode );
-                statusCode = undefined;
-
-                if ( fireGlobals ) {
-                    globalEventContext.trigger( "ajax" + ( isSuccess ? "Success" : "Error" ),
-                        [ jqXHR, s, isSuccess ? success : error ] );
-                }
-
-                // Complete
-                completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-                if ( fireGlobals ) {
-                    globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-                    // Handle the global AJAX counter
-                    if ( !( --jQuery.active ) ) {
-                        jQuery.event.trigger( "ajaxStop" );
+        // 对于不应该深度扩展的选项
+        // 可以在这里添加自己的自定义选项，如果创建了一个不应该深度扩展的选项（见 ajaxExtend）
+        flatOptions: {
+            context: true,
+            url: true
+        }
+    },
+    // 使用 addToPrefiltersOrTransports 函数为 prefilters 添加 ajaxPrefilter
+    ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+    // 使用 addToPrefiltersOrTransports 函数为 transports 添加 ajaxTransport
+    ajaxTransport: addToPrefiltersOrTransports( transports ),
+    // 主方法，用于发送 AJAX 请求
+    ajax: function( url, options ) {
+        // 如果 url 是一个对象，模拟 1.5 版本之前的签名
+        if ( typeof url === "object" ) {
+            options = url;
+            url = undefined;
+        }
+        // 强制 options 为对象
+        options = options || {};
+        var
+            // 创建最终的选项对象，使用 ajaxSetup 函数
+            s = jQuery.ajaxSetup( {}, options ),
+            // 回调函数的上下文
+            callbackContext = s.context || s,
+            // 全局事件的上下文
+            // 如果 options 中提供了回调上下文且为 DOM 节点或 jQuery 集合，则使用 jQuery 包装它，否则使用 jQuery.event
+            globalEventContext = callbackContext!== s &&
+            ( callbackContext.nodeType || callbackContext instanceof jQuery )?
+                jQuery( callbackContext ) : jQuery.event,
+            // 创建 Deferred 对象
+            deferred = jQuery.Deferred(),
+            // 仅调用一次的回调函数
+            completeDeferred = jQuery.Callbacks( "once memory" ),
+            // 状态相关的回调函数
+            statusCode = s.statusCode || {},
+            // ifModified 键
+            ifModifiedKey,
+            // 请求头，一次性发送
+            requestHeaders = {},
+            requestHeadersNames = {},
+            // 响应头
+            responseHeadersString,
+            responseHeaders,
+            // 传输对象
+            transport,
+            // 超时处理的定时器
+            timeoutTimer,
+            // 跨域检测变量
+            parts,
+            // jqXHR 的状态
+            state = 0,
+            // 是否触发全局事件
+            fireGlobals,
+            // 循环变量
+            i,
+            // 模拟的 xhr 对象
+            jqXHR = {
+                readyState: 0,
+                // 设置请求头
+                setRequestHeader: function( name, value ) {
+                    if (!state ) {
+                        var lname = name.toLowerCase();
+                        name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
+                        requestHeaders[ name ] = value;
                     }
-                }
-            }
-
-            // Attach deferreds
-            deferred.promise( jqXHR );
-            jqXHR.success = jqXHR.done;
-            jqXHR.error = jqXHR.fail;
-            jqXHR.complete = completeDeferred.add;
-
-            // Status-dependent callbacks
-            jqXHR.statusCode = function( map ) {
-                if ( map ) {
-                    var tmp;
-                    if ( state < 2 ) {
-                        for ( tmp in map ) {
-                            statusCode[ tmp ] = [ statusCode[tmp], map[tmp] ];
+                    return this;
+                },
+                // 获取所有响应头
+                getAllResponseHeaders: function() {
+                    return state === 2? responseHeadersString : null;
+                },
+                // 构建响应头的哈希表（如果需要）
+                getResponseHeader: function( key ) {
+                    var match;
+                    if ( state === 2 ) {
+                        if (!responseHeaders ) {
+                            responseHeaders = {};
+                            while( ( match = rheaders.exec( responseHeadersString ) ) ) {
+                                responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
+                            }
                         }
-                    } else {
-
+                        match = responseHeaders[ key.toLowerCase() ];
                     }
-                        tmp = map[ jqXHR.status ];
-                        jqXHR.then( tmp, tmp );
+                    return match === undefined? null : match;
+                },
+                // 覆盖响应的内容类型头
+                overrideMimeType: function( type ) {
+                    if (!state ) {
+                        s.mimeType = type;
                     }
-                }
-                return this;
-            };
-
-            // Remove hash character (#7531: and string promotion)
-            // Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
-            // We also use the url parameter if available
-            s.url = ( ( url || s.url ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
-
-            // Extract dataTypes list
-            s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().split( rspacesAjax );
-
-            // Determine if a cross-domain request is in order
-            if ( s.crossDomain == null ) {
-                parts = rurl.exec( s.url.toLowerCase() );
-                s.crossDomain = !!( parts &&
-                    ( parts[ 1 ] != ajaxLocParts[ 1 ] || parts[ 2 ] != ajaxLocParts[ 2 ] ||
-                        ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-                        ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
-                );
-            }
-
-            // Convert data if not already a string
-            if ( s.data && s.processData && typeof s.data !== "string" ) {
-                s.data = jQuery.param( s.data, s.traditional );
-            }
-
-            // Apply prefilters
-            inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-            // If request was aborted inside a prefilter, stop there
-            if ( state === 2 ) {
-                return false;
-            }
-
-            // We can fire global events as of now if asked to
-            fireGlobals = s.global;
-
-            // Uppercase the type
-            s.type = s.type.toUpperCase();
-
-            // Determine if request has content
-            s.hasContent = !rnoContent.test( s.type );
-
-            // Watch for a new set of requests
-            if ( fireGlobals && jQuery.active++ === 0 ) {
-                jQuery.event.trigger( "ajaxStart" );
-            }
-
-            // More options handling for requests with no content
-            if ( !s.hasContent ) {
-
-                // If data is available, append data to url
-                if ( s.data ) {
-                    s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.data;
-                    // #9682: remove data so that it's not used in an eventual retry
-                    delete s.data;
-                }
-
-                // Get ifModifiedKey before adding the anti-cache parameter
-                ifModifiedKey = s.url;
-
-                // Add anti-cache in url if needed
-                if ( s.cache === false ) {
-
-                    var ts = jQuery.now(),
-                        // try replacing _= if it is there
-                        ret = s.url.replace( rts, "$1_=" + ts );
-
-                    // if nothing was replaced, add timestamp to the end
-                    s.url = ret + ( ( ret === s.url ) ? ( rquery.test( s.url ) ? "&" : "?" ) + "_=" + ts : "" );
-                }
-            }
-
-            // Set the correct header, if data is being sent
-            if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-                jqXHR.setRequestHeader( "Content-Type", s.contentType );
-            }
-
-            // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-            if ( s.ifModified ) {
-                ifModifiedKey = ifModifiedKey || s.url;
-                if ( jQuery.lastModified[ ifModifiedKey ] ) {
-                    jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ ifModifiedKey ] );
-                }
-                if ( jQuery.etag[ ifModifiedKey ] ) {
-                    jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ ifModifiedKey ] );
-                }
-            }
-
-            // Set the Accepts header for the server, depending on the dataType
-            jqXHR.setRequestHeader(
-                "Accept",
-                s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-                    s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-                    s.accepts[ "*" ]
-            );
-
-            // Check for headers option
-            for ( i in s.headers ) {
-                jqXHR.setRequestHeader( i, s.headers[ i ] );
-            }
-
-            // Allow custom headers/mimetypes and early abort
-            if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-                // Abort if not done already
-                jqXHR.abort();
-                return false;
-
-            }
-
-            // Install callbacks on deferreds
-            for ( i in { success: 1, error: 1, complete: 1 } ) {
-                jqXHR[ i ]( s[ i ] );
-            }
-
-            // Get transport
-            transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-            // If no transport, we auto-abort
-            if ( !transport ) {
-                done( -1, "No Transport" );
-            } else {
-                jqXHR.readyState = 1;
-                // Send global event
-                if ( fireGlobals ) {
-                    globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-                }
-                // Timeout
-                if ( s.async && s.timeout > 0 ) {
-                    timeoutTimer = setTimeout( function(){
-                        jqXHR.abort( "timeout" );
-                    }, s.timeout );
-                }
-
-                try {
-                    state = 1;
-                    transport.send( requestHeaders, done );
-                } catch (e) {
-                    // Propagate exception as error if not done
-                    if ( state < 2 ) {
-                        done( -1, e );
-                        // Simply rethrow otherwise
-                    } else {
-                        throw e;
+                    return this;
+                },
+                // 取消请求
+                abort: function( statusText ) {
+                    statusText = statusText || "abort";
+                    if ( transport ) {
+                        transport.abort( statusText );
                     }
+                    done( 0, statusText );
+                    return this;
                 }
-            }
-
-            return jqXHR;
-        },
-
-        // Serialize an array of form elements or a set of
-        // key/values into a query string
-        param: function( a, traditional ) {
-            var s = [],
-                add = function( key, value ) {
-                    // If value is a function, invoke it and return its value
-                    value = jQuery.isFunction( value ) ? value() : value;
-                    s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-                };
-
-            // Set traditional to true for jQuery <= 1.3.2 behavior.
-            if ( traditional === undefined ) {
-                traditional = jQuery.ajaxSettings.traditional;
-            }
-
-            // If an array was passed in, assume that it is an array of form elements.
-            if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-                // Serialize the form elements
-                jQuery.each( a, function() {
-                    add( this.name, this.value );
-                });
-
-            } else {
-                // If traditional, encode the "old" way (the way 1.3.2 or older
-                // did it), otherwise encode params recursively.
-                for ( var prefix in a ) {
-                    buildParams( prefix, a[ prefix ], traditional, add );
-                }
-            }
-
-            // Return the resulting serialization
-            return s.join( "&" ).replace( r20, "+" );
-        }
-    });
-
-    function buildParams( prefix, obj, traditional, add ) {
-        if ( jQuery.isArray( obj ) ) {
-            // Serialize array item.
-            jQuery.each( obj, function( i, v ) {
-                if ( traditional || rbracket.test( prefix ) ) {
-                    // Treat each array item as a scalar.
-                    add( prefix, v );
-
-                } else {
-                    // If array item is non-scalar (array or object), encode its
-                    // numeric index to resolve deserialization ambiguity issues.
-                    // Note that rack (as of 1.0.0) can't currently deserialize
-                    // nested arrays properly, and attempting to do so may cause
-                    // a server error. Possible fixes are to modify rack's
-                    // deserialization algorithm or to provide an option or flag
-                    // to force array serialization to be shallow.
-                    buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
-                }
-            });
-
-        } else if ( !traditional && jQuery.type( obj ) === "object" ) {
-            // Serialize object item.
-            for ( var name in obj ) {
-                buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-            }
-
-        } else {
-            // Serialize scalar item.
-            add( prefix, obj );
-        }
-    }
-
-// This is still on the jQuery object... for now
-// Want to move this to jQuery.ajax some day
-    jQuery.extend({
-
-        // Counter for holding the number of active queries
-        active: 0,
-
-        // Last-Modified header cache for next request
-        lastModified: {},
-        etag: {}
-
-    });
-
-    /* Handles responses to an ajax request:
- * - sets all responseXXX fields accordingly
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-    // 函数用于处理 AJAX 请求的响应
-    function ajaxHandleResponses(s, jqXHR, responses) {
-        var contents = s.contents,
-            dataTypes = s.dataTypes,
-            responseFields = s.responseFields,
-            ct,
-            type,
-            finalDataType,
-            firstDataType;
-
-        // 遍历 responseFields 并将响应数据存储到 jqXHR 的相应属性中
-        for (type in responseFields) {
-            if (type in responses) {
-                jqXHR[responseFields[type]] = responses[type];
-            }
-        }
-
-        // 移除自动数据类型，并在过程中获取内容类型
-        while (dataTypes[0] === "*") {
-            dataTypes.shift();
-            if (ct === undefined) {
-                ct = s.mimeType || jqXHR.getResponseHeader("content-type");
-            }
-        }
-
-        // 检查是否是已知的内容类型
-        if (ct) {
-            for (type in contents) {
-                if (contents[type] && contents[type].test(ct)) {
-                    dataTypes.unshift(type);
-                    break;
-                }
-            }
-        }
-
-        // 检查是否有期望数据类型的响应
-        if (dataTypes[0] in responses) {
-            finalDataType = dataTypes[0];
-        } else {
-            // 尝试可转换的数据类型
-            for (type in responses) {
-                if (!dataTypes[0] || s.converters[type + " " + dataTypes[0]]) {
-                    finalDataType = type;
-                    break;
-                }
-                if (!firstDataType) {
-                    firstDataType = type;
-                }
-            }
-            // 或者仅使用第一个数据类型
-            finalDataType = finalDataType || firstDataType;
-        }
-
-        // 如果找到了数据类型
-        // 如果需要，将数据类型添加到列表中并返回相应的响应
-        if (finalDataType) {
-            if (finalDataType!== dataTypes[0]) {
-                dataTypes.unshift(finalDataType);
-            }
-            return responses[finalDataType];
-        }
-    }
-
-// 根据请求和原始响应进行链式转换
-    function ajaxConvert(s, response) {
-        // 如果提供了数据过滤器，则应用数据过滤器
-        if (s.dataFilter) {
-            response = s.dataFilter(response, s.dataType);
-        }
-
-        var dataTypes = s.dataTypes,
-            converters = {},
-            i,
-            key,
-            length = dataTypes.length,
-            tmp,
-            // 当前和之前的数据类型
-            current = dataTypes[0],
-            prev,
-            // 转换表达式
-            conversion,
-            // 转换函数
-            conv,
-            // 转换函数（传递转换）
-            conv1,
-            conv2;
-
-        // 对于链中的每个数据类型
-        for (i = 1; i < length; i++) {
-            // 创建转换器映射，使用小写键
-            if (i === 1) {
-                for (key in s.converters) {
-                    if (typeof key === "string") {
-                        converters[key.toLowerCase()] = s.converters[key];
-                    }
-                }
-            }
-
-            // 获取数据类型
-            prev = current;
-            current = dataTypes[i];
-
-            // 如果当前是自动数据类型，将其更新为 prev
-            if (current === "*") {
-                current = prev;
-                // 如果不是自动数据类型且数据类型不同
-            } else if (prev!== "*" && prev!== current) {
-                // 获取转换器
-                conversion = prev + " " + current;
-                conv = converters[conversion] || converters["* " + current];
-
-                // 如果没有直接的转换器，进行传递搜索
-                if (!conv) {
-                    conv2 = undefined;
-                    for (conv1 in converters) {
-                        tmp = conv1.split(" ");
-                        if (tmp[0] === prev || tmp[0] === "*") {
-                            conv2 = converters[tmp[1] + " " + current];
-                            if (conv2) {
-                                conv1 = converters[conv1];
-                                if (conv1 === true) {
-                                    conv = conv2;
-                                } else if (conv2 === true) {
-                                    conv = conv1;
-                                }
-                                break;
-                            }
-                        }
-                    }
-                }
-                // 如果没有找到转换器，发出错误
-                if (!(conv || conv2)) {
-                    jQuery.error("No conversion from " + conversion.replace(" ", " to "));
-                }
-                // 如果找到的转换器不是等价的
-                if (conv!== true) {
-                    // 相应地使用 1 或 2 个转换器进行转换
-                    response = conv? conv(response) : conv2(conv1(response));
-                }
-            }
-        }
-        return response;
-    }
-
-    var jsc = jQuery.now(),
-        jsre = /(\=)\?(&|$)|\?\?/i;
-
-// Default jsonp settings
-    // 使用 jQuery.ajaxSetup 配置全局的 AJAX 设置
-    jQuery.ajaxSetup({
-        // 定义 jsonp 的参数名
-        jsonp: "callback",
-        // 定义 jsonpCallback 函数，生成一个唯一的回调函数名
-        jsonpCallback: function () {
-            return jQuery.expando + "_" + (jsc++);
-        }
-    });
-
-// Detect, normalize options and install callbacks for jsonp requests
-// 使用 jQuery.ajaxPrefilter 对 json 和 jsonp 类型的请求进行预处理
-    jQuery.ajaxPrefilter("json jsonp", function (s, originalSettings, jqXHR) {
-        // 检查 s.data 是否为字符串且内容类型是否为 application/x-www-form-urlencoded
-        var inspectData = (typeof s.data === "string") && /^application\/x-www-form-urlencoded/.test(s.contentType);
-
-        // 如果数据类型为 jsonp 或 jsonp 不为 false 且 url 或 data 中包含 jsonp 回调参数
-        if (s.dataTypes[0] === "jsonp" ||
-            s.jsonp!== false && (jsre.test(s.url) ||
-                inspectData && jsre.test(s.data))) {
-
-            var responseContainer,
-                // 获取或生成 jsonpCallback 函数
-                jsonpCallback = s.jsonpCallback =
-                    jQuery.isFunction(s.jsonpCallback)? s.jsonpCallback() : s.jsonpCallback,
-                // 存储之前的 jsonpCallback 函数
-                previous = window[jsonpCallback],
-                url = s.url,
-                data = s.data,
-                replace = "$1" + jsonpCallback + "$2";
-
-            if (s.jsonp!== false) {
-                // 替换 url 中的 jsonp 回调参数
-                url = url.replace(jsre, replace);
-                if (s.url === url) {
-                    if (inspectData) {
-                        // 替换 data 中的 jsonp 回调参数
-                        data = data.replace(jsre, replace);
-                    }
-                    if (s.data === data) {
-                        // 手动添加 jsonp 回调参数到 url 中
-                        url += (/\?/.test(url)? "&" : "?") + s.jsonp + "=" + jsonpCallback;
-                    }
-                }
-            }
-
-            s.url = url;
-            s.data = data;
-
-            // 安装回调函数
-            window[jsonpCallback] = function (response) {
-                responseContainer = [response];
-            };
-
-            // 清理函数
-            jqXHR.always(function () {
-                // 将回调函数恢复为之前的值
-                window[jsonpCallback] = previous;
-                // 如果 responseContainer 存在且 previous 是函数，则调用回调函数
-                if (responseContainer && jQuery.isFunction(previous)) {
-                    window[jsonpCallback](responseContainer[0]);
-                }
-            });
-
-            // 使用数据转换器在脚本执行后获取 json 数据
-            s.converters["script json"] = function () {
-                if (!responseContainer) {
-                    jQuery.error(jsonpCallback + " was not called");
-                }
-                return responseContainer[0];
-            };
-
-            // 强制使用 json 数据类型
-            s.dataTypes[0] = "json";
-
-            // 委托给 script 类型处理
-            return "script";
-        }
-    });
-
-
-// Install script dataType
-// 使用 jQuery.ajaxSetup 配置 script 数据类型的相关设置
-    jQuery.ajaxSetup({
-        accepts: {
-            // 定义 script 类型可接受的内容类型
-            script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
-        },
-        contents: {
-            // 定义 script 类型的内容匹配正则表达式
-            script: /javascript|ecmascript/
-        },
-        converters: {
-            // 定义 text 到 script 的数据转换器，执行全局的脚本评估
-            "text script": function (text) {
-                jQuery.globalEval(text);
-                return text;
-            }
-        }
-    });
-
-// Handle cache's special case and global
-    // 使用 jQuery.ajaxPrefilter 为 "script" 类型的请求添加预处理
-    jQuery.ajaxPrefilter("script", function (s) {
-        // 如果未定义 s.cache，则将其设置为 false
-        if (s.cache === undefined) {
-            s.cache = false;
-        }
-        // 如果是跨域请求
-        if (s.crossDomain) {
-            // 将请求类型设置为 GET
-            s.type = "GET";
-            // 将全局标志设置为 false
-            s.global = false;
-        }
-    });
-
-// 绑定 script 标签的 hack 传输方式
-    jQuery.ajaxTransport("script", function (s) {
-        // 这个传输方式仅处理跨域请求
-        if (s.crossDomain) {
-            var script,
-                // 获取文档的 head 元素
-                head = document.head || document.getElementsByTagName("head")[0] || document.documentElement;
-
-            return {
-                send: function (_, callback) {
-                    // 创建 script 元素
-                    script = document.createElement("script");
-                    // 设置 script 元素为异步加载
-                    script.async = "async";
-                    // 如果设置了脚本字符集，将其设置到 script 元素上
-                    if (s.scriptCharset) {
-                        script.charset = s.scriptCharset;
-                    }
-                    // 设置 script 的 src 属性为请求的 url
-                    script.src = s.url;
-
-                    // 为 script 元素添加 onload 和 onreadystatechange 事件处理函数
-                    script.onload = script.onreadystatechange = function (_, isAbort) {
-                        // 如果是中止或者 script 的 readyState 不存在或为 loaded 或 complete 状态
-                        if (isAbort ||!script.readyState || /loaded|complete/.test(script.readyState)) {
-                            // 处理 IE 的内存泄漏问题
-                            script.onload = script.onreadystatechange = null;
-                            // 移除 script 元素
-                            if (head && script.parentNode) {
-                                head.removeChild(script);
-                            }
-                            // 解除对 script 的引用
-                            script = undefined;
-                            // 如果不是中止，调用回调函数
-                            if (!isAbort) {
-                                callback(200, "success");
-                            }
-                        }
-                    };
-                    // 使用 insertBefore 代替 appendChild 以避免 IE6 的一个 bug
-                    // 当使用 base 节点时会出现此问题 (#2709 和 #4378)
-                    head.insertBefore(script, head.firstChild);
-                },
-                // abort 函数，用于中止请求
-                abort: function () {
-                    if (script) {
-                        script.onload(0, 1);
-                    }
-                }
-            };
-        }
-    });
-
-
-
-
-    // #5280: Internet Explorer will keep connections alive if we don't abort on unload
-// 定义 xhrOnUnloadAbort 函数，用于在页面卸载时中止所有挂起的请求（针对 IE）
-    var xhrOnUnloadAbort = window.ActiveXObject? function() {
-            // 中止所有挂起的请求
-            for (var key in xhrCallbacks) {
-                xhrCallbacks[key](0, 1);
-            }
-        } : false,
-        // 存储 xhr 的唯一标识符
-        xhrId = 0,
-        // 存储 xhr 的回调函数
-        xhrCallbacks;
-
-// Functions to create xhrs
-// 创建标准的 XHR 对象
-    function createStandardXHR() {
-        try {
-            return new window.XMLHttpRequest();
-        } catch (e) {}
-    }
-
-// 创建 ActiveXHR 对象（用于 IE）
-    function createActiveXHR() {
-        try {
-            return new window.ActiveXObject("Microsoft.XMLHTTP");
-        } catch (e) {}
-    }
-
-// Create the request object
-// (This is still attached to ajaxSettings for backward compatibility)
-// 根据浏览器环境选择创建 XHR 对象的函数，并将其赋值给 jQuery.ajaxSettings.xhr
-    jQuery.ajaxSettings.xhr = window.ActiveXObject?
-        // Microsoft failed to properly implement the XMLHttpRequest in IE7 (can't request local files),
-        // so we use the ActiveXObject when it is available
-        // Additionally XMLHttpRequest can be disabled in IE7/IE8 so we need a fallback.
-        function() {
-            return!this.isLocal && createStandardXHR() || createActiveXHR();
-        } :
-        // For all other browsers, use the standard XMLHttpRequest object
-        createStandardXHR;
-
-// Determine support properties
-// 扩展 jQuery.support 对象，判断浏览器对 ajax 和 cors 的支持情况
-    (function (xhr) {
-        jQuery.extend(jQuery.support, {
-            ajax:!!xhr,
-            cors:!!xhr && ("withCredentials" in xhr)
-        });
-    })(jQuery.ajaxSettings.xhr());
-// Create transport if the browser can provide an xhr
-// 如果浏览器支持 xhr，则创建传输对象
-    if (jQuery.support.ajax) {
-        jQuery.ajaxTransport(function (s) {
-            // Cross domain only allowed if supported through XMLHttpRequest
-            // 仅当通过 XMLHttpRequest 支持跨域时才允许跨域请求
-            if (!s.crossDomain || jQuery.support.cors) {
-                var callback;
-
-                return {
-                    send: function (headers, complete) {
-                        // 获取一个新的 xhr 对象
-                        var xhr = s.xhr(),
-                            handle,
-                            i;
-
-                        // 打开请求连接
-                        // 传递空用户名会在 Opera 上触发登录弹窗 (#2865)
-                        if (s.username) {
-                            xhr.open(s.type, s.url, s.async, s.username, s.password);
-                        } else {
-                            xhr.open(s.type, s.url, s.async);
-                        }
-
-                        // 应用自定义字段（如果提供）
-                        if (s.xhrFields) {
-                            for (i in s.xhrFields) {
-                                xhr[i] = s.xhrFields[i];
-                            }
-                        }
-
-                        // 覆盖 MIME 类型（如果需要）
-                        if (s.mimeType && xhr.overrideMimeType) {
-                            xhr.overrideMimeType(s.mimeType);
-                        }
-
-                        // X-Requested-With header
-                        // 对于跨域请求，由于预检条件比较复杂，我们通常不设置该头
-                        // 对于同域请求，如果未提供该头则设置
-                        if (!s.crossDomain &&!headers["X-Requested-With"]) {
-                            headers["X-Requested-With"] = "XMLHttpRequest";
-                        }
-
-                        // Need an extra try/catch for cross domain requests in Firefox 3
-                        // 在 Firefox 3 中进行跨域请求时需要额外的 try/catch
-                        try {
-                            // 遍历 headers 对象，为 xhr 设置请求头
-                            for (i in headers) {
-                                xhr.setRequestHeader(i, headers[i]);
-                            }
-                        } catch (_) {}
-
-// 发送请求
-// 这里可能会引发异常，实际上会在 jQuery.ajax 中处理，所以这里没有 try/catch
-                        xhr.send((s.hasContent && s.data) || null);
-
-// 监听器函数
-                        callback = function (_, isAbort) {
-                            var status,
-                                statusText,
-                                responseHeaders,
-                                responses,
-                                xml;
-
-                            // Firefox 在网络错误时访问 xhr 的属性会抛出异常
-                            // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
-                            try {
-                                // 如果 callback 存在且 (是中止状态或者 xhr 的 readyState 为 4)
-                                if (callback && (isAbort || xhr.readyState === 4)) {
-
-                                    // 只调用一次
-                                    callback = undefined;
-
-                                    // 不再保持活跃状态
-                                    if (handle) {
-                                        xhr.onreadystatechange = jQuery.noop;
-                                        if (xhrOnUnloadAbort) {
-                                            delete xhrCallbacks[handle];
-                                        }
-                                    }
-
-                                    // 如果是中止操作
-                                    if (isAbort) {
-                                        // 如果需要，手动中止请求
-                                        if (xhr.readyState!== 4) {
-                                            xhr.abort();
-                                        }
-                                    } else {
-                                        // 获取响应状态码
-                                        status = xhr.status;
-                                        // 获取所有响应头
-                                        responseHeaders = xhr.getAllResponseHeaders();
-                                        responses = {};
-                                        // 获取响应的 XML 数据
-                                        xml = xhr.responseXML;
-
-                                        // 构建响应列表
-                                        if (xml && xml.documentElement /* #4958 */) {
-                                            responses.xml = xml;
-                                        }
-
-                                        // 当请求二进制数据时，IE6-9 尝试访问 responseText 会抛出异常 (#11426)
-                                        try {
-                                            responses.text = xhr.responseText;
-                                        } catch (_) {}
-
-                                        // Firefox 访问跨域请求的 statusText 时会抛出异常
-                                        try {
-                                            statusText = xhr.statusText;
-                                        } catch (e) {
-                                            // 标准化处理，Webkit 会给出空的 statusText
-                                            statusText = "";
-                                        }
-
-                                        // 对非标准行为过滤状态
-
-                                        // 如果请求是本地的且有数据：假设请求成功
-                                        // (无数据的成功请求不会被通知，这是在当前实现下能做到的最好处理)
-                                        if (!status && s.isLocal &&!s.crossDomain) {
-                                            status = responses.text? 200 : 404;
-                                            // IE - #1450: 有时应返回 204 却返回 1223
-                                        } else if (status === 1223) {
-                                            status = 204;
-                                        }
-                                    }
-                                }
-                            } catch (firefoxAccessException) {
-                                // 如果不是中止操作
-                                if (!isAbort) {
-                                    complete(-1, firefoxAccessException);
-                                }
-                            }
-
-                            // 如果需要，调用 complete 函数
-                            if (responses) {
-                                complete(status, statusText, responses, responseHeaders);
-                            }
-                        };
-
-// 如果是同步模式或者在缓存中且直接获取到（IE6 和 IE7）
-// 我们需要手动触发回调
-                        if (!s.async || xhr.readyState === 4) {
-                            callback();
-                        } else {
-                            handle = ++xhrId;
-                            if (xhrOnUnloadAbort) {
-                                // 如果需要，创建活跃的 xhrs 回调列表并添加 unload 处理器
-                                if (!xhrCallbacks) {
-                                    xhrCallbacks = {};
-                                    jQuery(window).unload(xhrOnUnloadAbort);
-                                }
-                                // 添加到活跃的 xhrs 回调列表
-                                xhrCallbacks[handle] = callback;
-                            }
-                            // 设置 xhr 的 onreadystatechange 事件处理函数为 callback
-                            xhr.onreadystatechange = callback;
-                        }
-                    },
-
-// abort 函数，用于中止请求
-                    abort: function () {
-                        if (callback) {
-                            callback(0, 1);
-                        }
-                    };
-
-
-
-
-                    // 存储元素的默认显示属性
-                    var elemdisplay = {},
-                    // 存储 iframe 元素
-                    iframe, iframeDoc,
-                    // 用于匹配 toggle、show 或 hide 的正则表达式
-                    rfxtypes = /^(?:toggle|show|hide)$/,
-                    // 用于匹配数字和单位的正则表达式
-                    rfxnum = /^([+\-]=)?([\d+.\-]+)([a-z%]*)$/i,
-                    // 存储定时器 ID
-                    timerId,
-                    // 存储不同类型动画涉及的属性数组
-                    fxAttrs = [
-                        // 高度相关动画涉及的属性
-                        ["height", "marginTop", "marginBottom", "paddingTop", "paddingBottom"],
-                        // 宽度相关动画涉及的属性
-                        ["width", "marginLeft", "marginRight", "paddingLeft", "paddingRight"],
-                        // 透明度相关动画涉及的属性
-                        ["opacity"]
-                    ],
-                    // 存储当前动画的时间
-                    fxNow;
-
-// 扩展 jQuery.fn 对象
-                    jQuery.fn.extend({
-                        show: function (speed, easing, callback) {
-                            var elem, display;
-
-                            // 如果指定了速度（包括速度为 0）
-                            if (speed || speed === 0) {
-                                // 使用 animate 函数，根据 genFx 生成的显示属性进行动画显示操作，并指定速度、缓动和回调
-                                return this.animate(genFx("show", 3), speed, easing, callback);
-
-                            } else {
-                                // 遍历元素集合
-                                for (var i = 0, j = this.length; i < j; i++) {
-                                    elem = this[i];
-
-                                    if (elem.style) {
-                                        // 获取元素的显示样式
-                                        display = elem.style.display;
-
-                                        // 如果元素没有存储 "olddisplay" 数据且显示样式为 "none"
-                                        if (!jQuery._data(elem, "olddisplay") && display === "none") {
-                                            // 重置元素的显示样式为空字符串
-                                            display = elem.style.display = "";
-                                        }
-
-                                        // 如果元素的显示样式为空且 jQuery.css 显示为 "none" 或元素不在文档元素中
-                                        if ((display === "" && jQuery.css(elem, "display") === "none") ||
-                                            !jQuery.contains(elem.ownerDocument.documentElement, elem)) {
-                                            // 存储元素的默认显示样式
-                                            jQuery._data(elem, "olddisplay", defaultDisplay(elem.nodeName));
-                                        }
-                                    }
-                                }
-
-                                // 第二个循环设置元素的显示样式，避免频繁重排
-                                for (i = 0; i < j; i++) {
-                                    elem = this[i];
-
-                                    if (elem.style) {
-                                        display = elem.style.display;
-
-                                        // 如果元素的显示样式为空或为 "none"
-                                        if (display === "" || display === "none") {
-                                            // 将元素的显示样式设置为存储的 "olddisplay" 数据或空字符串
-                                            elem.style.display = jQuery._data(elem, "olddisplay") || "";
-                                        }
-                                    }
-                                }
-
-                                // 返回 jQuery 对象本身
-                                return this;
-                            }
-                        }
-                    });
-
-                    hide: function( speed, easing, callback ) {
-                        // 如果指定了速度（包括速度为 0）
-                        if ( speed || speed === 0 ) {
-                            // 使用 animate 函数，根据 genFx 生成的隐藏属性进行动画隐藏操作，并指定速度、缓动和回调
-                            return this.animate( genFx("hide", 3), speed, easing, callback);
-
-                        } else {
-                            var elem, display,
-                                i = 0,
-                                j = this.length;
-
-                            // 遍历元素集合
-                            for ( ; i < j; i++ ) {
-                                elem = this[i];
-                                if ( elem.style ) {
-                                    // 获取元素的显示样式
-                                    display = jQuery.css( elem, "display" );
-
-                                    // 如果元素当前显示样式不为 "none" 且元素没有存储 "olddisplay" 数据
-                                    if ( display!== "none" &&!jQuery._data( elem, "olddisplay" ) ) {
-                                        // 存储元素的当前显示样式
-                                        jQuery._data( elem, "olddisplay", display );
-                                    }
-                                }
-                            }
-
-                            // 第二个循环设置元素的显示样式为 "none"
-                            // 避免频繁的重排
-                            for ( i = 0; i < j; i++ ) {
-                                if ( this[i].style ) {
-                                    this[i].style.display = "none";
-                                }
-                            }
-
-                            // 返回 jQuery 对象本身
-                            return this;
-                        }
-                    },
-
-// 保存旧的 toggle 函数
-                    _toggle: jQuery.fn.toggle,
-
-                    toggle: function( fn, fn2, callback ) {
-                        var bool = typeof fn === "boolean";
-
-                        // 如果 fn 和 fn2 都是函数
-                        if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
-                            // 应用旧的 toggle 函数
-                            this._toggle.apply( this, arguments );
-
-                        } else if ( fn == null || bool ) {
-                            // 遍历元素集合
-                            this.each(function() {
-                                var state = bool? fn : jQuery(this).is(":hidden");
-                                // 根据元素状态进行显示或隐藏操作
-                                jQuery(this)[ state? "show" : "hide" ]();
-                            });
-
-                        } else {
-                            // 使用 animate 函数，根据 genFx 生成的切换属性进行动画切换操作，并指定速度、缓动和回调
-                            this.animate(genFx("toggle", 3), fn, fn2, callback);
-                        }
-
-                        // 返回 jQuery 对象本身
-                        return this;
-                    }
-
-                    fadeTo: function( speed, to, easing, callback ) {
-                        // 过滤出隐藏的元素，将其不透明度设置为 0，显示它们，回到之前的状态，并执行动画
-                        return this.filter(":hidden").css("opacity", 0).show().end()
-                            .animate({opacity: to}, speed, easing, callback);
-                    },
-
-                    animate: function( prop, speed, easing, callback ) {
-                        // 使用 jQuery.speed 函数生成动画的速度、缓动和回调等配置信息
-                        var optall = jQuery.speed( speed, easing, callback );
-
-                        // 如果传入的 prop 是空对象，对每个元素调用 optall.complete 函数并传入 false 作为参数
-                        if ( jQuery.isEmptyObject( prop ) ) {
-                            return this.each( optall.complete, [ false ] );
-                        }
-
-                        // 扩展一个新的对象存储 prop，避免修改原有的引用，防止丢失每个属性的缓动设置
-                        prop = jQuery.extend( {}, prop );
-
-                        function doAnimation() {
-                            // 在测试套件中，'this' 可能并不总是有 nodeName 属性
-
-                            // 如果 optall.queue 为 false，标记元素
-                            if ( optall.queue === false ) {
-                                jQuery._mark( this );
-                            }
-
-                            var opt = jQuery.extend( {}, optall ),
-                                isElement = this.nodeType === 1,
-                                hidden = isElement && jQuery(this).is(":hidden"),
-                                name, val, p, e, hooks, replace,
-                                parts, start, end, unit,
-                                method;
-
-                            // 存储每个属性的缓动信息，并用于判断动画是否完成
-                            opt.animatedProperties = {};
-
-                            // 第一次遍历属性，进行扩展和规范化处理
-                            for ( p in prop ) {
-                                name = jQuery.camelCase( p );
-                                if ( p!== name ) {
-                                    // 将转换后的属性名作为键，存储原属性值，并删除原属性键
-                                    prop[ name ] = prop[ p ];
-                                    delete prop[ p ];
-                                }
-
-                                if ( ( hooks = jQuery.cssHooks[ name ] ) && "expand" in hooks ) {
-                                    // 使用 cssHooks 的 expand 方法扩展属性值
-                                    replace = hooks.expand( prop[ name ] );
-                                    delete prop[ name ];
-
-                                    // 并非完全的 jQuery.extend，不会覆盖已有的键
-                                    // 这里复用上面的 'p'，因为我们有正确的 "name"
-                                    for ( p in replace ) {
-                                        if (! ( p in prop ) ) {
-                                            prop[ p ] = replace[ p ];
-                                        }
-                                    }
-                                }
-                            }
-                        }
-
-                        for ( name in prop ) {
-                            val = prop[ name ];
-                            // easing resolution: per property > opt.specialEasing > opt.easing > 'swing' (default)
-                            // 缓动的处理逻辑：根据每个属性 > opt.specialEasing > opt.easing > 'swing'（默认）
-                            if ( jQuery.isArray( val ) ) {
-                                // 如果 val 是数组，将 opt.animatedProperties 中 name 对应的属性设置为 val[1]
-                                opt.animatedProperties[ name ] = val[ 1 ];
-                                // 将 prop 中 name 对应的属性设置为 val[0]
-                                val = prop[ name ] = val[ 0 ];
-                            } else {
-                                // 否则，设置 opt.animatedProperties 中 name 对应的属性为 opt.specialEasing 中 name 对应的属性，如果不存在则使用 opt.easing，再不存在使用'swing'
-                                opt.animatedProperties[ name ] = opt.specialEasing && opt.specialEasing[ name ] || opt.easing ||'swing';
-                            }
-
-                            // 如果 val 是 'hide' 且 hidden 为真，或者 val 是'show' 且 hidden 为假，调用 opt.complete 函数
-                            if ( val === "hide" && hidden || val === "show" &&!hidden ) {
-                                return opt.complete.call( this );
-                            }
-
-                            if ( isElement && ( name === "height" || name === "width" ) ) {
-                                // 确保没有遗漏
-                                // 记录所有 3 个 overflow 属性，因为 IE 在 overflowX 和 overflowY 被设置为相同值时不会改变 overflow 属性
-                                opt.overflow = [ this.style.overflow, this.style.overflowX, this.style.overflowY ];
-
-                                // 对于内联元素，当动画 width 或 height 时，将 display 属性设置为 inline-block
-                                if ( jQuery.css( this, "display" ) === "inline" &&
-                                    jQuery.css( this, "float" ) === "none" ) {
-
-                                    // 内联元素使用 inline-block；块级元素需要 inline 布局
-                                    if (!jQuery.support.inlineBlockNeedsLayout || defaultDisplay( this.nodeName ) === "inline" ) {
-                                        this.style.display = "inline-block";
-                                    } else {
-                                        this.style.zoom = 1;
-                                    }
-                                }
-                            }
-                        }
-
-// 如果 opt.overflow 不为 null，将元素的 overflow 属性设置为 "hidden"
-                        if ( opt.overflow!= null ) {
-                            this.style.overflow = "hidden";
-                        }
-
-                        for ( p in prop ) {
-                            // 创建 jQuery.fx 对象
-                            e = new jQuery.fx( this, opt, p );
-                            val = prop[ p ];
-
-                            if ( rfxtypes.test( val ) ) {
-                                // 根据元素的私有数据来决定是显示还是隐藏
-                                method = jQuery._data( this, "toggle" + p ) || ( val === "toggle"? hidden? "show" : "hide" : 0 );
-                                if ( method ) {
-                                    // 存储 toggle 数据
-                                    jQuery._data( this, "toggle" + p, method === "show"? "hide" : "show" );
-                                    // 调用相应的 show 或 hide 方法
-                                    e[ method ]();
-                                } else {
-                                    // 调用 val 对应的方法
-                                    e[ val ]();
-                                }
-                            } else {
-                                parts = rfxnum.exec( val );
-                                start = e.cur();
-
-                                if ( parts ) {
-                                    // 获取最终值和单位
-                                    end = parseFloat( parts[2] );
-                                    unit = parts[3] || ( jQuery.cssNumber[ p ]? "" : "px" );
-
-                                    // 计算起始值
-                                    if ( unit!== "px" ) {
-                                        jQuery.style( this, p, (end || 1) + unit);
-                                        start = ( (end || 1) / e.cur() ) * start;
-                                        jQuery.style( this, p, start + unit);
-                                    }
-
-                                    // 如果有 += 或 -= 标记，进行相对动画
-                                    if ( parts[1] ) {
-                                        end = ( (parts[ 1 ] === "-="? -1 : 1) * end ) + start;
-                                    }
-
-                                    // 调用 custom 方法进行自定义动画
-                                    e.custom( start, end, unit );
-                                } else {
-                                    // 调用 custom 方法进行自定义动画，使用默认单位
-                                    e.custom( start, val, "" );
-                                }
-                            }
-                        }
-
-// 为了符合 JS 严格模式
-                        return true;
-                    }
-
-// 根据 optall.queue 是否为 false 决定执行动画的方式
-                    return optall.queue === false?
-                        this.each( doAnimation ) :
-                        this.queue( optall.queue, doAnimation );
-
-                    stop: function( type, clearQueue, gotoEnd ) {
-                        // 如果 type 不是字符串，重新分配参数
-                        if ( typeof type!== "string" ) {
-                            gotoEnd = clearQueue;
-                            clearQueue = type;
-                            type = undefined;
-                        }
-                        // 如果 clearQueue 为真且 type 不为 false，将相应队列清空
-                        if ( clearQueue && type!== false ) {
-                            this.queue( type || "fx", [] );
-                        }
-
-                        // 对集合中的每个元素进行操作
-                        return this.each(function() {
-                            var index,
-                                hadTimers = false,
-                                timers = jQuery.timers,
-                                data = jQuery._data( this );
-
-                            // 如果不跳转到结束，清除标记计数器
-                            if (!gotoEnd ) {
-                                jQuery._unmark( true, this );
-                            }
-
-                            // 定义 stopQueue 函数，用于停止队列
-                            function stopQueue( elem, data, index ) {
-                                var hooks = data[ index ];
-                                // 移除元素上的 index 数据
-                                jQuery.removeData( elem, index, true );
-                                // 调用 hooks 的 stop 方法，可能是停止动画
-                                hooks.stop( gotoEnd );
-                            }
-
-                            // 如果 type 为 null
-                            if ( type == null ) {
-                                // 遍历 data 中的每个属性
-                                for ( index in data ) {
-                                    // 如果属性存在且有 stop 方法且 index 以.run 结尾
-                                    if ( data[ index ] && data[ index ].stop && index.indexOf(".run") === index.length - 4 ) {
-                                        // 调用 stopQueue 函数
-                                        stopQueue( this, data, index );
-                                    }
-                                }
-                            } else if ( data[ index = type + ".run" ] && data[ index ].stop ){
-                                // 如果存在 type + ".run" 且有 stop 方法，调用 stopQueue 函数
-                                stopQueue( this, data, index );
-                            }
-
-                            // 遍历定时器数组
-                            for ( index = timers.length; index--; ) {
-                                // 如果定时器元素是当前元素且满足类型条件
-                                if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
-                                    if ( gotoEnd ) {
-                                        // 强制下一个步骤为最后一步
-                                        timers[ index ]( true );
-                                    } else {
-                                        // 保存定时器状态
-                                        timers[ index ].saveState();
-                                    }
-                                    hadTimers = true;
-                                    // 从定时器数组中移除该定时器
-                                    timers.splice( index, 1 );
-                                }
-                            }
-
-                            // 如果没有强制最后一步，开始队列中的下一个任务
-                            if (!( gotoEnd && hadTimers ) ) {
-                                jQuery.dequeue( this, type );
-                            }
-                        });
-                    }
-
-// Animations created synchronously will run synchronously
-                    // 创建当前动画时间的函数
-                    function createFxNow() {
-                    // 立即调用 clearFxNow 函数，延迟时间为 0
-                    setTimeout(clearFxNow, 0);
-                    // 调用 jQuery.now 函数获取当前时间并赋值给 fxNow，同时将结果返回
-                    return (fxNow = jQuery.now());
-                }
-
-// 清除 fxNow 变量的函数
-                function clearFxNow() {
-                    // 将 fxNow 设为 undefined
-                    fxNow = undefined;
-                }
-
-// 生成创建标准动画的参数的函数
-                function genFx(type, num) {
-                    var obj = {};
-                    // 使用 jQuery.each 方法遍历 fxAttrs 数组及其中的元素
-                    jQuery.each(fxAttrs.concat.apply([], fxAttrs.slice(0, num)), function () {
-                        // 将对象的属性设置为传入的 type
-                        obj[this] = type;
-                    });
-                    // 返回生成的对象
-                    return obj;
-                }
-
-// 为自定义动画生成快捷方式
-                jQuery.each({
-                    // 生成 slideDown 动画的参数
-                    slideDown: genFx("show", 1),
-                    // 生成 slideUp 动画的参数
-                    slideUp: genFx("hide", 1),
-                    // 生成 slideToggle 动画的参数
-                    slideToggle: genFx("toggle", 1),
-                    // 生成 fadeIn 动画的参数，将 opacity 属性设置为 show
-                    fadeIn: {opacity: "show"},
-                    // 生成 fadeOut 动画的参数，将 opacity 属性设置为 hide
-                    fadeOut: {opacity: "hide"},
-                    // 生成 fadeToggle 动画的参数，将 opacity 属性设置为 toggle
-                    fadeToggle: {opacity: "toggle"}
-                }, function (name, props) {
-                    // 为 jQuery.fn 对象添加相应的方法，例如 slideDown、slideUp 等
-                    jQuery.fn[name] = function (speed, easing, callback) {
-                        // 调用 animate 方法执行动画
-                        return this.animate(props, speed, easing, callback);
-                    };
-                });
-
-                jQuery.extend({
-                    // 定义 speed 函数，用于处理动画速度相关的配置
-                    speed: function (speed, easing, fn) {
-                        // 如果 speed 是对象，则扩展一个空对象并赋值给 opt，否则根据 speed、easing 和 fn 来创建 opt 对象
-                        var opt = speed && typeof speed === "object"? jQuery.extend({}, speed) : {
-                            complete: fn ||!fn && easing ||
-                                jQuery.isFunction(speed) && speed,
-                            duration: speed,
-                            easing: fn && easing || easing &&!jQuery.isFunction(easing) && easing
-                        };
-
-                        // 如果 jQuery.fx.off 为真，则持续时间设为 0，否则根据不同情况设置持续时间
-                        opt.duration = jQuery.fx.off? 0 : typeof opt.duration === "number"? opt.duration :
-                            opt.duration in jQuery.fx.speeds? jQuery.fx.speeds[opt.duration] : jQuery.fx.speeds._default;
-
-                        // 规范化 opt.queue 的值，将 true、undefined 或 null 规范化为 "fx"
-                        if (opt.queue == null || opt.queue === true) {
-                            opt.queue = "fx";
-                        }
-
-                        // 队列操作
-                        opt.old = opt.complete;
-
-                        // 重新定义 complete 函数
-                        opt.complete = function (noUnmark) {
-                            // 如果 opt.old 是函数，调用它
-                            if (jQuery.isFunction(opt.old)) {
-                                opt.old.call(this);
-                            }
-
-                            // 如果存在队列，执行出队操作
-                            if (opt.queue) {
-                                jQuery.dequeue(this, opt.queue);
-                            } else if (noUnmark!== false) {
-                                // 否则执行 _unmark 操作
-                                jQuery._unmark(this);
-                            }
-                        };
-
-                        // 返回配置对象 opt
-                        return opt;
-                    },
-
-                    // 定义 easing 函数，包含线性和摆动的缓动函数
-                    easing: {
-                        // 线性缓动函数，直接返回输入的参数 p
-                        linear: function (p) {
-                            return p;
-                        },
-                        // 摆动缓动函数，根据输入的参数 p 进行计算
-                        swing: function (p) {
-                            return (-Math.cos(p * Math.PI) / 2) + 0.5;
-                        }
-                    },
-
-                    // 存储定时器的数组
-                    timers: [],
-
-                    // 定义 fx 函数，用于创建一个 fx 对象
-                    fx: function (elem, options, prop) {
-                        // 将传入的选项赋值给 this.options
-                        this.options = options;
-                        // 将传入的元素赋值给 this.elem
-                        this.elem = elem;
-                        // 将传入的属性赋值给 this.prop
-                        this.prop = prop;
-
-                        // 确保 options.orig 存在，如果不存在则初始化为空对象
-                        options.orig = options.orig || {};
-                    }
-                });
-
-                jQuery.fx.prototype = {
-                    // Simple function for setting a style value
-                    // 更新函数，用于更新样式的值
-                    update: function() {
-                        // 如果存在 options.step 函数，调用它并将 this.elem 和 this 作为参数传递
-                        if (this.options.step) {
-                            this.options.step.call(this.elem, this.now, this);
-                        }
-                        // 调用 jQuery.fx 中对应的 step 函数，如果没有对应属性的 step 函数，则调用默认的 step 函数
-                        (jQuery.fx.step[this.prop] || jQuery.fx.step._default)(this);
-                    },
-
-                    // Get the current size
-                    // 获取当前大小的函数
-                    cur: function() {
-                        // 如果元素的属性值不为空且元素没有样式或者元素的样式中该属性为空
-                        if (this.elem[this.prop]!= null && (!this.elem.style || this.elem.style[this.prop] == null)) {
-                            // 返回元素的该属性值
-                            return this.elem[this.prop];
-                        }
-
-                        var parsed,
-                            // 使用 jQuery.css 函数获取元素该属性的样式值
-                            r = jQuery.css(this.elem, this.prop);
-                        // Empty strings, null, undefined and "auto" are converted to 0,
-                        // complex values such as "rotate(1rad)" are returned as is,
-                        // simple values such as "10px" are parsed to Float.
-                        // 将解析后的结果存储在 parsed 中，如果解析结果是 NaN 且 r 为空或为 "auto" 则返回 0，否则返回 r，否则返回解析结果
-                        return isNaN(parsed = parseFloat(r))? (!r || r === "auto"? 0 : r) : parsed;
-                    },
-
-                    // Start an animation from one number to another
-                    // 从一个数开始到另一个数开始动画的函数
-                    custom: function(from, to, unit) {
-                        var self = this,
-                            fx = jQuery.fx;
-
-                        // 记录动画开始时间，使用 fxNow 或 createFxNow 函数获取
-                        this.startTime = fxNow || createFxNow();
-                        // 结束值设置为 to
-                        this.end = to;
-                        // 初始的当前值和起始值设置为 from
-                        this.now = this.start = from;
-                        // 设置单位，如果传入了 unit 则使用 unit，否则使用默认的单位，对于 jQuery.cssNumber 中存在的属性不使用单位，其他情况使用 "px"
-                        this.unit = unit || this.unit || (jQuery.cssNumber[this.prop]? "" : "px");
-
-                        // 定义内部函数 t，调用 self.step 函数
-                        function t(gotoEnd) {
-                            return self.step(gotoEnd);
-                        }
-
-                        // 为 t 函数添加 queue 属性，设置为 this.options.queue
-                        t.queue = this.options.queue;
-                        // 为 t 函数添加 elem 属性，设置为 this.elem
-                        t.elem = this.elem;
-                        // 为 t 函数添加 saveState 方法
-                        t.saveState = function() {
-                            // 如果元素上没有存储 "fxshow" + self.prop 数据
-                            if (jQuery._data(self.elem, "fxshow" + self.prop) === undefined) {
-                                // 如果是隐藏操作，存储起始值
-                                if (self.options.hide) {
-                                    jQuery._data(self.elem, "fxshow" + self.prop, self.start);
-                                } else if (self.options.show) {
-                                    // 如果是显示操作，存储结束值
-                                    jQuery._data(self.elem, "fxshow" + self.prop, self.end);
-                                }
-                            }
-                        };
-
-                        // 调用 t 函数，如果结果为真且将 t 函数添加到 jQuery.timers 数组中且 timerId 不存在
-                        if (t() && jQuery.timers.push(t) &&!timerId) {
-                            // 启动定时器，调用 fx.tick 函数，时间间隔为 fx.interval
-                            timerId = setInterval(fx.tick, fx.interval);
-                        }
-                    }
-                };
-
-                // Simple 'show' function
-                show: function() {
-                    // 获取元素上存储的 "fxshow" + this.prop 数据
-                    var dataShow = jQuery._data( this.elem, "fxshow" + this.prop );
-
-                    // 记住开始的状态，以便之后可以恢复，将其存储在 options.orig[this.prop] 中，如果 dataShow 存在则使用 dataShow，否则使用元素的当前属性值
-                    this.options.orig[ this.prop ] = dataShow || jQuery.style( this.elem, this.prop );
-                    // 标记为显示操作
-                    this.options.show = true;
-
-                    // 开始动画
-                    // 确保开始时使用较小的宽度/高度以避免内容闪烁
-                    if ( dataShow!== undefined ) {
-                        // 这个显示操作是从之前的隐藏或显示操作中断的地方继续
-                        this.custom( this.cur(), dataShow );
-                    } else {
-                        // 根据属性是否为宽度或高度，设置不同的起始值
-                        this.custom( this.prop === "width" || this.prop === "height"? 1 : 0, this.cur() );
-                    }
-
-                    // 首先显示元素
-                    jQuery( this.elem ).show();
-                },
-
-// 简单的 'hide' 函数
-                hide: function() {
-                    // 记住开始的状态，以便之后可以恢复，将其存储在 options.orig[this.prop] 中，如果存储的数据存在则使用存储的数据，否则使用元素的当前属性值
-                    this.options.orig[ this.prop ] = jQuery._data( this.elem, "fxshow" + this.prop ) || jQuery.style( this.elem, this.prop );
-                    // 标记为隐藏操作
-                    this.options.hide = true;
-
-                    // 开始动画
-                    this.custom( this.cur(), 0 );
-                },
-
-// 动画的每一步
-                step: function( gotoEnd ) {
-                    var p, n, complete,
-                        // 获取当前时间，若 fxNow 存在则使用 fxNow，否则调用 createFxNow 方法获取
-                        t = fxNow || createFxNow(),
-                        done = true,
-                        elem = this.elem,
-                        options = this.options;
-
-                    // 如果 gotoEnd 为真或当前时间大于等于持续时间加开始时间
-                    if ( gotoEnd || t >= options.duration + this.startTime ) {
-                        // 将 this.now 设置为结束值
-                        this.now = this.end;
-                        // 将 this.pos 和 this.state 都设置为 1
-                        this.pos = this.state = 1;
-                        // 执行更新操作
-                        this.update();
-
-                        // 标记当前属性的动画已完成
-                        options.animatedProperties[ this.prop ] = true;
-
-                        // 遍历 animatedProperties 中的每个属性
-                        for ( p in options.animatedProperties ) {
-                            // 如果该属性的动画未完成
-                            if ( options.animatedProperties[ p ]!== true ) {
-                                // 标记为未完成
-                                done = false;
-                            }
-                        }
-                    }
-                    if ( done ) {
-                        // 如果 done 为 true
-                        // 重置溢出属性
-                        if ( options.overflow!= null &&!jQuery.support.shrinkWrapBlocks ) {
-                            // 使用 jQuery.each 方法遍历数组 ["", "X", "Y"]
-                            jQuery.each( [ "", "X", "Y" ], function( index, value ) {
-                                // 将 elem 的 overflow 属性及其变体（overflowX、overflowY）设置为 options.overflow 数组中相应索引的值
-                                elem.style[ "overflow" + value ] = options.overflow[ index ];
-                            });
-                        }
-
-                        // 如果是执行了 "hide" 操作，将元素隐藏
-                        if ( options.hide ) {
-                            jQuery( elem ).hide();
-                        }
-
-                        // 如果执行了 "hide" 或 "show" 操作，重置相关属性
-                        if ( options.hide || options.show ) {
-                            // 遍历 options.animatedProperties 对象的属性
-                            for ( p in options.animatedProperties ) {
-                                // 将元素的属性 p 重置为 options.orig[p] 的值
-                                jQuery.style( elem, p, options.orig[ p ] );
-                                // 移除元素上的 "fxshow" + p 数据
-                                jQuery.removeData( elem, "fxshow" + p, true );
-                                // 移除元素上的 "toggle" + p 数据
-                                jQuery.removeData( elem, "toggle" + p, true );
-                            }
-                        }
-
-                        // 执行完成函数
-                        // 若完成函数抛出异常，确保它不会被调用两次，解决 #5684 问题
-                        complete = options.complete;
-                        if ( complete ) {
-                            // 将 options.complete 设为 false
-                            options.complete = false;
-                            // 以 elem 作为上下文调用 complete 函数
-                            complete.call( elem );
-                        }
-                    }
-
-// 返回 false
-                    return false;
-
-                } else {
-                    // 如果 duration 为 Infinity，经典的缓动效果无法使用
-                    if ( options.duration == Infinity ) {
-                        // 将 this.now 设置为 t
-                        this.now = t;
-                    } else {
-                        // 计算动画已运行的时间 n
-                        n = t - this.startTime;
-                        // 计算动画的状态（已运行时间 / 总时长）
-                        this.state = n / options.duration;
-
-                        // 执行缓动函数，默认使用 swing 函数
-                        this.pos = jQuery.easing[ options.animatedProperties[this.prop] ]( this.state, n, 0, 1, options.duration );
-                        // 计算当前的动画值
-                        this.now = this.start + ( (this.end - this.start) * this.pos );
-                    }
-                    // 执行动画的下一步更新
-                    this.update();
-                }
-
-// 返回 true
-                return true;
-
-                // 使用 jQuery.extend 方法扩展 jQuery.fx 对象
-                jQuery.extend( jQuery.fx, {
-                    // 定义 tick 函数
-                    tick: function() {
-                        // 定义 timer 变量和 timers 数组，以及索引 i 并初始化为 0
-                        var timer,
-                            timers = jQuery.timers,
-                            i = 0;
-
-                        // 遍历 timers 数组
-                        for ( ; i < timers.length; i++ ) {
-                            // 获取当前的定时器
-                            timer = timers[ i ];
-                            // 检查定时器尚未被移除，如果定时器函数的返回值为 false 且 timers[i] 仍然是当前的 timer
-                            if (!timer() && timers[ i ] === timer ) {
-                                // 从 timers 数组中移除该定时器，并将索引 i 减 1
-                                timers.splice( i--, 1 );
-                            }
-                        }
-
-                        // 如果 timers 数组的长度为 0
-                        if (!timers.length ) {
-                            // 调用 jQuery.fx.stop 方法
-                            jQuery.fx.stop();
-                        }
-                    },
-
-                    // 定义动画的时间间隔为 13 毫秒
-                    interval: 13,
-
-                    // 定义 stop 函数
-                    stop: function() {
-                        // 清除定时器
-                        clearInterval( timerId );
-                        // 将 timerId 设为 null
-                        timerId = null;
-                    },
-
-                    // 定义速度对象，包含 slow、fast 和默认速度
-                    speeds: {
-                        slow: 600,
-                        fast: 200,
-                        // 默认速度为 400 毫秒
-                        _default: 400
-                    },
-
-                    // 定义 step 对象，包含不同动画效果的处理函数
-                    step: {
-                        // 处理透明度的动画函数
-                        opacity: function( fx ) {
-                            // 使用 jQuery.style 方法设置元素的透明度为 fx.now 的值
-                            jQuery.style( fx.elem, "opacity", fx.now );
-                        },
-
-                        // 默认的动画处理函数
-                        _default: function( fx ) {
-                            // 如果元素的样式存在且元素的样式属性存在
-                            if ( fx.elem.style && fx.elem.style[ fx.prop ]!= null ) {
-                                // 设置元素的样式属性值为 fx.now + fx.unit
-                                fx.elem.style[ fx.prop ] = fx.now + fx.unit;
-                            } else {
-                                // 否则设置元素的属性值为 fx.now
-                                fx.elem[ fx.prop ] = fx.now;
-                            }
-                        }
-                    }
-                });
-
-// Ensure props that can't be negative don't go there on undershoot easing
-                jQuery.each( fxAttrs.concat.apply( [], fxAttrs ), function( i, prop ) {
-                    // exclude marginTop, marginLeft, marginBottom and marginRight from this list
-                    if ( prop.indexOf( "margin" ) ) {
-                        jQuery.fx.step[ prop ] = function( fx ) {
-                            jQuery.style( fx.elem, prop, Math.max(0, fx.now) + fx.unit );
-                        };
-                    }
-                });
-
-                if ( jQuery.expr && jQuery.expr.filters ) {
-                    jQuery.expr.filters.animated = function( elem ) {
-                        return jQuery.grep(jQuery.timers, function( fn ) {
-                            return elem === fn.elem;
-                        }).length;
-                    };
-                }
-
-// Try to restore the default display value of an element
-                function defaultDisplay(nodeName) {
-                    // 检查 elemdisplay 中是否不存在以 nodeName 为键的值
-                    if (!elemdisplay[nodeName]) {
-                        // 获取文档的 body 元素
-                        var body = document.body,
-                            // 创建一个 jQuery 对象，元素为 <nodeName> 并添加到 body 中
-                            elem = jQuery("<" + nodeName + ">").appendTo(body),
-                            // 获取元素的 display 样式
-                            display = elem.css("display");
-                        // 移除该元素
-                        elem.remove();
-
-                        // 如果简单的方式失败，通过将元素附加到临时 iframe 来获取元素真正的默认显示
-                        if (display === "none" || display === "") {
-                            // 如果还没有 iframe，创建一个 iframe 元素
-                            if (!iframe) {
-                                iframe = document.createElement("iframe");
-                                // 设置 iframe 的 frameBorder、width 和 height 为 0
-                                iframe.frameBorder = iframe.width = iframe.height = 0;
-                            }
-
-                            // 将 iframe 添加到 body 中
-                            body.appendChild(iframe);
-
-                            // 在第一次调用时创建可缓存的 iframe 文档副本
-                            // IE 和 Opera 允许我们重用 iframeDoc 而无需重写假 HTML 文档；WebKit 和 Firefox 不允许重用 iframe 文档
-                            if (!iframeDoc ||!iframe.createElement) {
-                                // 获取 iframe 的文档对象
-                                iframeDoc = (iframe.contentWindow || iframe.contentDocument).document;
-                                // 向 iframe 文档中写入 HTML 内容
-                                iframeDoc.write((jQuery.support.boxModel? "<!doctype html>" : "") + "<html><body>");
-                                // 关闭 iframe 文档的写入操作
-                                iframeDoc.close();
-                            }
-
-                            // 在 iframe 文档中创建元素
-                            elem = iframeDoc.createElement(nodeName);
-
-                            // 将元素添加到 iframe 文档的 body 中
-                            iframeDoc.body.appendChild(elem);
-
-                            // 获取元素的 display 样式
-                            display = jQuery.css(elem, "display");
-                            // 从 body 中移除 iframe
-                            body.removeChild(iframe);
-                        }
-
-                        // 存储正确的默认显示
-                        elemdisplay[nodeName] = display;
-                    }
-
-                    // 返回 elemdisplay 中存储的元素的默认显示
-                    return elemdisplay[nodeName];
-                }
-
-
-
-                // 定义变量 getOffset，rtable 是一个正则表达式，用于匹配以 t 开头，后面跟 able、d 或 h 的字符串，不区分大小写
-                var getOffset,
-                    rtable = /^t(?:able|d|h)$/i,
-                    // rroot 是一个正则表达式，用于匹配 body 或 html 字符串，不区分大小写
-                    rroot = /^(?:body|html)$/i;
-
-// 检查 document.documentElement 是否有 getBoundingClientRect 方法
-                if ("getBoundingClientRect" in document.documentElement) {
-                    // 定义 getOffset 函数，接收 elem, doc, docElem, box 作为参数
-                    getOffset = function (elem, doc, docElem, box) {
-                        try {
-                            // 尝试获取元素的边界矩形信息
-                            box = elem.getBoundingClientRect();
-                        } catch (e) {}
-
-                        // 确保元素不是一个断开连接的 DOM 节点
-                        if (!box ||!jQuery.contains(docElem, elem)) {
-                            // 如果 box 存在则返回包含 top 和 left 的对象，否则返回 top 和 left 为 0 的对象
-                            return box? { top: box.top, left: box.left } : { top: 0, left: 0 };
-                        }
-
-                        // 获取 body 元素
-                        var body = doc.body,
-                            // 获取窗口对象
-                            win = getWindow(doc),
-                            // 获取 docElem 的 clientTop 或 body 的 clientTop，若都没有则为 0
-                            clientTop = docElem.clientTop || body.clientTop || 0,
-                            // 获取 docElem 的 clientLeft 或 body 的 clientLeft，若都没有则为 0
-                            clientLeft = docElem.clientLeft || body.clientLeft || 0,
-                            // 获取页面垂直滚动距离
-                            scrollTop = win.pageYOffset || jQuery.support.boxModel && docElem.scrollTop || body.scrollTop,
-                            // 获取页面水平滚动距离
-                            scrollLeft = win.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft,
-                            // 计算元素的 top 位置
-                            top = box.top + scrollTop - clientTop,
-                            // 计算元素的 left 位置
-                            left = box.left + scrollLeft - clientLeft;
-
-                        // 返回包含元素最终计算得到的 top 和 left 位置的对象
-                        return { top: top, left: left };
-                    };
-
-                } else {
-                    // 定义 getOffset 函数，接收 elem, doc, docElem 作为参数
-                    getOffset = function (elem, doc, docElem) {
-                        var computedStyle,
-                            // 获取元素的 offsetParent
-                            offsetParent = elem.offsetParent,
-                            // 存储上一个 offsetParent
-                            prevOffsetParent = elem,
-                            // 获取 body 元素
-                            body = doc.body,
-                            // 获取文档的默认视图
-                            defaultView = doc.defaultView,
-                            // 获取元素的计算样式
-                            prevComputedStyle = defaultView? defaultView.getComputedStyle(elem, null) : elem.currentStyle,
-                            // 获取元素的垂直偏移量
-                            top = elem.offsetTop,
-                            // 获取元素的水平偏移量
-                            left = elem.offsetLeft;
-
-                        // 循环，从元素的父节点开始，直到 body 或 docElem 为止
-                        while ((elem = elem.parentNode) && elem!== body && elem!== docElem) {
-                            // 如果 jQuery 支持 fixedPosition 且元素的位置是 fixed，则跳出循环
-                            if (jQuery.support.fixedPosition && prevComputedStyle.position === "fixed") {
-                                break;
-                            }
-
-                            // 获取元素父节点的计算样式
-                            computedStyle = defaultView? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
-                            // 从元素的垂直偏移量中减去父节点的滚动距离
-                            top -= elem.scrollTop;
-                            // 从元素的水平偏移量中减去父节点的滚动距离
-                            left -= elem.scrollLeft;
-
-                            // 如果当前节点是元素的 offsetParent
-                            if (elem === offsetParent) {
-                                // 加上父节点的垂直偏移量
-                                top += elem.offsetTop;
-                                // 加上父节点的水平偏移量
-                                left += elem.offsetLeft;
-
-                                // 如果 jQuery 不添加边框且元素不是 table 或其单元格
-                                if (jQuery.support.doesNotAddBorder &&!(jQuery.support.doesAddBorderForTableAndCells && rtable.test(elem.nodeName))) {
-                                    // 加上父节点的上边框宽度
-                                    top += parseFloat(computedStyle.borderTopWidth) || 0;
-                                    // 加上父节点的左边框宽度
-                                    left += parseFloat(computedStyle.borderLeftWidth) || 0;
-                                }
-
-                                // 更新 prevOffsetParent
-                                prevOffsetParent = offsetParent;
-                                // 更新 offsetParent
-                                offsetParent = elem.offsetParent;
-                            }
-
-
-                            // 如果 jQuery 支持减去不可见溢出元素的边框且元素的 overflow 不是 visible
-                            if (jQuery.support.subtractsBorderForOverflowNotVisible && computedStyle.overflow!== "visible") {
-                                // 加上父节点的上边框宽度
-                                top += parseFloat(computedStyle.borderTopWidth) || 0;
-                                // 加上父节点的左边框宽度
-                                left += parseFloat(computedStyle.borderLeftWidth) || 0;
-                            }
-
-                            // 更新 prevComputedStyle
-                            prevComputedStyle = computedStyle;
-                        }
-
-                        // 如果元素的位置是 relative 或 static
-                        if (prevComputedStyle.position === "relative" || prevComputedStyle.position === "static") {
-                            // 加上 body 的垂直偏移量
-                            top += body.offsetTop;
-                            // 加上 body 的水平偏移量
-                            left += body.offsetLeft;
-                        }
-
-                        // 如果 jQuery 支持 fixedPosition 且元素的位置是 fixed
-                        if (jQuery.support.fixedPosition && prevComputedStyle.position === "fixed") {
-                            // 加上 docElem 或 body 的垂直滚动距离
-                            top += Math.max(docElem.scrollTop, body.scrollTop);
-                            // 加上 docElem 或 body 的水平滚动距离
-                            left += Math.max(docElem.scrollLeft, body.scrollLeft);
-                        }
-
-                        // 返回包含元素最终计算得到的 top 和 left 位置的对象
-                        return { top: top, left: left };
-                    };
-                }
-                // 重写jQuery的fn.offset方法，允许对jQuery对象进行偏移量设置或获取
-                jQuery.fn.offset = function( options ) {
-                    // 判断是否有传入参数，即是否要设置偏移量
-                    if ( arguments.length ) {
-                        // 如果没有传入具体的options参数，即options为undefined，则直接返回当前jQuery对象
-                        return options === undefined ?
-                            this :
-                            // 如果有传入参数，则对每个匹配的元素调用jQuery.offset.setOffset方法设置偏移量
-                            this.each(function( i ) {
-                                jQuery.offset.setOffset( this, options, i );
-                            });
-                    }
-
-                    // 获取当前jQuery对象集合中的第一个元素
-                    var elem = this[0],
-                        // 获取该元素的所属文档对象
-                        doc = elem && elem.ownerDocument;
-
-                    // 如果没有文档对象，说明元素不存在或不是一个DOM元素，返回null
-                    if ( !doc ) {
-                        return null;
-                    }
-
-                    // 如果元素是文档的body元素，则调用jQuery.offset.bodyOffset方法获取body的偏移量
-                    if ( elem === doc.body ) {
-                        return jQuery.offset.bodyOffset( elem );
-                    }
-
-                    // 对于非body元素，调用getOffset函数获取元素的偏移量
-                    // getOffset函数需要传入元素本身、文档对象和文档的documentElement（即html元素）
-                    return getOffset( elem, doc, doc.documentElement );
-                };
-                jQuery.offset = {
-                    // 定义一个对象jQuery.offset，用于处理元素偏移量的相关操作
-
-                    bodyOffset: function( body ) {
-                        // 定义一个方法bodyOffset，用于获取body元素的偏移量
-                        var top = body.offsetTop,
-                            // 获取body元素顶部的偏移量
-                            left = body.offsetLeft;
-                        // 获取body元素左边的偏移量
-
-                        if ( jQuery.support.doesNotIncludeMarginInBodyOffset ) {
-                            // 如果浏览器不支持在body偏移量中包含边距
-                            top  += parseFloat( jQuery.css(body, "marginTop") ) || 0;
-                            // 加上body元素顶部的外边距
-                            left += parseFloat( jQuery.css(body, "marginLeft") ) || 0;
-                            // 加上body元素左边的外边距
-                        }
-
-                        return { top: top, left: left };
-                        // 返回body元素的偏移量对象
-                    },
-
-
-                    setOffset: function( elem, options, i ) {
-                        // 定义一个方法setOffset，用于设置元素的偏移量
-                        var position = jQuery.css( elem, "position" );
-                        // 获取元素的定位方式
-
-                        // set position first, in-case top/left are set even on static elem
-                        // 如果元素是static定位，先将其设置为relative定位，以防top/left属性被设置
-                        if ( position === "static" ) {
-                            elem.style.position = "relative";
-                        }
-
-                        var curElem = jQuery( elem ),
-                            // 将元素转换为jQuery对象
-                            curOffset = curElem.offset(),
-                            // 获取元素当前的偏移量
-                            curCSSTop = jQuery.css( elem, "top" ),
-                            // 获取元素当前的top样式值
-                            curCSSLeft = jQuery.css( elem, "left" ),
-                            // 获取元素当前的left样式值
-                            calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1, // 判断是否需要计算位置，如果元素是绝对定位或固定定位，并且top或left中有auto值
-                            props = {}, curPosition = {}, curTop, curLeft;
-                        // 初始化变量
-
-                        // need to be able to calculate position if either top or left is auto and position is either absolute or fixed // 如果需要计算位置，则获取元素的当前位置（相对于定位父元素）
-                        if ( calculatePosition ) {
-                            curPosition = curElem.position();
-                            // 调用position方法获取元素的位置
-                            curTop = curPosition.top;
-                            // 获取元素顶部的位置
-                            curLeft = curPosition.left;
-                            // 获取元素左边的位置
-                        } else {
-                            curTop = parseFloat( curCSSTop ) || 0;
-                            // 否则，将top样式值转换为数字，如果没有则默认为0
-                            curLeft = parseFloat( curCSSLeft ) || 0;
-                            // 将left样式值转换为数字，如果没有则默认为0
-                        }
-
-                        if ( jQuery.isFunction( options ) ) {
-                            // 如果options是一个函数
-                            options = options.call( elem, i, curOffset );
-                            // 调用该函数，并将当前元素、索引和当前偏移量作为参数传入，返回的结果作为新的options
-                        }
-
-                        if ( options.top != null ) {
-                            // 如果options中包含top属性
-                            props.top = ( options.top - curOffset.top ) + curTop;
-                            // 计算新的top值，并设置到props对象中
-                        }
-                        if ( options.left != null ) {
-                            // 如果options中包含left属性
-                            props.left = ( options.left - curOffset.left ) + curLeft;
-                            // 计算新的left值，并设置到props对象中
-                        }
-
-                        if ( "using" in options ) {
-                            // 如果options中包含using属性（一个函数，用于应用样式）
-                            options.using.call( elem, props );
-                            // 调用该函数，并将当前元素和计算好的样式属性作为参数传入
-                        } else {
-                            curElem.css( props );
-                            // 否则，直接使用css方法将计算好的样式属性应用到元素上
-                        }
-                    }
-                };
-
-                jQuery.fn.extend({
-                    // 扩展jQuery的原型对象，添加新的方法
-
-                    position: function() {
-                        // 定义一个position方法，用于获取元素相对于其定位父元素的位置
-                        if ( !this[0] ) {
-                            // 如果jQuery对象不包含任何元素，则直接返回null
-                            return null;
-                        }
-
-                        var elem = this[0],
-                            // 获取jQuery对象中的第一个DOM元素
-
-                            // Get *real* offsetParent
-                            // 获取元素真正的定位父元素
-                            offsetParent = this.offsetParent(),
-
-                            // Get correct offsets
-                            // 获取元素正确的偏移量
-                            offset       = this.offset(),
-                            // 调用offset方法获取元素相对于文档的位置
-                            parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
-                        // 如果定位父元素是根元素（如html或body），则偏移量为{top:0, left:0}，否则调用offset方法获取父元素的偏移量
-
-                        // Subtract element margins
-                        // 减去元素的边距
-                        // note: when an element has margin: auto the offsetLeft and marginLeft
-                        // are the same in Safari causing offset.left to incorrectly be 0
-                        offset.top  -= parseFloat( jQuery.css(elem, "marginTop") ) || 0;
-                        // 减去元素顶部的外边距
-                        offset.left -= parseFloat( jQuery.css(elem, "marginLeft") ) || 0;
-                        // 减去元素左边的外边距
-
-                        // Add offsetParent borders
-                        // 加上定位父元素的边框宽度
-                        parentOffset.top  += parseFloat( jQuery.css(offsetParent[0], "borderTopWidth") ) || 0;
-                        // 加上父元素顶部的边框宽度
-                        parentOffset.left += parseFloat( jQuery.css(offsetParent[0], "borderLeftWidth") ) || 0;
-                        // 加上父元素左边的边框宽度
-
-                        // Subtract the two offsets
-                        // 计算两个偏移量的差值，得到元素相对于定位父元素的位置
-                        return {
-                            top:  offset.top  - parentOffset.top,
-                            left: offset.left - parentOffset.left
-                        };
-                    },
-
-                    offsetParent: function() {
-                        // 定义一个offsetParent方法，用于获取元素的定位父元素
-                        return this.map(function() {
-                            // 使用map方法遍历jQuery对象中的每个元素
-                            var offsetParent = this.offsetParent || document.body;
-                            // 初始定位父元素为元素的offsetParent属性，如果没有则默认为document.body
-                            while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
-                                // 循环判断定位父元素，直到找到非static定位的元素或者到达根元素（如html或body）
-                                offsetParent = offsetParent.offsetParent;
-                                // 继续向上查找定位父元素
-                            }
-                            return offsetParent;
-                            // 返回最终的定位父元素
-                        });
-                    }
-                });
-// Create scrollLeft and scrollTop methods
-                jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
-                    // 对一个包含scrollLeft和scrollTop的对象进行遍历
-                    var top = /Y/.test( prop );
-                    // 判断属性名中是否包含'Y'，以区分scrollTop和scrollLeft
-
-                    jQuery.fn[ method ] = function( val ) {
-                        // 为jQuery的原型对象添加scrollLeft和scrollTop方法
-                        return jQuery.access( this, function( elem, method, val ) {
-                            // 调用jQuery的access方法处理元素
-                            var win = getWindow( elem );
-                            // 获取元素对应的窗口对象
-
-                            if ( val === undefined ) {
-                                // 如果没有传入值val
-                                return win ? (prop in win) ? win[ prop ] :
-                                        // 如果窗口对象存在且属性存在于窗口对象中，则直接返回窗口对象的属性值
-                                        jQuery.support.boxModel && win.document.documentElement[ method ] ||
-                                        // 否则，如果支持boxModel，则尝试获取documentElement的属性值
-                                        win.document.body[ method ] :
-                                    // 如果上述都不成立，则尝试获取body的属性值
-                                    elem[ method ]; // 如果元素不是窗口对象，则直接返回元素的属性值
-                            }
-
-                            if ( win ) {
-                                // 如果元素是窗口对象
-                                win.scrollTo(
-                                    !top ? val : jQuery( win ).scrollLeft(),
-                                    // 根据top的值决定是设置scrollLeft还是保持原来的scrollLeft值
-                                    top ? val : jQuery( win ).scrollTop()
-                                    // 根据top的值决定是设置scrollTop还是保持原来的scrollTop值
-                                );
-
-                            } else {
-                                // 如果元素不是窗口对象
-                                elem[ method ] = val;
-                                // 直接设置元素的属性值
-                            }
-                        }, method, val, arguments.length, null );
-                        // 调用jQuery.access方法并传入相关参数
-                    };
-                });
-
-                function getWindow( elem ) {
-                    // 定义一个函数，用于获取元素对应的窗口对象
-                    return jQuery.isWindow( elem ) ?
-                        // 如果元素是窗口对象
-                        elem :
-                        // 直接返回元素
-                        elem.nodeType === 9 ?
-                            // 如果元素的nodeType是9（即document节点）
-                            elem.defaultView || elem.parentWindow :
-                            // 返回document的defaultView或parentWindow
-                            false;
-                    // 如果以上条件都不满足，则返回false
-                }
-
-
-
-// Create width, height, innerHeight, innerWidth, outerHeight and outerWidth methods
-                jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-                    // 为高度和宽度创建相关方法
-                    var clientProp = "client" + name,
-                        // 客户端属性，如clientHeight或clientWidth
-                        scrollProp = "scroll" + name,
-                        // 滚动属性，如scrollHeight或scrollWidth
-                        offsetProp = "offset" + name;
-                    // 偏移属性，如offsetHeight或offsetWidth
-
-                    // innerHeight and innerWidth
-                    jQuery.fn[ "inner" + name ] = function() {
-                        // 定义innerHeight和innerWidth方法
-                        var elem = this[0];
-                        // 获取第一个元素
-                        return elem ? // 如果元素存在
-                            elem.style ?
-                                // 如果元素有样式
-                                parseFloat( jQuery.css( elem, type, "padding" ) ) :
-                                // 返回元素的内边距大小（解析为浮点数）
-                                this[ type ]() :
-                            // 否则返回元素的宽度或高度
-                            null; // 如果元素不存在，返回null
-                    };
-
-                    // outerHeight and outerWidth
-                    jQuery.fn[ "outer" + name ] = function( margin ) {
-                        // 定义outerHeight和outerWidth方法
-                        var elem = this[0];
-                        // 获取第一个元素
-                        return elem ?
-                            // 如果元素存在
-                            elem.style ?
-                                // 如果元素有样式
-                                parseFloat( jQuery.css( elem, type, margin ? "margin" : "border" ) ) :
-                                // 根据margin参数返回元素的外边距或边框大小（解析为浮点数）
-                                this[ type ]() :
-                            // 否则返回元素的宽度或高度
-                            null;
-                        // 如果元素不存在，返回null
-                    };
-
-                    jQuery.fn[ type ] = function( value ) {
-                        // 定义width和height方法
-                        return jQuery.access( this, function( elem, type, value ) {
-                            // 使用jQuery.access方法处理
-                            var doc, docElemProp, orig, ret;
-                            // 声明变量
-
-                            if ( jQuery.isWindow( elem ) ) {
-                                // 如果元素是一个窗口对象
-                                // 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat
-                                doc = elem.document; // 获取文档的引用
-                                docElemProp = doc.documentElement[ clientProp ];
-                                // 获取文档元素的客户端属性
-                                return jQuery.support.boxModel && docElemProp ||
-                                    // 如果支持盒子模型，则返回文档元素的客户端属性
-                                    doc.body && doc.body[ clientProp ] || docElemProp;
-                                // 否则返回body的客户端属性或文档元素的客户端属性
-                            }
-
-                            // Get document width or height
-                            if ( elem.nodeType === 9 ) { // 如果元素是一个文档对象（nodeType为9）
-                                // Either scroll[Width/Height] or offset[Width/Height], whichever is greater
-                                doc = elem.documentElement; // 获取文档元素的引用
-
-                                // when a window > document, IE6 reports a offset[Width/Height] > client[Width/Height]
-                                // so we can't use max, as it'll choose the incorrect offset[Width/Height]
-                                // instead we use the correct client[Width/Height]
-                                // support:IE6
-                                if ( doc[ clientProp ] >= doc[ scrollProp ] ) {
-                                    // 如果客户端属性大于等于滚动属性
-                                    return doc[ clientProp ];
-                                    // 返回客户端属性
-                                }
-
-                                return Math.max(
-                                    // 返回滚动属性、偏移属性和它们之间的最大值
-                                    elem.body[ scrollProp ], doc[ scrollProp ],
-                                    elem.body[ offsetProp ], doc[ offsetProp ]
-                                );
-                            }
-
-                            // Get width or height on the element
-                            if ( value === undefined ) { // 如果没有指定值
-                                orig = jQuery.css( elem, type ); // 获取元素的CSS样式
-                                ret = parseFloat( orig ); // 解析为浮点数
-                                return jQuery.isNumeric( ret ) ? ret : orig; // 如果解析成功则返回浮点数，否则返回原始样式字符串
-                            }
-
-                            // Set the width or height on the element
-                            jQuery( elem ).css( type, value ); // 设置元素的CSS样式
-                        }, type, value, arguments.length, null ); // 调用jQuery.access方法，传入相关参数
-                    };
-                });
-
-
-
-// Expose jQuery to the global object
-                window.jQuery = window.$ = jQuery;
-// 将jQuery暴露给全局对象
-
-// Expose jQuery as an AMD module, but only for AMD loaders that
-// understand the issues with loading multiple versions of jQuery
-// in a page that all might call define(). The loader will indicate
-// they have special allowances for multiple jQuery versions by
-// specifying define.amd.jQuery = true. Register as a named module,
-// since jQuery can be concatenated with other files that may use define,
-// but not use a proper concatenation script that understands anonymous
-// AMD modules. A named AMD is safest and most robust way to register.
-// Lowercase jquery is used because AMD module names are derived from
-// file names, and jQuery is normally delivered in a lowercase file name.
-// Do this after creating the global so that if an AMD module wants to call
-// noConflict to hide this version of jQuery, it will work.
-                if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
-                    // 如果define是一个函数，且AMD加载器支持多个版本的jQuery
-                    define( "jquery", [], function () { return jQuery; } );
-                    // 将jQuery注册为一个命名AMD模块
-                }
-
-
-// 立即执行函数，将window作为参数传入
-            })( window );
-                /*!
- * jQuery JavaScript Library v1.7.2
- * http://jquery.com/
- *
- * Copyright 2011, John Resig
- * Dual licensed under the MIT or GPL Version 2 licenses.
- * http://jquery.org/license
- *
- * Includes Sizzle.js
- * http://sizzlejs.com/
- * Copyright 2011, The Dojo Foundation
- * Released under the MIT, BSD, and GPL Licenses.
- *
- * Date: Wed Mar 21 12:46:34 2012 -0700
- */
-                (function( window, undefined ) {
-
-// Use the correct document accordingly with window argument (sandbox)
-                    var document = window.document,
-                        navigator = window.navigator,
-                        location = window.location;
-                    var jQuery = (function() {
-
-// Define a local copy of jQuery
-                        var jQuery = function( selector, context ) {
-                                // The jQuery object is actually just the init constructor 'enhanced'
-                                return new jQuery.fn.init( selector, context, rootjQuery );
-                            },
-
-                            // Map over jQuery in case of overwrite
-                            _jQuery = window.jQuery,
-
-                            // Map over the $ in case of overwrite
-                            _$ = window.$,
-
-                            // A central reference to the root jQuery(document)
-                            rootjQuery,
-
-                            // A simple way to check for HTML strings or ID strings
-                            // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-                            quickExpr = /^(?:[^#<]*(<[\w\W]+>)[^>]*$|#([\w\-]*)$)/,
-
-                            // Check if a string has a non-whitespace character in it
-                            rnotwhite = /\S/,
-
-                            // Used for trimming whitespace
-                            trimLeft = /^\s+/,
-                            trimRight = /\s+$/,
-
-                            // Match a standalone tag
-                            rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
-
-                            // JSON RegExp
-                            rvalidchars = /^[\],:{}\s]*$/,
-                            rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
-                            rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
-                            rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
-
-                            // Useragent RegExp
-                            rwebkit = /(webkit)[ \/]([\w.]+)/,
-                            ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
-                            rmsie = /(msie) ([\w.]+)/,
-                            rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
-
-                            // Matches dashed string for camelizing
-                            rdashAlpha = /-([a-z]|[0-9])/ig,
-                            rmsPrefix = /^-ms-/,
-
-                            // Used by jQuery.camelCase as callback to replace()
-                            fcamelCase = function( all, letter ) {
-                                return ( letter + "" ).toUpperCase();
-                            },
-
-                            // Keep a UserAgent string for use with jQuery.browser
-                            userAgent = navigator.userAgent,
-
-                            // For matching the engine and version of the browser
-                            browserMatch,
-
-                            // The deferred used on DOM ready
-                            readyList,
-
-                            // The ready event handler
-                            DOMContentLoaded,
-
-                            // Save a reference to some core methods
-                            toString = Object.prototype.toString,
-                            hasOwn = Object.prototype.hasOwnProperty,
-                            push = Array.prototype.push,
-                            slice = Array.prototype.slice,
-                            trim = String.prototype.trim,
-                            indexOf = Array.prototype.indexOf,
-
-                            // [[Class]] -> type pairs
-                            class2type = {};
-
-                        jQuery.fn = jQuery.prototype = {
-                            constructor: jQuery,
-                            init: function( selector, context, rootjQuery ) {
-                                var match, elem, ret, doc;
-
-                                // Handle $(""), $(null), or $(undefined)
-                                if ( !selector ) {
-                                    return this;
-                                }
-
-                                // Handle $(DOMElement)
-                                if ( selector.nodeType ) {
-                                    this.context = this[0] = selector;
-                                    this.length = 1;
-                                    return this;
-                                }
-
-                                // The body element only exists once, optimize finding it
-                                if ( selector === "body" && !context && document.body ) {
-                                    this.context = document;
-                                    this[0] = document.body;
-                                    this.selector = selector;
-                                    this.length = 1;
-                                    return this;
-                                }
-
-                                // Handle HTML strings
-                                if ( typeof selector === "string" ) {
-                                    // Are we dealing with HTML string or an ID?
-                                    if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
-                                        // Assume that strings that start and end with <> are HTML and skip the regex check
-                                        match = [ null, selector, null ];
-
-                                    } else {
-                                        match = quickExpr.exec( selector );
-                                    }
-
-                                    // Verify a match, and that no context was specified for #id
-                                    if ( match && (match[1] || !context) ) {
-
-                                        // HANDLE: $(html) -> $(array)
-                                        if ( match[1] ) {
-                                            context = context instanceof jQuery ? context[0] : context;
-                                            doc = ( context ? context.ownerDocument || context : document );
-
-                                            // If a single string is passed in and it's a single tag
-                                            // just do a createElement and skip the rest
-                                            ret = rsingleTag.exec( selector );
-
-                                            if ( ret ) {
-                                                if ( jQuery.isPlainObject( context ) ) {
-                                                    selector = [ document.createElement( ret[1] ) ];
-                                                    jQuery.fn.attr.call( selector, context, true );
-
-                                                } else {
-                                                    selector = [ doc.createElement( ret[1] ) ];
-                                                }
-
-                                            } else {
-                                                ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
-                                                selector = ( ret.cacheable ? jQuery.clone(ret.fragment) : ret.fragment ).childNodes;
-                                            }
-
-                                            return jQuery.merge( this, selector );
-
-                                            // HANDLE: $("#id")
-                                        } else {
-                                            elem = document.getElementById( match[2] );
-
-                                            // Check parentNode to catch when Blackberry 4.6 returns
-                                            // nodes that are no longer in the document #6963
-                                            if ( elem && elem.parentNode ) {
-                                                // Handle the case where IE and Opera return items
-                                                // by name instead of ID
-                                                if ( elem.id !== match[2] ) {
-                                                    return rootjQuery.find( selector );
-                                                }
-
-                                                // Otherwise, we inject the element directly into the jQuery object
-                                                this.length = 1;
-                                                this[0] = elem;
-                                            }
-
-                                            this.context = document;
-                                            this.selector = selector;
-                                            return this;
-                                        }
-
-                                        // HANDLE: $(expr, $(...))
-                                    } else if ( !context || context.jquery ) {
-                                        return ( context || rootjQuery ).find( selector );
-
-                                        // HANDLE: $(expr, context)
-                                        // (which is just equivalent to: $(context).find(expr)
-                                    } else {
-                                        return this.constructor( context ).find( selector );
-                                    }
-
-                                    // HANDLE: $(function)
-                                    // Shortcut for document ready
-                                } else if ( jQuery.isFunction( selector ) ) {
-                                    return rootjQuery.ready( selector );
-                                }
-
-                                if ( selector.selector !== undefined ) {
-                                    this.selector = selector.selector;
-                                    this.context = selector.context;
-                                }
-
-                                return jQuery.makeArray( selector, this );
-                            },
-
-                            // Start with an empty selector
-                            selector: "",
-
-                            // The current version of jQuery being used
-                            jquery: "1.7.2",
-
-                            // The default length of a jQuery object is 0
-                            length: 0,
-
-                            // The number of elements contained in the matched element set
-                            size: function() {
-                                return this.length;
-                            },
-
-                            toArray: function() {
-                                return slice.call( this, 0 );
-                            },
-
-                            // Get the Nth element in the matched element set OR
-                            // Get the whole matched element set as a clean array
-                            get: function( num ) {
-                                return num == null ?
-
-                                    // Return a 'clean' array
-                                    this.toArray() :
-
-                                    // Return just the object
-                                    ( num < 0 ? this[ this.length + num ] : this[ num ] );
-                            },
-
-                            // Take an array of elements and push it onto the stack
-                            // (returning the new matched element set)
-                            pushStack: function( elems, name, selector ) {
-                                // Build a new jQuery matched element set
-                                var ret = this.constructor();
-
-                                if ( jQuery.isArray( elems ) ) {
-                                    push.apply( ret, elems );
-
-                                } else {
-                                    jQuery.merge( ret, elems );
-                                }
-
-                                // Add the old object onto the stack (as a reference)
-                                ret.prevObject = this;
-
-                                ret.context = this.context;
-
-                                if ( name === "find" ) {
-                                    ret.selector = this.selector + ( this.selector ? " " : "" ) + selector;
-                                } else if ( name ) {
-                                    ret.selector = this.selector + "." + name + "(" + selector + ")";
-                                }
-
-                                // Return the newly-formed element set
-                                return ret;
-                            },
-
-                            // Execute a callback for every element in the matched set.
-                            // (You can seed the arguments with an array of args, but this is
-                            // only used internally.)
-                            each: function( callback, args ) {
-                                return jQuery.each( this, callback, args );
-                            },
-
-                            ready: function( fn ) {
-                                // Attach the listeners
-                                jQuery.bindReady();
-
-                                // Add the callback
-                                readyList.add( fn );
-
-                                return this;
-                            },
-
-                            eq: function( i ) {
-                                i = +i;
-                                return i === -1 ?
-                                    this.slice( i ) :
-                                    this.slice( i, i + 1 );
-                            },
-
-                            first: function() {
-                                return this.eq( 0 );
-                            },
-
-                            last: function() {
-                                return this.eq( -1 );
-                            },
-
-                            slice: function() {
-                                return this.pushStack( slice.apply( this, arguments ),
-                                    "slice", slice.call(arguments).join(",") );
-                            },
-
-                            map: function( callback ) {
-                                return this.pushStack( jQuery.map(this, function( elem, i ) {
-                                    return callback.call( elem, i, elem );
-                                }));
-                            },
-
-                            end: function() {
-                                return this.prevObject || this.constructor(null);
-                            },
-
-                            // For internal use only.
-                            // Behaves like an Array's method, not like a jQuery method.
-                            push: push,
-                            sort: [].sort,
-                            splice: [].splice
-                        };
-
-// Give the init function the jQuery prototype for later instantiation
-                        jQuery.fn.init.prototype = jQuery.fn;
-
-                        jQuery.extend = jQuery.fn.extend = function() {
-                            var options, name, src, copy, copyIsArray, clone,
-                                target = arguments[0] || {},
-                                i = 1,
-                                length = arguments.length,
-                                deep = false;
-
-                            // Handle a deep copy situation
-                            if ( typeof target === "boolean" ) {
-                                deep = target;
-                                target = arguments[1] || {};
-                                // skip the boolean and the target
-                                i = 2;
-                            }
-
-                            // Handle case when target is a string or something (possible in deep copy)
-                            if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-                                target = {};
-                            }
-
-                            // extend jQuery itself if only one argument is passed
-                            if ( length === i ) {
-                                target = this;
-                                --i;
-                            }
-
-                            for ( ; i < length; i++ ) {
-                                // Only deal with non-null/undefined values
-                                if ( (options = arguments[ i ]) != null ) {
-                                    // Extend the base object
-                                    for ( name in options ) {
-                                        src = target[ name ];
-                                        copy = options[ name ];
-
-                                        // Prevent never-ending loop
-                                        if ( target === copy ) {
-                                            continue;
-                                        }
-
-                                        // Recurse if we're merging plain objects or arrays
-                                        if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
-                                            if ( copyIsArray ) {
-                                                copyIsArray = false;
-                                                clone = src && jQuery.isArray(src) ? src : [];
-
-                                            } else {
-                                                clone = src && jQuery.isPlainObject(src) ? src : {};
-                                            }
-
-                                            // Never move original objects, clone them
-                                            target[ name ] = jQuery.extend( deep, clone, copy );
-
-                                            // Don't bring in undefined values
-                                        } else if ( copy !== undefined ) {
-                                            target[ name ] = copy;
-                                        }
-                                    }
-                                }
-                            }
-
-                            // Return the modified object
-                            return target;
-                        };
-
-                        jQuery.extend({
-                            noConflict: function( deep ) {
-                                if ( window.$ === jQuery ) {
-                                    window.$ = _$;
-                                }
-
-                                if ( deep && window.jQuery === jQuery ) {
-                                    window.jQuery = _jQuery;
-                                }
-
-                                return jQuery;
-                            },
-
-                            // Is the DOM ready to be used? Set to true once it occurs.
-                            isReady: false,
-
-                            // A counter to track how many items to wait for before
-                            // the ready event fires. See #6781
-                            readyWait: 1,
-
-                            // Hold (or release) the ready event
-                            holdReady: function( hold ) {
-                                if ( hold ) {
-                                    jQuery.readyWait++;
-                                } else {
-                                    jQuery.ready( true );
-                                }
-                            },
-
-                            // Handle when the DOM is ready
-                            ready: function( wait ) {
-                                // Either a released hold or an DOMready/load event and not yet ready
-                                if ( (wait === true && !--jQuery.readyWait) || (wait !== true && !jQuery.isReady) ) {
-                                    // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-                                    if ( !document.body ) {
-                                        return setTimeout( jQuery.ready, 1 );
-                                    }
-
-                                    // Remember that the DOM is ready
-                                    jQuery.isReady = true;
-
-                                    // If a normal DOM Ready event fired, decrement, and wait if need be
-                                    if ( wait !== true && --jQuery.readyWait > 0 ) {
-                                        return;
-                                    }
-
-                                    // If there are functions bound, to execute
-                                    readyList.fireWith( document, [ jQuery ] );
-
-                                    // Trigger any bound ready events
-                                    if ( jQuery.fn.trigger ) {
-                                        jQuery( document ).trigger( "ready" ).off( "ready" );
-                                    }
-                                }
-                            },
-
-                            bindReady: function() {
-                                if ( readyList ) {
-                                    return;
-                                }
-
-                                readyList = jQuery.Callbacks( "once memory" );
-
-                                // Catch cases where $(document).ready() is called after the
-                                // browser event has already occurred.
-                                if ( document.readyState === "complete" ) {
-                                    // Handle it asynchronously to allow scripts the opportunity to delay ready
-                                    return setTimeout( jQuery.ready, 1 );
-                                }
-
-                                // Mozilla, Opera and webkit nightlies currently support this event
-                                if ( document.addEventListener ) {
-                                    // Use the handy event callback
-                                    document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-
-                                    // A fallback to window.onload, that will always work
-                                    window.addEventListener( "load", jQuery.ready, false );
-
-                                    // If IE event model is used
-                                } else if ( document.attachEvent ) {
-                                    // ensure firing before onload,
-                                    // maybe late but safe also for iframes
-                                    document.attachEvent( "onreadystatechange", DOMContentLoaded );
-
-                                    // A fallback to window.onload, that will always work
-                                    window.attachEvent( "onload", jQuery.ready );
-
-                                    // If IE and not a frame
-                                    // continually check to see if the document is ready
-                                    var toplevel = false;
-
-                                    try {
-                                        toplevel = window.frameElement == null;
-                                    } catch(e) {}
-
-                                    if ( document.documentElement.doScroll && toplevel ) {
-                                        doScrollCheck();
-                                    }
-                                }
-                            },
-
-                            // See test/unit/core.js for details concerning isFunction.
-                            // Since version 1.3, DOM methods and functions like alert
-                            // aren't supported. They return false on IE (#2968).
-                            isFunction: function( obj ) {
-                                return jQuery.type(obj) === "function";
-                            },
-
-                            isArray: Array.isArray || function( obj ) {
-                                return jQuery.type(obj) === "array";
-                            },
-
-                            isWindow: function( obj ) {
-                                return obj != null && obj == obj.window;
-                            },
-
-                            isNumeric: function( obj ) {
-                                return !isNaN( parseFloat(obj) ) && isFinite( obj );
-                            },
-
-                            type: function( obj ) {
-                                return obj == null ?
-                                    String( obj ) :
-                                    class2type[ toString.call(obj) ] || "object";
-                            },
-
-                            isPlainObject: function( obj ) {
-                                // Must be an Object.
-                                // Because of IE, we also have to check the presence of the constructor property.
-                                // Make sure that DOM nodes and window objects don't pass through, as well
-                                if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-                                    return false;
-                                }
-
-                                try {
-                                    // Not own constructor property must be Object
-                                    if ( obj.constructor &&
-                                        !hasOwn.call(obj, "constructor") &&
-                                        !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
-                                        return false;
-                                    }
-                                } catch ( e ) {
-                                    // IE8,9 Will throw exceptions on certain host objects #9897
-                                    return false;
-                                }
-
-                                // Own properties are enumerated firstly, so to speed up,
-                                // if last one is own, then all properties are own.
-
-                                var key;
-                                for ( key in obj ) {}
-
-                                return key === undefined || hasOwn.call( obj, key );
-                            },
-
-                            isEmptyObject: function( obj ) {
-                                for ( var name in obj ) {
-                                    return false;
-                                }
-                                return true;
-                            },
-
-                            error: function( msg ) {
-                                throw new Error( msg );
-                            },
-
-                            parseJSON: function( data ) {
-                                if ( typeof data !== "string" || !data ) {
-                                    return null;
-                                }
-
-                                // Make sure leading/trailing whitespace is removed (IE can't handle it)
-                                data = jQuery.trim( data );
-
-                                // Attempt to parse using the native JSON parser first
-                                if ( window.JSON && window.JSON.parse ) {
-                                    return window.JSON.parse( data );
-                                }
-
-                                // Make sure the incoming data is actual JSON
-                                // Logic borrowed from http://json.org/json2.js
-                                if ( rvalidchars.test( data.replace( rvalidescape, "@" )
-                                    .replace( rvalidtokens, "]" )
-                                    .replace( rvalidbraces, "")) ) {
-
-                                    return ( new Function( "return " + data ) )();
-
-                                }
-                                jQuery.error( "Invalid JSON: " + data );
-                            },
-
-                            // Cross-browser xml parsing
-                            parseXML: function( data ) {
-                                if ( typeof data !== "string" || !data ) {
-                                    return null;
-                                }
-                                var xml, tmp;
-                                try {
-                                    if ( window.DOMParser ) { // Standard
-                                        tmp = new DOMParser();
-                                        xml = tmp.parseFromString( data , "text/xml" );
-                                    } else { // IE
-                                        xml = new ActiveXObject( "Microsoft.XMLDOM" );
-                                        xml.async = "false";
-                                        xml.loadXML( data );
-                                    }
-                                } catch( e ) {
-                                    xml = undefined;
-                                }
-                                if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
-                                    jQuery.error( "Invalid XML: " + data );
-                                }
-                                return xml;
-                            },
-
-                            noop: function() {},
-
-                            // Evaluates a script in a global context
-                            // Workarounds based on findings by Jim Driscoll
-                            // http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
-                            globalEval: function( data ) {
-                                if ( data && rnotwhite.test( data ) ) {
-                                    // We use execScript on Internet Explorer
-                                    // We use an anonymous function so that context is window
-                                    // rather than jQuery in Firefox
-                                    ( window.execScript || function( data ) {
-                                        window[ "eval" ].call( window, data );
-                                    } )( data );
-                                }
-                            },
-
-                            // Convert dashed to camelCase; used by the css and data modules
-                            // Microsoft forgot to hump their vendor prefix (#9572)
-                            camelCase: function( string ) {
-                                return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-                            },
-
-                            nodeName: function( elem, name ) {
-                                return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
-                            },
-
-                            // args is for internal usage only
-                            each: function( object, callback, args ) {
-                                var name, i = 0,
-                                    length = object.length,
-                                    isObj = length === undefined || jQuery.isFunction( object );
-
-                                if ( args ) {
-                                    if ( isObj ) {
-                                        for ( name in object ) {
-                                            if ( callback.apply( object[ name ], args ) === false ) {
-                                                break;
-                                            }
-                                        }
-                                    } else {
-                                        for ( ; i < length; ) {
-                                            if ( callback.apply( object[ i++ ], args ) === false ) {
-                                                break;
-                                            }
-                                        }
-                                    }
-
-                                    // A special, fast, case for the most common use of each
-                                } else {
-                                    if ( isObj ) {
-                                        for ( name in object ) {
-                                            if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
-                                                break;
-                                            }
-                                        }
-                                    } else {
-                                        for ( ; i < length; ) {
-                                            if ( callback.call( object[ i ], i, object[ i++ ] ) === false ) {
-                                                break;
-                                            }
-                                        }
-                                    }
-                                }
-
-                                return object;
-                            },
-
-                            // Use native String.trim function wherever possible
-                            trim: trim ?
-                                function( text ) {
-                                    return text == null ?
-                                        "" :
-                                        trim.call( text );
-                                } :
-
-                                // Otherwise use our own trimming functionality
-                                function( text ) {
-                                    return text == null ?
-                                        "" :
-                                        text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
-                                },
-
-                            // results is for internal usage only
-                            makeArray: function( array, results ) {
-                                var ret = results || [];
-
-                                if ( array != null ) {
-                                    // The window, strings (and functions) also have 'length'
-                                    // Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
-                                    var type = jQuery.type( array );
-
-                                    if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
-                                        push.call( ret, array );
-                                    } else {
-                                        jQuery.merge( ret, array );
-                                    }
-                                }
-
-                                return ret;
-                            },
-
-                            inArray: function( elem, array, i ) {
-                                var len;
-
-                                if ( array ) {
-                                    if ( indexOf ) {
-                                        return indexOf.call( array, elem, i );
-                                    }
-
-                                    len = array.length;
-                                    i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;
-
-                                    for ( ; i < len; i++ ) {
-                                        // Skip accessing in sparse arrays
-                                        if ( i in array && array[ i ] === elem ) {
-                                            return i;
-                                        }
-                                    }
-                                }
-
-                                return -1;
-                            },
-
-                            merge: function( first, second ) {
-                                var i = first.length,
-                                    j = 0;
-
-                                if ( typeof second.length === "number" ) {
-                                    for ( var l = second.length; j < l; j++ ) {
-                                        first[ i++ ] = second[ j ];
-                                    }
-
-                                } else {
-                                    while ( second[j] !== undefined ) {
-                                        first[ i++ ] = second[ j++ ];
-                                    }
-                                }
-
-                                first.length = i;
-
-                                return first;
-                            },
-
-                            grep: function( elems, callback, inv ) {
-                                var ret = [], retVal;
-                                inv = !!inv;
-
-                                // Go through the array, only saving the items
-                                // that pass the validator function
-                                for ( var i = 0, length = elems.length; i < length; i++ ) {
-                                    retVal = !!callback( elems[ i ], i );
-                                    if ( inv !== retVal ) {
-                                        ret.push( elems[ i ] );
-                                    }
-                                }
-
-                                return ret;
-                            },
-
-                            // arg is for internal usage only
-                            map: function( elems, callback, arg ) {
-                                var value, key, ret = [],
-                                    i = 0,
-                                    length = elems.length,
-                                    // jquery objects are treated as arrays
-                                    isArray = elems instanceof jQuery || length !== undefined && typeof length === "number" && ( ( length > 0 && elems[ 0 ] && elems[ length -1 ] ) || length === 0 || jQuery.isArray( elems ) ) ;
-
-                                // Go through the array, translating each of the items to their
-                                if ( isArray ) {
-                                    for ( ; i < length; i++ ) {
-                                        value = callback( elems[ i ], i, arg );
-
-                                        if ( value != null ) {
-                                            ret[ ret.length ] = value;
-                                        }
-                                    }
-
-                                    // Go through every key on the object,
-                                } else {
-                                    for ( key in elems ) {
-                                        value = callback( elems[ key ], key, arg );
-
-                                        if ( value != null ) {
-                                            ret[ ret.length ] = value;
-                                        }
-                                    }
-                                }
-
-                                // Flatten any nested arrays
-                                return ret.concat.apply( [], ret );
-                            },
-
-                            // A global GUID counter for objects
-                            guid: 1,
-
-                            // Bind a function to a context, optionally partially applying any
-                            // arguments.
-                            proxy: function( fn, context ) {
-                                if ( typeof context === "string" ) {
-                                    var tmp = fn[ context ];
-                                    context = fn;
-                                    fn = tmp;
-                                }
-
-                                // Quick check to determine if target is callable, in the spec
-                                // this throws a TypeError, but we will just return undefined.
-                                if ( !jQuery.isFunction( fn ) ) {
-                                    return undefined;
-                                }
-
-                                // Simulated bind
-                                var args = slice.call( arguments, 2 ),
-                                    proxy = function() {
-                                        return fn.apply( context, args.concat( slice.call( arguments ) ) );
-                                    };
-
-                                // Set the guid of unique handler to the same of original handler, so it can be removed
-                                proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
-
-                                return proxy;
-                            },
-
-                            // Mutifunctional method to get and set values to a collection
-                            // The value/s can optionally be executed if it's a function
-                            access: function( elems, fn, key, value, chainable, emptyGet, pass ) {
-                                var exec,
-                                    bulk = key == null,
-                                    i = 0,
-                                    length = elems.length;
-
-                                // Sets many values
-                                if ( key && typeof key === "object" ) {
-                                    for ( i in key ) {
-                                        jQuery.access( elems, fn, i, key[i], 1, emptyGet, value );
-                                    }
-                                    chainable = 1;
-
-                                    // Sets one value
-                                } else if ( value !== undefined ) {
-                                    // Optionally, function values get executed if exec is true
-                                    exec = pass === undefined && jQuery.isFunction( value );
-
-                                    if ( bulk ) {
-                                        // Bulk operations only iterate when executing function values
-                                        if ( exec ) {
-                                            exec = fn;
-                                            fn = function( elem, key, value ) {
-                                                return exec.call( jQuery( elem ), value );
-                                            };
-
-                                            // Otherwise they run against the entire set
-                                        } else {
-                                            fn.call( elems, value );
-                                            fn = null;
-                                        }
-                                    }
-
-                                    if ( fn ) {
-                                        for (; i < length; i++ ) {
-                                            fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
-                                        }
-                                    }
-
-                                    chainable = 1;
-                                }
-
-                                return chainable ?
-                                    elems :
-
-                                    // Gets
-                                    bulk ?
-                                        fn.call( elems ) :
-                                        length ? fn( elems[0], key ) : emptyGet;
-                            },
-
-                            now: function() {
-                                return ( new Date() ).getTime();
-                            },
-
-                            // Use of jQuery.browser is frowned upon.
-                            // More details: http://docs.jquery.com/Utilities/jQuery.browser
-                            uaMatch: function( ua ) {
-                                ua = ua.toLowerCase();
-
-                                var match = rwebkit.exec( ua ) ||
-                                    ropera.exec( ua ) ||
-                                    rmsie.exec( ua ) ||
-                                    ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
-                                    [];
-
-                                return { browser: match[1] || "", version: match[2] || "0" };
-                            },
-
-                            sub: function() {
-                                function jQuerySub( selector, context ) {
-                                    return new jQuerySub.fn.init( selector, context );
-                                }
-                                jQuery.extend( true, jQuerySub, this );
-                                jQuerySub.superclass = this;
-                                jQuerySub.fn = jQuerySub.prototype = this();
-                                jQuerySub.fn.constructor = jQuerySub;
-                                jQuerySub.sub = this.sub;
-                                jQuerySub.fn.init = function init( selector, context ) {
-                                    if ( context && context instanceof jQuery && !(context instanceof jQuerySub) ) {
-                                        context = jQuerySub( context );
-                                    }
-
-                                    return jQuery.fn.init.call( this, selector, context, rootjQuerySub );
-                                };
-                                jQuerySub.fn.init.prototype = jQuerySub.fn;
-                                var rootjQuerySub = jQuerySub(document);
-                                return jQuerySub;
-                            },
-
-                            browser: {}
-                        });
-
-// Populate the class2type map
-                        jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
-                            class2type[ "[object " + name + "]" ] = name.toLowerCase();
-                        });
-
-                        browserMatch = jQuery.uaMatch( userAgent );
-                        if ( browserMatch.browser ) {
-                            jQuery.browser[ browserMatch.browser ] = true;
-                            jQuery.browser.version = browserMatch.version;
-                        }
-
-// Deprecated, use jQuery.browser.webkit instead
-                        if ( jQuery.browser.webkit ) {
-                            jQuery.browser.safari = true;
-                        }
-
-// IE doesn't match non-breaking spaces with \s
-                        if ( rnotwhite.test( "\xA0" ) ) {
-                            trimLeft = /^[\s\xA0]+/;
-                            trimRight = /[\s\xA0]+$/;
-                        }
-
-// All jQuery objects should point back to these
-                        rootjQuery = jQuery(document);
-
-// Cleanup functions for the document ready method
-                        if ( document.addEventListener ) {
-                            DOMContentLoaded = function() {
-                                document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-                                jQuery.ready();
-                            };
-
-                        } else if ( document.attachEvent ) {
-                            DOMContentLoaded = function() {
-                                // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-                                if ( document.readyState === "complete" ) {
-                                    document.detachEvent( "onreadystatechange", DOMContentLoaded );
-                                    jQuery.ready();
-                                }
-                            };
-                        }
-
-// The DOM ready check for Internet Explorer
-                        function doScrollCheck() {
-                            if ( jQuery.isReady ) {
-                                return;
-                            }
-
-                            try {
-                                // If IE is used, use the trick by Diego Perini
-                                // http://javascript.nwbox.com/IEContentLoaded/
-                                document.documentElement.doScroll("left");
-                            } catch(e) {
-                                setTimeout( doScrollCheck, 1 );
-                                return;
-                            }
-
-                            // and execute any waiting functions
-                            jQuery.ready();
-                        }
-
-                        return jQuery;
-
-                    })();
-
-
-// String to Object flags format cache
-                    var flagsCache = {};
-
-// Convert String-formatted flags into Object-formatted ones and store in cache
-                    function createFlags( flags ) {
-                        var object = flagsCache[ flags ] = {},
-                            i, length;
-                        flags = flags.split( /\s+/ );
-                        for ( i = 0, length = flags.length; i < length; i++ ) {
-                            object[ flags[i] ] = true;
-                        }
-                        return object;
-                    }
-
-                    /*
- * Create a callback list using the following parameters:
- *
- *	flags:	an optional list of space-separated flags that will change how
- *			the callback list behaves
- *
- * By default a callback list will act like an event callback list and can be
- * "fired" multiple times.
- *
- * Possible flags:
- *
- *	once:			will ensure the callback list can only be fired once (like a Deferred)
- *
- *	memory:			will keep track of previous values and will call any callback added
- *					after the list has been fired right away with the latest "memorized"
- *					values (like a Deferred)
- *
- *	unique:			will ensure a callback can only be added once (no duplicate in the list)
- *
- *	stopOnFalse:	interrupt callings when a callback returns false
- *
- */
-                    jQuery.Callbacks = function( flags ) {
-
-                        // Convert flags from String-formatted to Object-formatted
-                        // (we check in cache first)
-                        flags = flags ? ( flagsCache[ flags ] || createFlags( flags ) ) : {};
-
-                        var // Actual callback list
-                            list = [],
-                            // Stack of fire calls for repeatable lists
-                            stack = [],
-                            // Last fire value (for non-forgettable lists)
-                            memory,
-                            // Flag to know if list was already fired
-                            fired,
-                            // Flag to know if list is currently firing
-                            firing,
-                            // First callback to fire (used internally by add and fireWith)
-                            firingStart,
-                            // End of the loop when firing
-                            firingLength,
-                            // Index of currently firing callback (modified by remove if needed)
-                            firingIndex,
-                            // Add one or several callbacks to the list
-                            add = function( args ) {
-                                var i,
-                                    length,
-                                    elem,
-                                    type,
-                                    actual;
-                                for ( i = 0, length = args.length; i < length; i++ ) {
-                                    elem = args[ i ];
-                                    type = jQuery.type( elem );
-                                    if ( type === "array" ) {
-                                        // Inspect recursively
-                                        add( elem );
-                                    } else if ( type === "function" ) {
-                                        // Add if not in unique mode and callback is not in
-                                        if ( !flags.unique || !self.has( elem ) ) {
-                                            list.push( elem );
-                                        }
-                                    }
-                                }
-                            },
-                            // Fire callbacks
-                            fire = function( context, args ) {
-                                args = args || [];
-                                memory = !flags.memory || [ context, args ];
-                                fired = true;
-                                firing = true;
-                                firingIndex = firingStart || 0;
-                                firingStart = 0;
-                                firingLength = list.length;
-                                for ( ; list && firingIndex < firingLength; firingIndex++ ) {
-                                    if ( list[ firingIndex ].apply( context, args ) === false && flags.stopOnFalse ) {
-                                        memory = true; // Mark as halted
-                                        break;
-                                    }
-                                }
-                                firing = false;
-                                if ( list ) {
-                                    if ( !flags.once ) {
-                                        if ( stack && stack.length ) {
-                                            memory = stack.shift();
-                                            self.fireWith( memory[ 0 ], memory[ 1 ] );
-                                        }
-                                    } else if ( memory === true ) {
-                                        self.disable();
-                                    } else {
-                                        list = [];
-                                    }
-                                }
-                            },
-                            // Actual Callbacks object
-                            self = {
-                                // Add a callback or a collection of callbacks to the list
-                                add: function() {
-                                    if ( list ) {
-                                        var length = list.length;
-                                        add( arguments );
-                                        // Do we need to add the callbacks to the
-                                        // current firing batch?
-                                        if ( firing ) {
-                                            firingLength = list.length;
-                                            // With memory, if we're not firing then
-                                            // we should call right away, unless previous
-                                            // firing was halted (stopOnFalse)
-                                        } else if ( memory && memory !== true ) {
-                                            firingStart = length;
-                                            fire( memory[ 0 ], memory[ 1 ] );
-                                        }
-                                    }
-                                    return this;
-                                },
-                                // Remove a callback from the list
-                                remove: function() {
-                                    if ( list ) {
-                                        var args = arguments,
-                                            argIndex = 0,
-                                            argLength = args.length;
-                                        for ( ; argIndex < argLength ; argIndex++ ) {
-                                            for ( var i = 0; i < list.length; i++ ) {
-                                                if ( args[ argIndex ] === list[ i ] ) {
-                                                    // Handle firingIndex and firingLength
-                                                    if ( firing ) {
-                                                        if ( i <= firingLength ) {
-                                                            firingLength--;
-                                                            if ( i <= firingIndex ) {
-                                                                firingIndex--;
-                                                            }
-                                                        }
-                                                    }
-                                                    // Remove the element
-                                                    list.splice( i--, 1 );
-                                                    // If we have some unicity property then
-                                                    // we only need to do this once
-                                                    if ( flags.unique ) {
-                                                        break;
-                                                    }
-                                                }
-                                            }
-                                        }
-                                    }
-                                    return this;
-                                },
-                                // Control if a given callback is in the list
-                                has: function( fn ) {
-                                    if ( list ) {
-                                        var i = 0,
-                                            length = list.length;
-                                        for ( ; i < length; i++ ) {
-                                            if ( fn === list[ i ] ) {
-                                                return true;
-                                            }
-                                        }
-                                    }
-                                    return false;
-                                },
-                                // Remove all callbacks from the list
-                                empty: function() {
-                                    list = [];
-                                    return this;
-                                },
-                                // Have the list do nothing anymore
-                                disable: function() {
-                                    list = stack = memory = undefined;
-                                    return this;
-                                },
-                                // Is it disabled?
-                                disabled: function() {
-                                    return !list;
-                                },
-                                // Lock the list in its current state
-                                lock: function() {
-                                    stack = undefined;
-                                    if ( !memory || memory === true ) {
-                                        self.disable();
-                                    }
-                                    return this;
-                                },
-                                // Is it locked?
-                                locked: function() {
-                                    return !stack;
-                                },
-                                // Call all callbacks with the given context and arguments
-                                fireWith: function( context, args ) {
-                                    if ( stack ) {
-                                        if ( firing ) {
-                                            if ( !flags.once ) {
-                                                stack.push( [ context, args ] );
-                                            }
-                                        } else if ( !( flags.once && memory ) ) {
-                                            fire( context, args );
-                                        }
-                                    }
-                                    return this;
-                                },
-                                // Call all the callbacks with the given arguments
-                                fire: function() {
-                                    self.fireWith( this, arguments );
-                                    return this;
-                                },
-                                // To know if the callbacks have already been called at least once
-                                fired: function() {
-                                    return !!fired;
-                                }
-                            };
-
-                        return self;
-                    };
-
-
-
-
-                    var // Static reference to slice
-                        sliceDeferred = [].slice;
-
-                    jQuery.extend({
-
-                        Deferred: function( func ) {
-                            var doneList = jQuery.Callbacks( "once memory" ),
-                                failList = jQuery.Callbacks( "once memory" ),
-                                progressList = jQuery.Callbacks( "memory" ),
-                                state = "pending",
-                                lists = {
-                                    resolve: doneList,
-                                    reject: failList,
-                                    notify: progressList
-                                },
-                                promise = {
-                                    done: doneList.add,
-                                    fail: failList.add,
-                                    progress: progressList.add,
-
-                                    state: function() {
-                                        return state;
-                                    },
-
-                                    // Deprecated
-                                    isResolved: doneList.fired,
-                                    isRejected: failList.fired,
-
-                                    then: function( doneCallbacks, failCallbacks, progressCallbacks ) {
-                                        deferred.done( doneCallbacks ).fail( failCallbacks ).progress( progressCallbacks );
-                                        return this;
-                                    },
-                                    always: function() {
-                                        deferred.done.apply( deferred, arguments ).fail.apply( deferred, arguments );
-                                        return this;
-                                    },
-                                    pipe: function( fnDone, fnFail, fnProgress ) {
-                                        return jQuery.Deferred(function( newDefer ) {
-                                            jQuery.each( {
-                                                done: [ fnDone, "resolve" ],
-                                                fail: [ fnFail, "reject" ],
-                                                progress: [ fnProgress, "notify" ]
-                                            }, function( handler, data ) {
-                                                var fn = data[ 0 ],
-                                                    action = data[ 1 ],
-                                                    returned;
-                                                if ( jQuery.isFunction( fn ) ) {
-                                                    deferred[ handler ](function() {
-                                                        returned = fn.apply( this, arguments );
-                                                        if ( returned && jQuery.isFunction( returned.promise ) ) {
-                                                            returned.promise().then( newDefer.resolve, newDefer.reject, newDefer.notify );
-                                                        } else {
-                                                            newDefer[ action + "With" ]( this === deferred ? newDefer : this, [ returned ] );
-                                                        }
-                                                    });
-                                                } else {
-                                                    deferred[ handler ]( newDefer[ action ] );
-                                                }
-                                            });
-                                        }).promise();
-                                    },
-                                    // Get a promise for this deferred
-                                    // If obj is provided, the promise aspect is added to the object
-                                    promise: function( obj ) {
-                                        if ( obj == null ) {
-                                            obj = promise;
-                                        } else {
-                                            for ( var key in promise ) {
-                                                obj[ key ] = promise[ key ];
-                                            }
-                                        }
-                                        return obj;
-                                    }
-                                },
-                                deferred = promise.promise({}),
-                                key;
-
-                            for ( key in lists ) {
-                                deferred[ key ] = lists[ key ].fire;
-                                deferred[ key + "With" ] = lists[ key ].fireWith;
-                            }
-
-                            // Handle state
-                            deferred.done( function() {
-                                state = "resolved";
-                            }, failList.disable, progressList.lock ).fail( function() {
-                                state = "rejected";
-                            }, doneList.disable, progressList.lock );
-
-                            // Call given func if any
-                            if ( func ) {
-                                func.call( deferred, deferred );
-                            }
-
-                            // All done!
-                            return deferred;
-                        },
-
-                        // Deferred helper
-                        when: function( firstParam ) {
-                            var args = sliceDeferred.call( arguments, 0 ),
-                                i = 0,
-                                length = args.length,
-                                pValues = new Array( length ),
-                                count = length,
-                                pCount = length,
-                                deferred = length <= 1 && firstParam && jQuery.isFunction( firstParam.promise ) ?
-                                    firstParam :
-                                    jQuery.Deferred(),
-                                promise = deferred.promise();
-                            function resolveFunc( i ) {
-                                return function( value ) {
-                                    args[ i ] = arguments.length > 1 ? sliceDeferred.call( arguments, 0 ) : value;
-                                    if ( !( --count ) ) {
-                                        deferred.resolveWith( deferred, args );
-                                    }
-                                };
-                            }
-                            function progressFunc( i ) {
-                                return function( value ) {
-                                    pValues[ i ] = arguments.length > 1 ? sliceDeferred.call( arguments, 0 ) : value;
-                                    deferred.notifyWith( promise, pValues );
-                                };
-                            }
-                            if ( length > 1 ) {
-                                for ( ; i < length; i++ ) {
-                                    if ( args[ i ] && args[ i ].promise && jQuery.isFunction( args[ i ].promise ) ) {
-                                        args[ i ].promise().then( resolveFunc(i), deferred.reject, progressFunc(i) );
-                                    } else {
-                                        --count;
-                                    }
-                                }
-                                if ( !count ) {
-                                    deferred.resolveWith( deferred, args );
-                                }
-                            } else if ( deferred !== firstParam ) {
-                                deferred.resolveWith( deferred, length ? [ firstParam ] : [] );
-                            }
-                            return promise;
-                        }
-                    });
-
-
-
-
-                    jQuery.support = (function() {
-
-                        var support,
-                            all,
-                            a,
-                            select,
-                            opt,
-                            input,
-                            fragment,
-                            tds,
-                            events,
-                            eventName,
-                            i,
-                            isSupported,
-                            div = document.createElement( "div" ),
-                            documentElement = document.documentElement;
-
-                        // Preliminary tests
-                        div.setAttribute("className", "t");
-                        div.innerHTML = "   <link/><table></table><a href='/a' style='top:1px;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
-
-                        all = div.getElementsByTagName( "*" );
-                        a = div.getElementsByTagName( "a" )[ 0 ];
-
-                        // Can't get basic test support
-                        if ( !all || !all.length || !a ) {
-                            return {};
-                        }
-
-                        // First batch of supports tests
-                        select = document.createElement( "select" );
-                        opt = select.appendChild( document.createElement("option") );
-                        input = div.getElementsByTagName( "input" )[ 0 ];
-
-                        support = {
-                            // IE strips leading whitespace when .innerHTML is used
-                            leadingWhitespace: ( div.firstChild.nodeType === 3 ),
-
-                            // Make sure that tbody elements aren't automatically inserted
-                            // IE will insert them into empty tables
-                            tbody: !div.getElementsByTagName("tbody").length,
-
-                            // Make sure that link elements get serialized correctly by innerHTML
-                            // This requires a wrapper element in IE
-                            htmlSerialize: !!div.getElementsByTagName("link").length,
-
-                            // Get the style information from getAttribute
-                            // (IE uses .cssText instead)
-                            style: /top/.test( a.getAttribute("style") ),
-
-                            // Make sure that URLs aren't manipulated
-                            // (IE normalizes it by default)
-                            hrefNormalized: ( a.getAttribute("href") === "/a" ),
-
-                            // Make sure that element opacity exists
-                            // (IE uses filter instead)
-                            // Use a regex to work around a WebKit issue. See #5145
-                            opacity: /^0.55/.test( a.style.opacity ),
-
-                            // Verify style float existence
-                            // (IE uses styleFloat instead of cssFloat)
-                            cssFloat: !!a.style.cssFloat,
-
-                            // Make sure that if no value is specified for a checkbox
-                            // that it defaults to "on".
-                            // (WebKit defaults to "" instead)
-                            checkOn: ( input.value === "on" ),
-
-                            // Make sure that a selected-by-default option has a working selected property.
-                            // (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
-                            optSelected: opt.selected,
-
-                            // Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
-                            getSetAttribute: div.className !== "t",
-
-                            // Tests for enctype support on a form(#6743)
-                            enctype: !!document.createElement("form").enctype,
-
-                            // Makes sure cloning an html5 element does not cause problems
-                            // Where outerHTML is undefined, this still works
-                            html5Clone: document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>",
-
-                            // Will be defined later
-                            submitBubbles: true,
-                            changeBubbles: true,
-                            focusinBubbles: false,
-                            deleteExpando: true,
-                            noCloneEvent: true,
-                            inlineBlockNeedsLayout: false,
-                            shrinkWrapBlocks: false,
-                            reliableMarginRight: true,
-                            pixelMargin: true
-                        };
-
-                        // jQuery.boxModel DEPRECATED in 1.3, use jQuery.support.boxModel instead
-                        jQuery.boxModel = support.boxModel = (document.compatMode === "CSS1Compat");
-
-                        // Make sure checked status is properly cloned
-                        input.checked = true;
-                        support.noCloneChecked = input.cloneNode( true ).checked;
-
-                        // Make sure that the options inside disabled selects aren't marked as disabled
-                        // (WebKit marks them as disabled)
-                        select.disabled = true;
-                        support.optDisabled = !opt.disabled;
-
-                        // Test to see if it's possible to delete an expando from an element
-                        // Fails in Internet Explorer
-                        try {
-                            delete div.test;
-                        } catch( e ) {
-                            support.deleteExpando = false;
-                        }
-
-                        if ( !div.addEventListener && div.attachEvent && div.fireEvent ) {
-                            div.attachEvent( "onclick", function() {
-                                // Cloning a node shouldn't copy over any
-                                // bound event handlers (IE does this)
-                                support.noCloneEvent = false;
-                            });
-                            div.cloneNode( true ).fireEvent( "onclick" );
-                        }
-
-                        // Check if a radio maintains its value
-                        // after being appended to the DOM
-                        input = document.createElement("input");
-                        input.value = "t";
-                        input.setAttribute("type", "radio");
-                        support.radioValue = input.value === "t";
-
-                        input.setAttribute("checked", "checked");
-
-                        // #11217 - WebKit loses check when the name is after the checked attribute
-                        input.setAttribute( "name", "t" );
-
-                        div.appendChild( input );
-                        fragment = document.createDocumentFragment();
-                        fragment.appendChild( div.lastChild );
-
-                        // WebKit doesn't clone checked state correctly in fragments
-                        support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-                        // Check if a disconnected checkbox will retain its checked
-                        // value of true after appended to the DOM (IE6/7)
-                        support.appendChecked = input.checked;
-
-                        fragment.removeChild( input );
-                        fragment.appendChild( div );
-
-                        // Technique from Juriy Zaytsev
-                        // http://perfectionkills.com/detecting-event-support-without-browser-sniffing/
-                        // We only care about the case where non-standard event systems
-                        // are used, namely in IE. Short-circuiting here helps us to
-                        // avoid an eval call (in setAttribute) which can cause CSP
-                        // to go haywire. See: https://developer.mozilla.org/en/Security/CSP
-                        if ( div.attachEvent ) {
-                            for ( i in {
-                                submit: 1,
-                                change: 1,
-                                focusin: 1
-                            }) {
-                                eventName = "on" + i;
-                                isSupported = ( eventName in div );
-                                if ( !isSupported ) {
-                                    div.setAttribute( eventName, "return;" );
-                                    isSupported = ( typeof div[ eventName ] === "function" );
-                                }
-                                support[ i + "Bubbles" ] = isSupported;
-                            }
-                        }
-
-                        fragment.removeChild( div );
-
-                        // Null elements to avoid leaks in IE
-                        fragment = select = opt = div = input = null;
-
-                        // Run tests that need a body at doc ready
-                        jQuery(function() {
-                            var container, outer, inner, table, td, offsetSupport,
-                                marginDiv, conMarginTop, style, html, positionTopLeftWidthHeight,
-                                paddingMarginBorderVisibility, paddingMarginBorder,
-                                body = document.getElementsByTagName("body")[0];
-
-                            if ( !body ) {
-                                // Return for frameset docs that don't have a body
-                                return;
-                            }
-
-                            conMarginTop = 1;
-                            paddingMarginBorder = "padding:0;margin:0;border:";
-                            positionTopLeftWidthHeight = "position:absolute;top:0;left:0;width:1px;height:1px;";
-                            paddingMarginBorderVisibility = paddingMarginBorder + "0;visibility:hidden;";
-                            style = "style='" + positionTopLeftWidthHeight + paddingMarginBorder + "5px solid #000;";
-                            html = "<div " + style + "display:block;'><div style='" + paddingMarginBorder + "0;display:block;overflow:hidden;'></div></div>" +
-                                "<table " + style + "' cellpadding='0' cellspacing='0'>" +
-                                "<tr><td></td></tr></table>";
-
-                            container = document.createElement("div");
-                            container.style.cssText = paddingMarginBorderVisibility + "width:0;height:0;position:static;top:0;margin-top:" + conMarginTop + "px";
-                            body.insertBefore( container, body.firstChild );
-
-                            // Construct the test element
-                            div = document.createElement("div");
-                            container.appendChild( div );
-
-                            // Check if table cells still have offsetWidth/Height when they are set
-                            // to display:none and there are still other visible table cells in a
-                            // table row; if so, offsetWidth/Height are not reliable for use when
-                            // determining if an element has been hidden directly using
-                            // display:none (it is still safe to use offsets if a parent element is
-                            // hidden; don safety goggles and see bug #4512 for more information).
-                            // (only IE 8 fails this test)
-                            div.innerHTML = "<table><tr><td style='" + paddingMarginBorder + "0;display:none'></td><td>t</td></tr></table>";
-                            tds = div.getElementsByTagName( "td" );
-                            isSupported = ( tds[ 0 ].offsetHeight === 0 );
-
-                            tds[ 0 ].style.display = "";
-                            tds[ 1 ].style.display = "none";
-
-                            // Check if empty table cells still have offsetWidth/Height
-                            // (IE <= 8 fail this test)
-                            support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
-
-                            // Check if div with explicit width and no margin-right incorrectly
-                            // gets computed margin-right based on width of container. For more
-                            // info see bug #3333
-                            // Fails in WebKit before Feb 2011 nightlies
-                            // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-                            if ( window.getComputedStyle ) {
-                                div.innerHTML = "";
-                                marginDiv = document.createElement( "div" );
-                                marginDiv.style.width = "0";
-                                marginDiv.style.marginRight = "0";
-                                div.style.width = "2px";
-                                div.appendChild( marginDiv );
-                                support.reliableMarginRight =
-                                    ( parseInt( ( window.getComputedStyle( marginDiv, null ) || { marginRight: 0 } ).marginRight, 10 ) || 0 ) === 0;
-                            }
-
-                            if ( typeof div.style.zoom !== "undefined" ) {
-                                // Check if natively block-level elements act like inline-block
-                                // elements when setting their display to 'inline' and giving
-                                // them layout
-                                // (IE < 8 does this)
-                                div.innerHTML = "";
-                                div.style.width = div.style.padding = "1px";
-                                div.style.border = 0;
-                                div.style.overflow = "hidden";
-                                div.style.display = "inline";
-                                div.style.zoom = 1;
-                                support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );
-
-                                // Check if elements with layout shrink-wrap their children
-                                // (IE 6 does this)
-                                div.style.display = "block";
-                                div.style.overflow = "visible";
-                                div.innerHTML = "<div style='width:5px;'></div>";
-                                support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
-                            }
-
-                            div.style.cssText = positionTopLeftWidthHeight + paddingMarginBorderVisibility;
-                            div.innerHTML = html;
-
-                            outer = div.firstChild;
-                            inner = outer.firstChild;
-                            td = outer.nextSibling.firstChild.firstChild;
-
-                            offsetSupport = {
-                                doesNotAddBorder: ( inner.offsetTop !== 5 ),
-                                doesAddBorderForTableAndCells: ( td.offsetTop === 5 )
-                            };
-
-                            inner.style.position = "fixed";
-                            inner.style.top = "20px";
-
-                            // safari subtracts parent border width here which is 5px
-                            offsetSupport.fixedPosition = ( inner.offsetTop === 20 || inner.offsetTop === 15 );
-                            inner.style.position = inner.style.top = "";
-
-                            outer.style.overflow = "hidden";
-                            outer.style.position = "relative";
-
-                            offsetSupport.subtractsBorderForOverflowNotVisible = ( inner.offsetTop === -5 );
-                            offsetSupport.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== conMarginTop );
-
-                            if ( window.getComputedStyle ) {
-                                div.style.marginTop = "1%";
-                                support.pixelMargin = ( window.getComputedStyle( div, null ) || { marginTop: 0 } ).marginTop !== "1%";
-                            }
-
-                            if ( typeof container.style.zoom !== "undefined" ) {
-                                container.style.zoom = 1;
-                            }
-
-                            body.removeChild( container );
-                            marginDiv = div = container = null;
-
-                            jQuery.extend( support, offsetSupport );
-                        });
-
-                        return support;
-                    })();
-
-
-
-
-                    var rbrace = /^(?:\{.*\}|\[.*\])$/,
-                        rmultiDash = /([A-Z])/g;
-
-                    jQuery.extend({
-                        cache: {},
-
-                        // Please use with caution
-                        uuid: 0,
-
-                        // Unique for each copy of jQuery on the page
-                        // Non-digits removed to match rinlinejQuery
-                        expando: "jQuery" + ( jQuery.fn.jquery + Math.random() ).replace( /\D/g, "" ),
-
-                        // The following elements throw uncatchable exceptions if you
-                        // attempt to add expando properties to them.
-                        noData: {
-                            "embed": true,
-                            // Ban all objects except for Flash (which handle expandos)
-                            "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
-                            "applet": true
-                        },
-
-                        hasData: function( elem ) {
-                            elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
-                            return !!elem && !isEmptyDataObject( elem );
-                        },
-
-                        data: function( elem, name, data, pvt /* Internal Use Only */ ) {
-                            if ( !jQuery.acceptData( elem ) ) {
-                                return;
-                            }
-
-                            var privateCache, thisCache, ret,
-                                internalKey = jQuery.expando,
-                                getByName = typeof name === "string",
-
-                                // We have to handle DOM nodes and JS objects differently because IE6-7
-                                // can't GC object references properly across the DOM-JS boundary
-                                isNode = elem.nodeType,
-
-                                // Only DOM nodes need the global jQuery cache; JS object data is
-                                // attached directly to the object so GC can occur automatically
-                                cache = isNode ? jQuery.cache : elem,
-
-                                // Only defining an ID for JS objects if its cache already exists allows
-                                // the code to shortcut on the same path as a DOM node with no cache
-                                id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey,
-                                isEvents = name === "events";
-
-                            // Avoid doing any more work than we need to when trying to get data on an
-                            // object that has no data at all
-                            if ( (!id || !cache[id] || (!isEvents && !pvt && !cache[id].data)) && getByName && data === undefined ) {
-                                return;
-                            }
-
-                            if ( !id ) {
-                                // Only DOM nodes need a new unique ID for each element since their data
-                                // ends up in the global cache
-                                if ( isNode ) {
-                                    elem[ internalKey ] = id = ++jQuery.uuid;
-                                } else {
-                                    id = internalKey;
-                                }
-                            }
-
-                            if ( !cache[ id ] ) {
-                                cache[ id ] = {};
-
-                                // Avoids exposing jQuery metadata on plain JS objects when the object
-                                // is serialized using JSON.stringify
-                                if ( !isNode ) {
-                                    cache[ id ].toJSON = jQuery.noop;
-                                }
-                            }
-
-                            // An object can be passed to jQuery.data instead of a key/value pair; this gets
-                            // shallow copied over onto the existing cache
-                            if ( typeof name === "object" || typeof name === "function" ) {
-                                if ( pvt ) {
-                                    cache[ id ] = jQuery.extend( cache[ id ], name );
-                                } else {
-                                    cache[ id ].data = jQuery.extend( cache[ id ].data, name );
-                                }
-                            }
-
-                            privateCache = thisCache = cache[ id ];
-
-                            // jQuery data() is stored in a separate object inside the object's internal data
-                            // cache in order to avoid key collisions between internal data and user-defined
-                            // data.
-                            if ( !pvt ) {
-                                if ( !thisCache.data ) {
-                                    thisCache.data = {};
-                                }
-
-                                thisCache = thisCache.data;
-                            }
-
-                            if ( data !== undefined ) {
-                                thisCache[ jQuery.camelCase( name ) ] = data;
-                            }
-
-                            // Users should not attempt to inspect the internal events object using jQuery.data,
-                            // it is undocumented and subject to change. But does anyone listen? No.
-                            if ( isEvents && !thisCache[ name ] ) {
-                                return privateCache.events;
-                            }
-
-                            // Check for both converted-to-camel and non-converted data property names
-                            // If a data property was specified
-                            if ( getByName ) {
-
-                                // First Try to find as-is property data
-                                ret = thisCache[ name ];
-
-                                // Test for null|undefined property data
-                                if ( ret == null ) {
-
-                                    // Try to find the camelCased property
-                                    ret = thisCache[ jQuery.camelCase( name ) ];
-                                }
-                            } else {
-                                ret = thisCache;
-                            }
-
-                            return ret;
-                        },
-
-                        removeData: function( elem, name, pvt /* Internal Use Only */ ) {
-                            if ( !jQuery.acceptData( elem ) ) {
-                                return;
-                            }
-
-                            var thisCache, i, l,
-
-                                // Reference to internal data cache key
-                                internalKey = jQuery.expando,
-
-                                isNode = elem.nodeType,
-
-                                // See jQuery.data for more information
-                                cache = isNode ? jQuery.cache : elem,
-
-                                // See jQuery.data for more information
-                                id = isNode ? elem[ internalKey ] : internalKey;
-
-                            // If there is already no cache entry for this object, there is no
-                            // purpose in continuing
-                            if ( !cache[ id ] ) {
-                                return;
-                            }
-
-                            if ( name ) {
-
-                                thisCache = pvt ? cache[ id ] : cache[ id ].data;
-
-                                if ( thisCache ) {
-
-                                    // Support array or space separated string names for data keys
-                                    if ( !jQuery.isArray( name ) ) {
-
-                                        // try the string as a key before any manipulation
-                                        if ( name in thisCache ) {
-                                            name = [ name ];
-                                        } else {
-
-                                            // split the camel cased version by spaces unless a key with the spaces exists
-                                            name = jQuery.camelCase( name );
-                                            if ( name in thisCache ) {
-                                                name = [ name ];
-                                            } else {
-                                                name = name.split( " " );
-                                            }
-                                        }
-                                    }
-
-                                    for ( i = 0, l = name.length; i < l; i++ ) {
-                                        delete thisCache[ name[i] ];
-                                    }
-
-                                    // If there is no data left in the cache, we want to continue
-                                    // and let the cache object itself get destroyed
-                                    if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
-                                        return;
-                                    }
-                                }
-                            }
-
-                            // See jQuery.data for more information
-                            if ( !pvt ) {
-                                delete cache[ id ].data;
-
-                                // Don't destroy the parent cache unless the internal data object
-                                // had been the only thing left in it
-                                if ( !isEmptyDataObject(cache[ id ]) ) {
-                                    return;
-                                }
-                            }
-
-                            // Browsers that fail expando deletion also refuse to delete expandos on
-                            // the window, but it will allow it on all other JS objects; other browsers
-                            // don't care
-                            // Ensure that `cache` is not a window object #10080
-                            if ( jQuery.support.deleteExpando || !cache.setInterval ) {
-                                delete cache[ id ];
-                            } else {
-                                cache[ id ] = null;
-                            }
-
-                            // We destroyed the cache and need to eliminate the expando on the node to avoid
-                            // false lookups in the cache for entries that no longer exist
-                            if ( isNode ) {
-                                // IE does not allow us to delete expando properties from nodes,
-                                // nor does it have a removeAttribute function on Document nodes;
-                                // we must handle all of these cases
-                                if ( jQuery.support.deleteExpando ) {
-                                    delete elem[ internalKey ];
-                                } else if ( elem.removeAttribute ) {
-                                    elem.removeAttribute( internalKey );
-                                } else {
-                                    elem[ internalKey ] = null;
-                                }
-                            }
-                        },
-
-                        // For internal use only.
-                        _data: function( elem, name, data ) {
-                            return jQuery.data( elem, name, data, true );
-                        },
-
-                        // A method for determining if a DOM node can handle the data expando
-                        acceptData: function( elem ) {
-                            if ( elem.nodeName ) {
-                                var match = jQuery.noData[ elem.nodeName.toLowerCase() ];
-
-                                if ( match ) {
-                                    return !(match === true || elem.getAttribute("classid") !== match);
-                                }
-                            }
-
-                            return true;
-                        }
-                    });
-
-                    jQuery.fn.extend({
-                        data: function( key, value ) {
-                            var parts, part, attr, name, l,
-                                elem = this[0],
-                                i = 0,
-                                data = null;
-
-                            // Gets all values
-                            if ( key === undefined ) {
-                                if ( this.length ) {
-                                    data = jQuery.data( elem );
-
-                                    if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
-                                        attr = elem.attributes;
-                                        for ( l = attr.length; i < l; i++ ) {
-                                            name = attr[i].name;
-
-                                            if ( name.indexOf( "data-" ) === 0 ) {
-                                                name = jQuery.camelCase( name.substring(5) );
-
-                                                dataAttr( elem, name, data[ name ] );
-                                            }
-                                        }
-                                        jQuery._data( elem, "parsedAttrs", true );
-                                    }
-                                }
-
-                                return data;
-                            }
-
-                            // Sets multiple values
-                            if ( typeof key === "object" ) {
-                                return this.each(function() {
-                                    jQuery.data( this, key );
-                                });
-                            }
-
-                            parts = key.split( ".", 2 );
-                            parts[1] = parts[1] ? "." + parts[1] : "";
-                            part = parts[1] + "!";
-
-                            return jQuery.access( this, function( value ) {
-
-                                if ( value === undefined ) {
-                                    data = this.triggerHandler( "getData" + part, [ parts[0] ] );
-
-                                    // Try to fetch any internally stored data first
-                                    if ( data === undefined && elem ) {
-                                        data = jQuery.data( elem, key );
-                                        data = dataAttr( elem, key, data );
-                                    }
-
-                                    return data === undefined && parts[1] ?
-                                        this.data( parts[0] ) :
-                                        data;
-                                }
-
-                                parts[1] = value;
-                                this.each(function() {
-                                    var self = jQuery( this );
-
-                                    self.triggerHandler( "setData" + part, parts );
-                                    jQuery.data( this, key, value );
-                                    self.triggerHandler( "changeData" + part, parts );
-                                });
-                            }, null, value, arguments.length > 1, null, false );
-                        },
-
-                        removeData: function( key ) {
-                            return this.each(function() {
-                                jQuery.removeData( this, key );
-                            });
-                        }
-                    });
-
-                    function dataAttr( elem, key, data ) {
-                        // If nothing was found internally, try to fetch any
-                        // data from the HTML5 data-* attribute
-                        if ( data === undefined && elem.nodeType === 1 ) {
-
-                            var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
-
-                            data = elem.getAttribute( name );
-
-                            if ( typeof data === "string" ) {
-                                try {
-                                    data = data === "true" ? true :
-                                        data === "false" ? false :
-                                            data === "null" ? null :
-                                                jQuery.isNumeric( data ) ? +data :
-                                                    rbrace.test( data ) ? jQuery.parseJSON( data ) :
-                                                        data;
-                                } catch( e ) {}
-
-                                // Make sure we set the data so it isn't changed later
-                                jQuery.data( elem, key, data );
-
-                            } else {
-                                data = undefined;
-                            }
-                        }
-
-                        return data;
-                    }
-
-// checks a cache object for emptiness
-                    function isEmptyDataObject( obj ) {
-                        for ( var name in obj ) {
-
-                            // if the public data object is empty, the private is still empty
-                            if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
-                                continue;
-                            }
-                            if ( name !== "toJSON" ) {
-                                return false;
-                            }
-                        }
-
-                        return true;
-                    }
-
-
-
-
-                    function handleQueueMarkDefer( elem, type, src ) {
-                        var deferDataKey = type + "defer",
-                            queueDataKey = type + "queue",
-                            markDataKey = type + "mark",
-                            defer = jQuery._data( elem, deferDataKey );
-                        if ( defer &&
-                            ( src === "queue" || !jQuery._data(elem, queueDataKey) ) &&
-                            ( src === "mark" || !jQuery._data(elem, markDataKey) ) ) {
-                            // Give room for hard-coded callbacks to fire first
-                            // and eventually mark/queue something else on the element
-                            setTimeout( function() {
-                                if ( !jQuery._data( elem, queueDataKey ) &&
-                                    !jQuery._data( elem, markDataKey ) ) {
-                                    jQuery.removeData( elem, deferDataKey, true );
-                                    defer.fire();
-                                }
-                            }, 0 );
-                        }
-                    }
-
-                    jQuery.extend({
-
-                        _mark: function( elem, type ) {
-                            if ( elem ) {
-                                type = ( type || "fx" ) + "mark";
-                                jQuery._data( elem, type, (jQuery._data( elem, type ) || 0) + 1 );
-                            }
-                        },
-
-                        _unmark: function( force, elem, type ) {
-                            if ( force !== true ) {
-                                type = elem;
-                                elem = force;
-                                force = false;
-                            }
-                            if ( elem ) {
-                                type = type || "fx";
-                                var key = type + "mark",
-                                    count = force ? 0 : ( (jQuery._data( elem, key ) || 1) - 1 );
-                                if ( count ) {
-                                    jQuery._data( elem, key, count );
-                                } else {
-                                    jQuery.removeData( elem, key, true );
-                                    handleQueueMarkDefer( elem, type, "mark" );
-                                }
-                            }
-                        },
-
-                        queue: function( elem, type, data ) {
-                            var q;
-                            if ( elem ) {
-                                type = ( type || "fx" ) + "queue";
-                                q = jQuery._data( elem, type );
-
-                                // Speed up dequeue by getting out quickly if this is just a lookup
-                                if ( data ) {
-                                    if ( !q || jQuery.isArray(data) ) {
-                                        q = jQuery._data( elem, type, jQuery.makeArray(data) );
-                                    } else {
-                                        q.push( data );
-                                    }
-                                }
-                                return q || [];
-                            }
-                        },
-
-                        dequeue: function( elem, type ) {
-                            type = type || "fx";
-
-                            var queue = jQuery.queue( elem, type ),
-                                fn = queue.shift(),
-                                hooks = {};
-
-                            // If the fx queue is dequeued, always remove the progress sentinel
-                            if ( fn === "inprogress" ) {
-                                fn = queue.shift();
-                            }
-
-                            if ( fn ) {
-                                // Add a progress sentinel to prevent the fx queue from being
-                                // automatically dequeued
-                                if ( type === "fx" ) {
-                                    queue.unshift( "inprogress" );
-                                }
-
-                                jQuery._data( elem, type + ".run", hooks );
-                                fn.call( elem, function() {
-                                    jQuery.dequeue( elem, type );
-                                }, hooks );
-                            }
-
-                            if ( !queue.length ) {
-                                jQuery.removeData( elem, type + "queue " + type + ".run", true );
-                                handleQueueMarkDefer( elem, type, "queue" );
-                            }
-                        }
-                    });
-
-                    jQuery.fn.extend({
-                        queue: function( type, data ) {
-                            var setter = 2;
-
-                            if ( typeof type !== "string" ) {
-                                data = type;
-                                type = "fx";
-                                setter--;
-                            }
-
-                            if ( arguments.length < setter ) {
-                                return jQuery.queue( this[0], type );
-                            }
-
-                            return data === undefined ?
-                                this :
-                                this.each(function() {
-                                    var queue = jQuery.queue( this, type, data );
-
-                                    if ( type === "fx" && queue[0] !== "inprogress" ) {
-                                        jQuery.dequeue( this, type );
-                                    }
-                                });
-                        },
-                        dequeue: function( type ) {
-                            return this.each(function() {
-                                jQuery.dequeue( this, type );
-                            });
-                        },
-                        // Based off of the plugin by Clint Helfers, with permission.
-                        // http://blindsignals.com/index.php/2009/07/jquery-delay/
-                        delay: function( time, type ) {
-                            time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-                            type = type || "fx";
-
-                            return this.queue( type, function( next, hooks ) {
-                                var timeout = setTimeout( next, time );
-                                hooks.stop = function() {
-                                    clearTimeout( timeout );
-                                };
-                            });
-                        },
-                        clearQueue: function( type ) {
-                            return this.queue( type || "fx", [] );
-                        },
-                        // Get a promise resolved when queues of a certain type
-                        // are emptied (fx is the type by default)
-                        promise: function( type, object ) {
-                            if ( typeof type !== "string" ) {
-                                object = type;
-                                type = undefined;
-                            }
-                            type = type || "fx";
-                            var defer = jQuery.Deferred(),
-                                elements = this,
-                                i = elements.length,
-                                count = 1,
-                                deferDataKey = type + "defer",
-                                queueDataKey = type + "queue",
-                                markDataKey = type + "mark",
-                                tmp;
-                            function resolve() {
-                                if ( !( --count ) ) {
-                                    defer.resolveWith( elements, [ elements ] );
-                                }
-                            }
-                            while( i-- ) {
-                                if (( tmp = jQuery.data( elements[ i ], deferDataKey, undefined, true ) ||
-                                    ( jQuery.data( elements[ i ], queueDataKey, undefined, true ) ||
-                                        jQuery.data( elements[ i ], markDataKey, undefined, true ) ) &&
-                                    jQuery.data( elements[ i ], deferDataKey, jQuery.Callbacks( "once memory" ), true ) )) {
-                                    count++;
-                                    tmp.add( resolve );
-                                }
-                            }
-                            resolve();
-                            return defer.promise( object );
-                        }
-                    });
-
-
-
-
-                    var rclass = /[\n\t\r]/g,
-                        rspace = /\s+/,
-                        rreturn = /\r/g,
-                        rtype = /^(?:button|input)$/i,
-                        rfocusable = /^(?:button|input|object|select|textarea)$/i,
-                        rclickable = /^a(?:rea)?$/i,
-                        rboolean = /^(?:autofocus|autoplay|async|checked|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped|selected)$/i,
-                        getSetAttribute = jQuery.support.getSetAttribute,
-                        nodeHook, boolHook, fixSpecified;
-
-                    jQuery.fn.extend({
-                        attr: function( name, value ) {
-                            return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
-                        },
-
-                        removeAttr: function( name ) {
-                            return this.each(function() {
-                                jQuery.removeAttr( this, name );
-                            });
-                        },
-
-                        prop: function( name, value ) {
-                            return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
-                        },
-
-                        removeProp: function( name ) {
-                            name = jQuery.propFix[ name ] || name;
-                            return this.each(function() {
-                                // try/catch handles cases where IE balks (such as removing a property on window)
-                                try {
-                                    this[ name ] = undefined;
-                                    delete this[ name ];
-                                } catch( e ) {}
-                            });
-                        },
-
-                        addClass: function( value ) {
-                            var classNames, i, l, elem,
-                                setClass, c, cl;
-
-                            if ( jQuery.isFunction( value ) ) {
-                                return this.each(function( j ) {
-                                    jQuery( this ).addClass( value.call(this, j, this.className) );
-                                });
-                            }
-
-                            if ( value && typeof value === "string" ) {
-                                classNames = value.split( rspace );
-
-                                for ( i = 0, l = this.length; i < l; i++ ) {
-                                    elem = this[ i ];
-
-                                    if ( elem.nodeType === 1 ) {
-                                        if ( !elem.className && classNames.length === 1 ) {
-                                            elem.className = value;
-
-                                        } else {
-                                            setClass = " " + elem.className + " ";
-
-                                            for ( c = 0, cl = classNames.length; c < cl; c++ ) {
-                                                if ( !~setClass.indexOf( " " + classNames[ c ] + " " ) ) {
-                                                    setClass += classNames[ c ] + " ";
-                                                }
-                                            }
-                                            elem.className = jQuery.trim( setClass );
-                                        }
-                                    }
-                                }
-                            }
-
-                            return this;
-                        },
-
-                        removeClass: function( value ) {
-                            var classNames, i, l, elem, className, c, cl;
-
-                            if ( jQuery.isFunction( value ) ) {
-                                return this.each(function( j ) {
-                                    jQuery( this ).removeClass( value.call(this, j, this.className) );
-                                });
-                            }
-
-                            if ( (value && typeof value === "string") || value === undefined ) {
-                                classNames = ( value || "" ).split( rspace );
-
-                                for ( i = 0, l = this.length; i < l; i++ ) {
-                                    elem = this[ i ];
-
-                                    if ( elem.nodeType === 1 && elem.className ) {
-                                        if ( value ) {
-                                            className = (" " + elem.className + " ").replace( rclass, " " );
-                                            for ( c = 0, cl = classNames.length; c < cl; c++ ) {
-                                                className = className.replace(" " + classNames[ c ] + " ", " ");
-                                            }
-                                            elem.className = jQuery.trim( className );
-
-                                        } else {
-                                            elem.className = "";
-                                        }
-                                    }
-                                }
-                            }
-
-                            return this;
-                        },
-
-                        toggleClass: function( value, stateVal ) {
-                            var type = typeof value,
-                                isBool = typeof stateVal === "boolean";
-
-                            if ( jQuery.isFunction( value ) ) {
-                                return this.each(function( i ) {
-                                    jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
-                                });
-                            }
-
-                            return this.each(function() {
-                                if ( type === "string" ) {
-                                    // toggle individual class names
-                                    var className,
-                                        i = 0,
-                                        self = jQuery( this ),
-                                        state = stateVal,
-                                        classNames = value.split( rspace );
-
-                                    while ( (className = classNames[ i++ ]) ) {
-                                        // check each className given, space seperated list
-                                        state = isBool ? state : !self.hasClass( className );
-                                        self[ state ? "addClass" : "removeClass" ]( className );
-                                    }
-
-                                } else if ( type === "undefined" || type === "boolean" ) {
-                                    if ( this.className ) {
-                                        // store className if set
-                                        jQuery._data( this, "__className__", this.className );
-                                    }
-
-                                    // toggle whole className
-                                    this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
-                                }
-                            });
-                        },
-
-                        hasClass: function( selector ) {
-                            var className = " " + selector + " ",
-                                i = 0,
-                                l = this.length;
-                            for ( ; i < l; i++ ) {
-                                if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) > -1 ) {
-                                    return true;
-                                }
-                            }
-
-                            return false;
-                        },
-
-                        val: function( value ) {
-                            var hooks, ret, isFunction,
-                                elem = this[0];
-
-                            if ( !arguments.length ) {
-                                if ( elem ) {
-                                    hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-                                    if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
-                                        return ret;
-                                    }
-
-                                    ret = elem.value;
-
-                                    return typeof ret === "string" ?
-                                        // handle most common string cases
-                                        ret.replace(rreturn, "") :
-                                        // handle cases where value is null/undef or number
-                                        ret == null ? "" : ret;
-                                }
-
-                                return;
-                            }
-
-                            isFunction = jQuery.isFunction( value );
-
-                            return this.each(function( i ) {
-                                var self = jQuery(this), val;
-
-                                if ( this.nodeType !== 1 ) {
-                                    return;
-                                }
-
-                                if ( isFunction ) {
-                                    val = value.call( this, i, self.val() );
-                                } else {
-                                    val = value;
-                                }
-
-                                // Treat null/undefined as ""; convert numbers to string
-                                if ( val == null ) {
-                                    val = "";
-                                } else if ( typeof val === "number" ) {
-                                    val += "";
-                                } else if ( jQuery.isArray( val ) ) {
-                                    val = jQuery.map(val, function ( value ) {
-                                        return value == null ? "" : value + "";
-                                    });
-                                }
-
-                                hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-                                // If set returns undefined, fall back to normal setting
-                                if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
-                                    this.value = val;
-                                }
-                            });
-                        }
-                    });
-
-                    jQuery.extend({
-                        valHooks: {
-                            option: {
-                                get: function( elem ) {
-                                    // attributes.value is undefined in Blackberry 4.7 but
-                                    // uses .value. See #6932
-                                    var val = elem.attributes.value;
-                                    return !val || val.specified ? elem.value : elem.text;
-                                }
-                            },
-                            select: {
-                                get: function( elem ) {
-                                    var value, i, max, option,
-                                        index = elem.selectedIndex,
-                                        values = [],
-                                        options = elem.options,
-                                        one = elem.type === "select-one";
-
-                                    // Nothing was selected
-                                    if ( index < 0 ) {
-                                        return null;
-                                    }
-
-                                    // Loop through all the selected options
-                                    i = one ? index : 0;
-                                    max = one ? index + 1 : options.length;
-                                    for ( ; i < max; i++ ) {
-                                        option = options[ i ];
-
-                                        // Don't return options that are disabled or in a disabled optgroup
-                                        if ( option.selected && (jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null) &&
-                                            (!option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" )) ) {
-
-                                            // Get the specific value for the option
-                                            value = jQuery( option ).val();
-
-                                            // We don't need an array for one selects
-                                            if ( one ) {
-                                                return value;
-                                            }
-
-                                            // Multi-Selects return an array
-                                            values.push( value );
-                                        }
-                                    }
-
-                                    // Fixes Bug #2551 -- select.val() broken in IE after form.reset()
-                                    if ( one && !values.length && options.length ) {
-                                        return jQuery( options[ index ] ).val();
-                                    }
-
-                                    return values;
-                                },
-
-                                set: function( elem, value ) {
-                                    var values = jQuery.makeArray( value );
-
-                                    jQuery(elem).find("option").each(function() {
-                                        this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
-                                    });
-
-                                    if ( !values.length ) {
-                                        elem.selectedIndex = -1;
-                                    }
-                                    return values;
-                                }
-                            }
-                        },
-
-                        attrFn: {
-                            val: true,
-                            css: true,
-                            html: true,
-                            text: true,
-                            data: true,
-                            width: true,
-                            height: true,
-                            offset: true
-                        },
-
-                        attr: function( elem, name, value, pass ) {
-                            var ret, hooks, notxml,
-                                nType = elem.nodeType;
-
-                            // don't get/set attributes on text, comment and attribute nodes
-                            if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-                                return;
-                            }
-
-                            if ( pass && name in jQuery.attrFn ) {
-                                return jQuery( elem )[ name ]( value );
-                            }
-
-                            // Fallback to prop when attributes are not supported
-                            if ( typeof elem.getAttribute === "undefined" ) {
-                                return jQuery.prop( elem, name, value );
-                            }
-
-                            notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-                            // All attributes are lowercase
-                            // Grab necessary hook if one is defined
-                            if ( notxml ) {
-                                name = name.toLowerCase();
-                                hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
-                            }
-
-                            if ( value !== undefined ) {
-
-                                if ( value === null ) {
-                                    jQuery.removeAttr( elem, name );
-
-
-                                } else if ( hooks && "set" in hooks && notxml && (ret = hooks.set( elem, value, name )) !== undefined ) {
-                                    return ret;
-
-                                } else {
-                                    elem.setAttribute( name, "" + value );
-                                    return value;
-                                }
-
-                            } else if ( hooks && "get" in hooks && notxml && (ret = hooks.get( elem, name )) !== null ) {
-                                return ret;
-
-                            } else {
-
-                                ret = elem.getAttribute( name );
-
-                                // Non-existent attributes return null, we normalize to undefined
-                                return ret === null ?
-                                    undefined :
-                                    ret;
-                            }
-                        },
-
-                        removeAttr: function( elem, value ) {
-                            var propName, attrNames, name, l, isBool,
-                                i = 0;
-
-                            if ( value && elem.nodeType === 1 ) {
-                                attrNames = value.toLowerCase().split( rspace );
-                                l = attrNames.length;
-
-                                for ( ; i < l; i++ ) {
-                                    name = attrNames[ i ];
-
-                                    if ( name ) {
-                                        propName = jQuery.propFix[ name ] || name;
-                                        isBool = rboolean.test( name );
-
-                                        // See #9699 for explanation of this approach (setting first, then removal)
-                                        // Do not do this for boolean attributes (see #10870)
-                                        if ( !isBool ) {
-                                            jQuery.attr( elem, name, "" );
-                                        }
-                                        elem.removeAttribute( getSetAttribute ? name : propName );
-
-                                        // Set corresponding property to false for boolean attributes
-                                        if ( isBool && propName in elem ) {
-                                            elem[ propName ] = false;
-                                        }
-                                    }
-                                }
-                            }
-                        },
-
-                        attrHooks: {
-                            type: {
-                                set: function( elem, value ) {
-                                    // We can't allow the type property to be changed (since it causes problems in IE)
-                                    if ( rtype.test( elem.nodeName ) && elem.parentNode ) {
-                                        jQuery.error( "type property can't be changed" );
-                                    } else if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
-                                        // Setting the type on a radio button after the value resets the value in IE6-9
-                                        // Reset value to it's default in case type is set after value
-                                        // This is for element creation
-                                        var val = elem.value;
-                                        elem.setAttribute( "type", value );
-                                        if ( val ) {
-                                            elem.value = val;
-                                        }
-                                        return value;
-                                    }
-                                }
-                            },
-                            // Use the value property for back compat
-                            // Use the nodeHook for button elements in IE6/7 (#1954)
-                            value: {
-                                get: function( elem, name ) {
-                                    if ( nodeHook && jQuery.nodeName( elem, "button" ) ) {
-                                        return nodeHook.get( elem, name );
-                                    }
-                                    return name in elem ?
-                                        elem.value :
-                                        null;
-                                },
-                                set: function( elem, value, name ) {
-                                    if ( nodeHook && jQuery.nodeName( elem, "button" ) ) {
-                                        return nodeHook.set( elem, value, name );
-                                    }
-                                    // Does not return so that setAttribute is also used
-                                    elem.value = value;
-                                }
-                            }
-                        },
-
-                        propFix: {
-                            tabindex: "tabIndex",
-                            readonly: "readOnly",
-                            "for": "htmlFor",
-                            "class": "className",
-                            maxlength: "maxLength",
-                            cellspacing: "cellSpacing",
-                            cellpadding: "cellPadding",
-                            rowspan: "rowSpan",
-                            colspan: "colSpan",
-                            usemap: "useMap",
-                            frameborder: "frameBorder",
-                            contenteditable: "contentEditable"
-                        },
-
-                        prop: function( elem, name, value ) {
-                            var ret, hooks, notxml,
-                                nType = elem.nodeType;
-
-                            // don't get/set properties on text, comment and attribute nodes
-                            if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-                                return;
-                            }
-
-                            notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-                            if ( notxml ) {
-                                // Fix name and attach hooks
-                                name = jQuery.propFix[ name ] || name;
-                                hooks = jQuery.propHooks[ name ];
-                            }
-
-                            if ( value !== undefined ) {
-                                if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-                                    return ret;
-
-                                } else {
-                                    return ( elem[ name ] = value );
-                                }
-
-                            } else {
-                                if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-                                    return ret;
-
-                                } else {
-                                    return elem[ name ];
-                                }
-                            }
-                        },
-
-                        propHooks: {
-                            tabIndex: {
-                                get: function( elem ) {
-                                    // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
-                                    // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
-                                    var attributeNode = elem.getAttributeNode("tabindex");
-
-                                    return attributeNode && attributeNode.specified ?
-                                        parseInt( attributeNode.value, 10 ) :
-                                        rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
-                                            0 :
-                                            undefined;
-                                }
-                            }
-                        }
-                    });
-
-// Add the tabIndex propHook to attrHooks for back-compat (different case is intentional)
-                    jQuery.attrHooks.tabindex = jQuery.propHooks.tabIndex;
-
-// Hook for boolean attributes
-                    boolHook = {
-                        get: function( elem, name ) {
-                            // Align boolean attributes with corresponding properties
-                            // Fall back to attribute presence where some booleans are not supported
-                            var attrNode,
-                                property = jQuery.prop( elem, name );
-                            return property === true || typeof property !== "boolean" && ( attrNode = elem.getAttributeNode(name) ) && attrNode.nodeValue !== false ?
-                                name.toLowerCase() :
-                                undefined;
-                        },
-                        set: function( elem, value, name ) {
-                            var propName;
-                            if ( value === false ) {
-                                // Remove boolean attributes when set to false
-                                jQuery.removeAttr( elem, name );
-                            } else {
-                                // value is true since we know at this point it's type boolean and not false
-                                // Set boolean attributes to the same name and set the DOM property
-                                propName = jQuery.propFix[ name ] || name;
-                                if ( propName in elem ) {
-                                    // Only set the IDL specifically if it already exists on the element
-                                    elem[ propName ] = true;
-                                }
-
-                                elem.setAttribute( name, name.toLowerCase() );
-                            }
-                            return name;
-                        }
-                    };
-
-// IE6/7 do not support getting/setting some attributes with get/setAttribute
-                    if ( !getSetAttribute ) {
-
-                        fixSpecified = {
-                            name: true,
-                            id: true,
-                            coords: true
-                        };
-
-                        // Use this for any attribute in IE6/7
-                        // This fixes almost every IE6/7 issue
-                        nodeHook = jQuery.valHooks.button = {
-                            get: function( elem, name ) {
-                                var ret;
-                                ret = elem.getAttributeNode( name );
-                                return ret && ( fixSpecified[ name ] ? ret.nodeValue !== "" : ret.specified ) ?
-                                    ret.nodeValue :
-                                    undefined;
-                            },
-                            set: function( elem, value, name ) {
-                                // Set the existing or create a new attribute node
-                                var ret = elem.getAttributeNode( name );
-                                if ( !ret ) {
-                                    ret = document.createAttribute( name );
-                                    elem.setAttributeNode( ret );
-                                }
-                                return ( ret.nodeValue = value + "" );
-                            }
-                        };
-
-                        // Apply the nodeHook to tabindex
-                        jQuery.attrHooks.tabindex.set = nodeHook.set;
-
-                        // Set width and height to auto instead of 0 on empty string( Bug #8150 )
-                        // This is for removals
-                        jQuery.each([ "width", "height" ], function( i, name ) {
-                            jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-                                set: function( elem, value ) {
-                                    if ( value === "" ) {
-                                        elem.setAttribute( name, "auto" );
-                                        return value;
-                                    }
-                                }
-                            });
-                        });
-
-                        // Set contenteditable to false on removals(#10429)
-                        // Setting to empty string throws an error as an invalid value
-                        jQuery.attrHooks.contenteditable = {
-                            get: nodeHook.get,
-                            set: function( elem, value, name ) {
-                                if ( value === "" ) {
-                                    value = "false";
-                                }
-                                nodeHook.set( elem, value, name );
-                            }
-                        };
-                    }
-
-
-// Some attributes require a special call on IE
-                    if ( !jQuery.support.hrefNormalized ) {
-                        jQuery.each([ "href", "src", "width", "height" ], function( i, name ) {
-                            jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-                                get: function( elem ) {
-                                    var ret = elem.getAttribute( name, 2 );
-                                    return ret === null ? undefined : ret;
-                                }
-                            });
-                        });
-                    }
-
-                    if ( !jQuery.support.style ) {
-                        jQuery.attrHooks.style = {
-                            get: function( elem ) {
-                                // Return undefined in the case of empty string
-                                // Normalize to lowercase since IE uppercases css property names
-                                return elem.style.cssText.toLowerCase() || undefined;
-                            },
-                            set: function( elem, value ) {
-                                return ( elem.style.cssText = "" + value );
-                            }
-                        };
-                    }
-
-// Safari mis-reports the default selected property of an option
-// Accessing the parent's selectedIndex property fixes it
-                    if ( !jQuery.support.optSelected ) {
-                        jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
-                            get: function( elem ) {
-                                var parent = elem.parentNode;
-
-                                if ( parent ) {
-                                    parent.selectedIndex;
-
-                                    // Make sure that it also works with optgroups, see #5701
-                                    if ( parent.parentNode ) {
-                                        parent.parentNode.selectedIndex;
-                                    }
-                                }
-                                return null;
-                            }
-                        });
-                    }
-
-// IE6/7 call enctype encoding
-                    if ( !jQuery.support.enctype ) {
-                        jQuery.propFix.enctype = "encoding";
-                    }
-
-// Radios and checkboxes getter/setter
-                    if ( !jQuery.support.checkOn ) {
-                        jQuery.each([ "radio", "checkbox" ], function() {
-                            jQuery.valHooks[ this ] = {
-                                get: function( elem ) {
-                                    // Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
-                                    return elem.getAttribute("value") === null ? "on" : elem.value;
-                                }
-                            };
-                        });
-                    }
-                    jQuery.each([ "radio", "checkbox" ], function() {
-                        jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
-                            set: function( elem, value ) {
-                                if ( jQuery.isArray( value ) ) {
-                                    return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
-                                }
-                            }
-                        });
-                    });
-
-
-
-
-                    var rformElems = /^(?:textarea|input|select)$/i,
-                        rtypenamespace = /^([^\.]*)?(?:\.(.+))?$/,
-                        rhoverHack = /(?:^|\s)hover(\.\S+)?\b/,
-                        rkeyEvent = /^key/,
-                        rmouseEvent = /^(?:mouse|contextmenu)|click/,
-                        rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-                        rquickIs = /^(\w*)(?:#([\w\-]+))?(?:\.([\w\-]+))?$/,
-                        quickParse = function( selector ) {
-                            var quick = rquickIs.exec( selector );
-                            if ( quick ) {
-                                //   0  1    2   3
-                                // [ _, tag, id, class ]
-                                quick[1] = ( quick[1] || "" ).toLowerCase();
-                                quick[3] = quick[3] && new RegExp( "(?:^|\\s)" + quick[3] + "(?:\\s|$)" );
-                            }
-                            return quick;
-                        },
-                        quickIs = function( elem, m ) {
-                            var attrs = elem.attributes || {};
-                            return (
-                                (!m[1] || elem.nodeName.toLowerCase() === m[1]) &&
-                                (!m[2] || (attrs.id || {}).value === m[2]) &&
-                                (!m[3] || m[3].test( (attrs[ "class" ] || {}).value ))
-                            );
-                        },
-                        hoverHack = function( events ) {
-                            return jQuery.event.special.hover ? events : events.replace( rhoverHack, "mouseenter$1 mouseleave$1" );
-                        };
-
-                    /*
- * Helper functions for managing events -- not part of the public interface.
- * Props to Dean Edwards' addEvent library for many of the ideas.
- */
-                    jQuery.event = {
-
-                        add: function( elem, types, handler, data, selector ) {
-
-                            var elemData, eventHandle, events,
-                                t, tns, type, namespaces, handleObj,
-                                handleObjIn, quick, handlers, special;
-
-                            // Don't attach events to noData or text/comment nodes (allow plain objects tho)
-                            if ( elem.nodeType === 3 || elem.nodeType === 8 || !types || !handler || !(elemData = jQuery._data( elem )) ) {
-                                return;
-                            }
-
-                            // Caller can pass in an object of custom data in lieu of the handler
-                            if ( handler.handler ) {
-                                handleObjIn = handler;
-                                handler = handleObjIn.handler;
-                                selector = handleObjIn.selector;
-                            }
-
-                            // Make sure that the handler has a unique ID, used to find/remove it later
-                            if ( !handler.guid ) {
-                                handler.guid = jQuery.guid++;
-                            }
-
-                            // Init the element's event structure and main handler, if this is the first
-                            events = elemData.events;
-                            if ( !events ) {
-                                elemData.events = events = {};
-                            }
-                            eventHandle = elemData.handle;
-                            if ( !eventHandle ) {
-                                elemData.handle = eventHandle = function( e ) {
-                                    // Discard the second event of a jQuery.event.trigger() and
-                                    // when an event is called after a page has unloaded
-                                    return typeof jQuery !== "undefined" && (!e || jQuery.event.triggered !== e.type) ?
-                                        jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
-                                        undefined;
-                                };
-                                // Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
-                                eventHandle.elem = elem;
-                            }
-
-                            // Handle multiple events separated by a space
-                            // jQuery(...).bind("mouseover mouseout", fn);
-                            types = jQuery.trim( hoverHack(types) ).split( " " );
-                            for ( t = 0; t < types.length; t++ ) {
-
-                                tns = rtypenamespace.exec( types[t] ) || [];
-                                type = tns[1];
-                                namespaces = ( tns[2] || "" ).split( "." ).sort();
-
-                                // If event changes its type, use the special event handlers for the changed type
-                                special = jQuery.event.special[ type ] || {};
-
-                                // If selector defined, determine special event api type, otherwise given type
-                                type = ( selector ? special.delegateType : special.bindType ) || type;
-
-                                // Update special based on newly reset type
-                                special = jQuery.event.special[ type ] || {};
-
-                                // handleObj is passed to all event handlers
-                                handleObj = jQuery.extend({
-                                    type: type,
-                                    origType: tns[1],
-                                    data: data,
-                                    handler: handler,
-                                    guid: handler.guid,
-                                    selector: selector,
-                                    quick: selector && quickParse( selector ),
-                                    namespace: namespaces.join(".")
-                                }, handleObjIn );
-
-                                // Init the event handler queue if we're the first
-                                handlers = events[ type ];
-                                if ( !handlers ) {
-                                    handlers = events[ type ] = [];
-                                    handlers.delegateCount = 0;
-
-                                    // Only use addEventListener/attachEvent if the special events handler returns false
-                                    if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-                                        // Bind the global event handler to the element
-                                        if ( elem.addEventListener ) {
-                                            elem.addEventListener( type, eventHandle, false );
-
-                                        } else if ( elem.attachEvent ) {
-                                            elem.attachEvent( "on" + type, eventHandle );
-                                        }
-                                    }
-                                }
-
-                                if ( special.add ) {
-                                    special.add.call( elem, handleObj );
-
-                                    if ( !handleObj.handler.guid ) {
-                                        handleObj.handler.guid = handler.guid;
-                                    }
-                                }
-
-                                // Add to the element's handler list, delegates in front
-                                if ( selector ) {
-                                    handlers.splice( handlers.delegateCount++, 0, handleObj );
-                                } else {
-                                    handlers.push( handleObj );
-                                }
-
-                                // Keep track of which events have ever been used, for event optimization
-                                jQuery.event.global[ type ] = true;
-                            }
-
-                            // Nullify elem to prevent memory leaks in IE
-                            elem = null;
-                        },
-
-                        global: {},
-
-                        // Detach an event or set of events from an element
-                        remove: function( elem, types, handler, selector, mappedTypes ) {
-
-                            var elemData = jQuery.hasData( elem ) && jQuery._data( elem ),
-                                t, tns, type, origType, namespaces, origCount,
-                                j, events, special, handle, eventType, handleObj;
-
-                            if ( !elemData || !(events = elemData.events) ) {
-                                return;
-                            }
-
-                            // Once for each type.namespace in types; type may be omitted
-                            types = jQuery.trim( hoverHack( types || "" ) ).split(" ");
-                            for ( t = 0; t < types.length; t++ ) {
-                                tns = rtypenamespace.exec( types[t] ) || [];
-                                type = origType = tns[1];
-                                namespaces = tns[2];
-
-                                // Unbind all events (on this namespace, if provided) for the element
-                                if ( !type ) {
-                                    for ( type in events ) {
-                                        jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-                                    }
-                                    continue;
-                                }
-
-                                special = jQuery.event.special[ type ] || {};
-                                type = ( selector? special.delegateType : special.bindType ) || type;
-                                eventType = events[ type ] || [];
-                                origCount = eventType.length;
-                                namespaces = namespaces ? new RegExp("(^|\\.)" + namespaces.split(".").sort().join("\\.(?:.*\\.)?") + "(\\.|$)") : null;
-
-                                // Remove matching events
-                                for ( j = 0; j < eventType.length; j++ ) {
-                                    handleObj = eventType[ j ];
-
-                                    if ( ( mappedTypes || origType === handleObj.origType ) &&
-                                        ( !handler || handler.guid === handleObj.guid ) &&
-                                        ( !namespaces || namespaces.test( handleObj.namespace ) ) &&
-                                        ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
-                                        eventType.splice( j--, 1 );
-
-                                        if ( handleObj.selector ) {
-                                            eventType.delegateCount--;
-                                        }
-                                        if ( special.remove ) {
-                                            special.remove.call( elem, handleObj );
-                                        }
-                                    }
-                                }
-
-                                // Remove generic event handler if we removed something and no more handlers exist
-                                // (avoids potential for endless recursion during removal of special event handlers)
-                                if ( eventType.length === 0 && origCount !== eventType.length ) {
-                                    if ( !special.teardown || special.teardown.call( elem, namespaces ) === false ) {
-                                        jQuery.removeEvent( elem, type, elemData.handle );
-                                    }
-
-                                    delete events[ type ];
-                                }
-                            }
-
-                            // Remove the expando if it's no longer used
-                            if ( jQuery.isEmptyObject( events ) ) {
-                                handle = elemData.handle;
-                                if ( handle ) {
-                                    handle.elem = null;
-                                }
-
-                                // removeData also checks for emptiness and clears the expando if empty
-                                // so use it instead of delete
-                                jQuery.removeData( elem, [ "events", "handle" ], true );
-                            }
-                        },
-
-                        // Events that are safe to short-circuit if no handlers are attached.
-                        // Native DOM events should not be added, they may have inline handlers.
-                        customEvent: {
-                            "getData": true,
-                            "setData": true,
-                            "changeData": true
-                        },
-
-                        trigger: function( event, data, elem, onlyHandlers ) {
-                            // Don't do events on text and comment nodes
-                            if ( elem && (elem.nodeType === 3 || elem.nodeType === 8) ) {
-                                return;
-                            }
-
-                            // Event object or event type
-                            var type = event.type || event,
-                                namespaces = [],
-                                cache, exclusive, i, cur, old, ontype, special, handle, eventPath, bubbleType;
-
-                            // focus/blur morphs to focusin/out; ensure we're not firing them right now
-                            if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-                                return;
-                            }
-
-                            if ( type.indexOf( "!" ) >= 0 ) {
-                                // Exclusive events trigger only for the exact event (no namespaces)
-                                type = type.slice(0, -1);
-                                exclusive = true;
-                            }
-
-                            if ( type.indexOf( "." ) >= 0 ) {
-                                // Namespaced trigger; create a regexp to match event type in handle()
-                                namespaces = type.split(".");
-                                type = namespaces.shift();
-                                namespaces.sort();
-                            }
-
-                            if ( (!elem || jQuery.event.customEvent[ type ]) && !jQuery.event.global[ type ] ) {
-                                // No jQuery handlers for this event type, and it can't have inline handlers
-                                return;
-                            }
-
-                            // Caller can pass in an Event, Object, or just an event type string
-                            event = typeof event === "object" ?
-                                // jQuery.Event object
-                                event[ jQuery.expando ] ? event :
-                                    // Object literal
-                                    new jQuery.Event( type, event ) :
-                                // Just the event type (string)
-                                new jQuery.Event( type );
-
-                            event.type = type;
-                            event.isTrigger = true;
-                            event.exclusive = exclusive;
-                            event.namespace = namespaces.join( "." );
-                            event.namespace_re = event.namespace? new RegExp("(^|\\.)" + namespaces.join("\\.(?:.*\\.)?") + "(\\.|$)") : null;
-                            ontype = type.indexOf( ":" ) < 0 ? "on" + type : "";
-
-                            // Handle a global trigger
-                            if ( !elem ) {
-
-                                // TODO: Stop taunting the data cache; remove global events and always attach to document
-                                cache = jQuery.cache;
-                                for ( i in cache ) {
-                                    if ( cache[ i ].events && cache[ i ].events[ type ] ) {
-                                        jQuery.event.trigger( event, data, cache[ i ].handle.elem, true );
-                                    }
-                                }
-                                return;
-                            }
-
-                            // Clean up the event in case it is being reused
-                            event.result = undefined;
-                            if ( !event.target ) {
-                                event.target = elem;
-                            }
-
-                            // Clone any incoming data and prepend the event, creating the handler arg list
-                            data = data != null ? jQuery.makeArray( data ) : [];
-                            data.unshift( event );
-
-                            // Allow special events to draw outside the lines
-                            special = jQuery.event.special[ type ] || {};
-                            if ( special.trigger && special.trigger.apply( elem, data ) === false ) {
-                                return;
-                            }
-
-                            // Determine event propagation path in advance, per W3C events spec (#9951)
-                            // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-                            eventPath = [[ elem, special.bindType || type ]];
-                            if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
-
-                                bubbleType = special.delegateType || type;
-                                cur = rfocusMorph.test( bubbleType + type ) ? elem : elem.parentNode;
-                                old = null;
-                                for ( ; cur; cur = cur.parentNode ) {
-                                    eventPath.push([ cur, bubbleType ]);
-                                    old = cur;
-                                }
-
-                                // Only add window if we got to document (e.g., not plain obj or detached DOM)
-                                if ( old && old === elem.ownerDocument ) {
-                                    eventPath.push([ old.defaultView || old.parentWindow || window, bubbleType ]);
-                                }
-                            }
-
-                            // Fire handlers on the event path
-                            for ( i = 0; i < eventPath.length && !event.isPropagationStopped(); i++ ) {
-
-                                cur = eventPath[i][0];
-                                event.type = eventPath[i][1];
-
-                                handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
-                                if ( handle ) {
-                                    handle.apply( cur, data );
-                                }
-                                // Note that this is a bare JS function and not a jQuery handler
-                                handle = ontype && cur[ ontype ];
-                                if ( handle && jQuery.acceptData( cur ) && handle.apply( cur, data ) === false ) {
-                                    event.preventDefault();
-                                }
-                            }
-                            event.type = type;
-
-                            // If nobody prevented the default action, do it now
-                            if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-                                if ( (!special._default || special._default.apply( elem.ownerDocument, data ) === false) &&
-                                    !(type === "click" && jQuery.nodeName( elem, "a" )) && jQuery.acceptData( elem ) ) {
-
-                                    // Call a native DOM method on the target with the same name name as the event.
-                                    // Can't use an .isFunction() check here because IE6/7 fails that test.
-                                    // Don't do default actions on window, that's where global variables be (#6170)
-                                    // IE<9 dies on focus/blur to hidden element (#1486)
-                                    if ( ontype && elem[ type ] && ((type !== "focus" && type !== "blur") || event.target.offsetWidth !== 0) && !jQuery.isWindow( elem ) ) {
-
-                                        // Don't re-trigger an onFOO event when we call its FOO() method
-                                        old = elem[ ontype ];
-
-                                        if ( old ) {
-                                            elem[ ontype ] = null;
-                                        }
-
-                                        // Prevent re-triggering of the same event, since we already bubbled it above
-                                        jQuery.event.triggered = type;
-                                        elem[ type ]();
-                                        jQuery.event.triggered = undefined;
-
-                                        if ( old ) {
-                                            elem[ ontype ] = old;
-                                        }
-                                    }
-                                }
-                            }
-
-                            return event.result;
-                        },
-
-                        dispatch: function( event ) {
-
-                            // Make a writable jQuery.Event from the native event object
-                            event = jQuery.event.fix( event || window.event );
-
-                            var handlers = ( (jQuery._data( this, "events" ) || {} )[ event.type ] || []),
-                                delegateCount = handlers.delegateCount,
-                                args = [].slice.call( arguments, 0 ),
-                                run_all = !event.exclusive && !event.namespace,
-                                special = jQuery.event.special[ event.type ] || {},
-                                handlerQueue = [],
-                                i, j, cur, jqcur, ret, selMatch, matched, matches, handleObj, sel, related;
-
-                            // Use the fix-ed jQuery.Event rather than the (read-only) native event
-                            args[0] = event;
-                            event.delegateTarget = this;
-
-                            // Call the preDispatch hook for the mapped type, and let it bail if desired
-                            if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-                                return;
-                            }
-
-                            // Determine handlers that should run if there are delegated events
-                            // Avoid non-left-click bubbling in Firefox (#3861)
-                            if ( delegateCount && !(event.button && event.type === "click") ) {
-
-                                // Pregenerate a single jQuery object for reuse with .is()
-                                jqcur = jQuery(this);
-                                jqcur.context = this.ownerDocument || this;
-
-                                for ( cur = event.target; cur != this; cur = cur.parentNode || this ) {
-
-                                    // Don't process events on disabled elements (#6911, #8165)
-                                    if ( cur.disabled !== true ) {
-                                        selMatch = {};
-                                        matches = [];
-                                        jqcur[0] = cur;
-                                        for ( i = 0; i < delegateCount; i++ ) {
-                                            handleObj = handlers[ i ];
-                                            sel = handleObj.selector;
-
-                                            if ( selMatch[ sel ] === undefined ) {
-                                                selMatch[ sel ] = (
-                                                    handleObj.quick ? quickIs( cur, handleObj.quick ) : jqcur.is( sel )
-                                                );
-                                            }
-                                            if ( selMatch[ sel ] ) {
-                                                matches.push( handleObj );
-                                            }
-                                        }
-                                        if ( matches.length ) {
-                                            handlerQueue.push({ elem: cur, matches: matches });
-                                        }
-                                    }
-                                }
-                            }
-
-                            // Add the remaining (directly-bound) handlers
-                            if ( handlers.length > delegateCount ) {
-                                handlerQueue.push({ elem: this, matches: handlers.slice( delegateCount ) });
-                            }
-
-                            // Run delegates first; they may want to stop propagation beneath us
-                            for ( i = 0; i < handlerQueue.length && !event.isPropagationStopped(); i++ ) {
-                                matched = handlerQueue[ i ];
-                                event.currentTarget = matched.elem;
-
-                                for ( j = 0; j < matched.matches.length && !event.isImmediatePropagationStopped(); j++ ) {
-                                    handleObj = matched.matches[ j ];
-
-                                    // Triggered event must either 1) be non-exclusive and have no namespace, or
-                                    // 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
-                                    if ( run_all || (!event.namespace && !handleObj.namespace) || event.namespace_re && event.namespace_re.test( handleObj.namespace ) ) {
-
-                                        event.data = handleObj.data;
-                                        event.handleObj = handleObj;
-
-                                        ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
-                                            .apply( matched.elem, args );
-
-                                        if ( ret !== undefined ) {
-                                            event.result = ret;
-                                            if ( ret === false ) {
-                                                event.preventDefault();
-                                                event.stopPropagation();
-                                            }
-                                        }
-                                    }
-                                }
-                            }
-
-                            // Call the postDispatch hook for the mapped type
-                            if ( special.postDispatch ) {
-                                special.postDispatch.call( this, event );
-                            }
-
-                            return event.result;
-                        },
-
-                        // Includes some event props shared by KeyEvent and MouseEvent
-                        // *** attrChange attrName relatedNode srcElement  are not normalized, non-W3C, deprecated, will be removed in 1.8 ***
-                        props: "attrChange attrName relatedNode srcElement altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
-
-                        fixHooks: {},
-
-                        keyHooks: {
-                            props: "char charCode key keyCode".split(" "),
-                            filter: function( event, original ) {
-
-                                // Add which for key events
-                                if ( event.which == null ) {
-                                    event.which = original.charCode != null ? original.charCode : original.keyCode;
-                                }
-
-                                return event;
-                            }
-                        },
-
-                        mouseHooks: {
-                            props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
-                            filter: function( event, original ) {
-                                var eventDoc, doc, body,
-                                    button = original.button,
-                                    fromElement = original.fromElement;
-
-                                // Calculate pageX/Y if missing and clientX/Y available
-                                if ( event.pageX == null && original.clientX != null ) {
-                                    eventDoc = event.target.ownerDocument || document;
-                                    doc = eventDoc.documentElement;
-                                    body = eventDoc.body;
-
-                                    event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
-                                    event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
-                                }
-
-                                // Add relatedTarget, if necessary
-                                if ( !event.relatedTarget && fromElement ) {
-                                    event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
-                                }
-
-                                // Add which for click: 1 === left; 2 === middle; 3 === right
-                                // Note: button is not normalized, so don't use it
-                                if ( !event.which && button !== undefined ) {
-                                    event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
-                                }
-
-                                return event;
-                            }
-                        },
-
-                        fix: function( event ) {
-                            if ( event[ jQuery.expando ] ) {
-                                return event;
-                            }
-
-                            // Create a writable copy of the event object and normalize some properties
-                            var i, prop,
-                                originalEvent = event,
-                                fixHook = jQuery.event.fixHooks[ event.type ] || {},
-                                copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
-
-                            event = jQuery.Event( originalEvent );
-
-                            for ( i = copy.length; i; ) {
-                                prop = copy[ --i ];
-                                event[ prop ] = originalEvent[ prop ];
-                            }
-
-                            // Fix target property, if necessary (#1925, IE 6/7/8 & Safari2)
-                            if ( !event.target ) {
-                                event.target = originalEvent.srcElement || document;
-                            }
-
-                            // Target should not be a text node (#504, Safari)
-                            if ( event.target.nodeType === 3 ) {
-                                event.target = event.target.parentNode;
-                            }
-
-                            // For mouse/key events; add metaKey if it's not there (#3368, IE6/7/8)
-                            if ( event.metaKey === undefined ) {
-                                event.metaKey = event.ctrlKey;
-                            }
-
-                            return fixHook.filter? fixHook.filter( event, originalEvent ) : event;
-                        },
-
-                        special: {
-                            ready: {
-                                // Make sure the ready event is setup
-                                setup: jQuery.bindReady
-                            },
-
-                            load: {
-                                // Prevent triggered image.load events from bubbling to window.load
-                                noBubble: true
-                            },
-
-                            focus: {
-                                delegateType: "focusin"
-                            },
-                            blur: {
-                                delegateType: "focusout"
-                            },
-
-                            beforeunload: {
-                                setup: function( data, namespaces, eventHandle ) {
-                                    // We only want to do this special case on windows
-                                    if ( jQuery.isWindow( this ) ) {
-                                        this.onbeforeunload = eventHandle;
-                                    }
-                                },
-
-                                teardown: function( namespaces, eventHandle ) {
-                                    if ( this.onbeforeunload === eventHandle ) {
-                                        this.onbeforeunload = null;
-                                    }
-                                }
-                            }
-                        },
-
-                        simulate: function( type, elem, event, bubble ) {
-                            // Piggyback on a donor event to simulate a different one.
-                            // Fake originalEvent to avoid donor's stopPropagation, but if the
-                            // simulated event prevents default then we do the same on the donor.
-                            var e = jQuery.extend(
-                                new jQuery.Event(),
-                                event,
-                                { type: type,
-                                    isSimulated: true,
-                                    originalEvent: {}
-                                }
-                            );
-                            if ( bubble ) {
-                                jQuery.event.trigger( e, null, elem );
-                            } else {
-                                jQuery.event.dispatch.call( elem, e );
-                            }
-                            if ( e.isDefaultPrevented() ) {
-                                event.preventDefault();
-                            }
-                        }
-                    };
-
-// Some plugins are using, but it's undocumented/deprecated and will be removed.
-// The 1.7 special event interface should provide all the hooks needed now.
-                    jQuery.event.handle = jQuery.event.dispatch;
-
-                    jQuery.removeEvent = document.removeEventListener ?
-                        function( elem, type, handle ) {
-                            if ( elem.removeEventListener ) {
-                                elem.removeEventListener( type, handle, false );
-                            }
-                        } :
-                        function( elem, type, handle ) {
-                            if ( elem.detachEvent ) {
-                                elem.detachEvent( "on" + type, handle );
-                            }
-                        };
-
-                    jQuery.Event = function( src, props ) {
-                        // Allow instantiation without the 'new' keyword
-                        if ( !(this instanceof jQuery.Event) ) {
-                            return new jQuery.Event( src, props );
-                        }
-
-                        // Event object
-                        if ( src && src.type ) {
-                            this.originalEvent = src;
-                            this.type = src.type;
-
-                            // Events bubbling up the document may have been marked as prevented
-                            // by a handler lower down the tree; reflect the correct value.
-                            this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
-                                src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
-
-                            // Event type
-                        } else {
-                            this.type = src;
-                        }
-
-                        // Put explicitly provided properties onto the event object
-                        if ( props ) {
-                            jQuery.extend( this, props );
-                        }
-
-                        // Create a timestamp if incoming event doesn't have one
-                        this.timeStamp = src && src.timeStamp || jQuery.now();
-
-                        // Mark it as fixed
-                        this[ jQuery.expando ] = true;
-                    };
-
-                    function returnFalse() {
-                        return false;
-                    }
-                    function returnTrue() {
-                        return true;
-                    }
-
-// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-                    jQuery.Event.prototype = {
-                        preventDefault: function() {
-                            this.isDefaultPrevented = returnTrue;
-
-                            var e = this.originalEvent;
-                            if ( !e ) {
-                                return;
-                            }
-
-                            // if preventDefault exists run it on the original event
-                            if ( e.preventDefault ) {
-                                e.preventDefault();
-
-                                // otherwise set the returnValue property of the original event to false (IE)
-                            } else {
-                                e.returnValue = false;
-                            }
-                        },
-                        stopPropagation: function() {
-                            this.isPropagationStopped = returnTrue;
-
-                            var e = this.originalEvent;
-                            if ( !e ) {
-                                return;
-                            }
-                            // if stopPropagation exists run it on the original event
-                            if ( e.stopPropagation ) {
-                                e.stopPropagation();
-                            }
-                            // otherwise set the cancelBubble property of the original event to true (IE)
-                            e.cancelBubble = true;
-                        },
-                        stopImmediatePropagation: function() {
-                            this.isImmediatePropagationStopped = returnTrue;
-                            this.stopPropagation();
-                        },
-                        isDefaultPrevented: returnFalse,
-                        isPropagationStopped: returnFalse,
-                        isImmediatePropagationStopped: returnFalse
-                    };
-
-// Create mouseenter/leave events using mouseover/out and event-time checks
-                    jQuery.each({
-                        mouseenter: "mouseover",
-                        mouseleave: "mouseout"
-                    }, function( orig, fix ) {
-                        jQuery.event.special[ orig ] = {
-                            delegateType: fix,
-                            bindType: fix,
-
-                            handle: function( event ) {
-                                var target = this,
-                                    related = event.relatedTarget,
-                                    handleObj = event.handleObj,
-                                    selector = handleObj.selector,
-                                    ret;
-
-                                // For mousenter/leave call the handler if related is outside the target.
-                                // NB: No relatedTarget if the mouse left/entered the browser window
-                                if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
-                                    event.type = handleObj.origType;
-                                    ret = handleObj.handler.apply( this, arguments );
-                                    event.type = fix;
-                                }
-                                return ret;
-                            }
-                        };
-                    });
-
-// IE submit delegation
-                    if ( !jQuery.support.submitBubbles ) {
-
-                        jQuery.event.special.submit = {
-                            setup: function() {
-                                // Only need this for delegated form submit events
-                                if ( jQuery.nodeName( this, "form" ) ) {
-                                    return false;
-                                }
-
-                                // Lazy-add a submit handler when a descendant form may potentially be submitted
-                                jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
-                                    // Node name check avoids a VML-related crash in IE (#9807)
-                                    var elem = e.target,
-                                        form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
-                                    if ( form && !form._submit_attached ) {
-                                        jQuery.event.add( form, "submit._submit", function( event ) {
-                                            event._submit_bubble = true;
-                                        });
-                                        form._submit_attached = true;
-                                    }
-                                });
-                                // return undefined since we don't need an event listener
-                            },
-
-                            postDispatch: function( event ) {
-                                // If form was submitted by the user, bubble the event up the tree
-                                if ( event._submit_bubble ) {
-                                    delete event._submit_bubble;
-                                    if ( this.parentNode && !event.isTrigger ) {
-                                        jQuery.event.simulate( "submit", this.parentNode, event, true );
-                                    }
-                                }
-                            },
-
-                            teardown: function() {
-                                // Only need this for delegated form submit events
-                                if ( jQuery.nodeName( this, "form" ) ) {
-                                    return false;
-                                }
-
-                                // Remove delegated handlers; cleanData eventually reaps submit handlers attached above
-                                jQuery.event.remove( this, "._submit" );
-                            }
-                        };
-                    }
-
-// IE change delegation and checkbox/radio fix
-                    if ( !jQuery.support.changeBubbles ) {
-
-                        jQuery.event.special.change = {
-
-                            setup: function() {
-
-                                if ( rformElems.test( this.nodeName ) ) {
-                                    // IE doesn't fire change on a check/radio until blur; trigger it on click
-                                    // after a propertychange. Eat the blur-change in special.change.handle.
-                                    // This still fires onchange a second time for check/radio after blur.
-                                    if ( this.type === "checkbox" || this.type === "radio" ) {
-                                        jQuery.event.add( this, "propertychange._change", function( event ) {
-                                            if ( event.originalEvent.propertyName === "checked" ) {
-                                                this._just_changed = true;
-                                            }
-                                        });
-                                        jQuery.event.add( this, "click._change", function( event ) {
-                                            if ( this._just_changed && !event.isTrigger ) {
-                                                this._just_changed = false;
-                                                jQuery.event.simulate( "change", this, event, true );
-                                            }
-                                        });
-                                    }
-                                    return false;
-                                }
-                                // Delegated event; lazy-add a change handler on descendant inputs
-                                jQuery.event.add( this, "beforeactivate._change", function( e ) {
-                                    var elem = e.target;
-
-                                    if ( rformElems.test( elem.nodeName ) && !elem._change_attached ) {
-                                        jQuery.event.add( elem, "change._change", function( event ) {
-                                            if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
-                                                jQuery.event.simulate( "change", this.parentNode, event, true );
-                                            }
-                                        });
-                                        elem._change_attached = true;
-                                    }
-                                });
-                            },
-
-                            handle: function( event ) {
-                                var elem = event.target;
-
-                                // Swallow native change events from checkbox/radio, we already triggered them above
-                                if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
-                                    return event.handleObj.handler.apply( this, arguments );
-                                }
-                            },
-
-                            teardown: function() {
-                                jQuery.event.remove( this, "._change" );
-
-                                return rformElems.test( this.nodeName );
-                            }
-                        };
-                    }
-
-// Create "bubbling" focus and blur events
-                    if ( !jQuery.support.focusinBubbles ) {
-                        jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-                            // Attach a single capturing handler while someone wants focusin/focusout
-                            var attaches = 0,
-                                handler = function( event ) {
-                                    jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
-                                };
-
-                            jQuery.event.special[ fix ] = {
-                                setup: function() {
-                                    if ( attaches++ === 0 ) {
-                                        document.addEventListener( orig, handler, true );
-                                    }
-                                },
-                                teardown: function() {
-                                    if ( --attaches === 0 ) {
-                                        document.removeEventListener( orig, handler, true );
-                                    }
-                                }
-                            };
-                        });
-                    }
-
-                    jQuery.fn.extend({
-
-                        on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
-                            var origFn, type;
-
-                            // Types can be a map of types/handlers
-                            if ( typeof types === "object" ) {
-                                // ( types-Object, selector, data )
-                                if ( typeof selector !== "string" ) { // && selector != null
-                                    // ( types-Object, data )
-                                    data = data || selector;
-                                    selector = undefined;
-                                }
-                                for ( type in types ) {
-                                    this.on( type, selector, data, types[ type ], one );
-                                }
-                                return this;
-                            }
-
-                            if ( data == null && fn == null ) {
-                                // ( types, fn )
-                                fn = selector;
-                                data = selector = undefined;
-                            } else if ( fn == null ) {
-                                if ( typeof selector === "string" ) {
-                                    // ( types, selector, fn )
-                                    fn = data;
-                                    data = undefined;
-                                } else {
-                                    // ( types, data, fn )
-                                    fn = data;
-                                    data = selector;
-                                    selector = undefined;
-                                }
-                            }
-                            if ( fn === false ) {
-                                fn = returnFalse;
-                            } else if ( !fn ) {
-                                return this;
-                            }
-
-                            if ( one === 1 ) {
-                                origFn = fn;
-                                fn = function( event ) {
-                                    // Can use an empty set, since event contains the info
-                                    jQuery().off( event );
-                                    return origFn.apply( this, arguments );
-                                };
-                                // Use same guid so caller can remove using origFn
-                                fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-                            }
-                            return this.each( function() {
-                                jQuery.event.add( this, types, fn, data, selector );
-                            });
-                        },
-                        one: function( types, selector, data, fn ) {
-                            return this.on( types, selector, data, fn, 1 );
-                        },
-                        off: function( types, selector, fn ) {
-                            if ( types && types.preventDefault && types.handleObj ) {
-                                // ( event )  dispatched jQuery.Event
-                                var handleObj = types.handleObj;
-                                jQuery( types.delegateTarget ).off(
-                                    handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
-                                    handleObj.selector,
-                                    handleObj.handler
-                                );
-                                return this;
-                            }
-                            if ( typeof types === "object" ) {
-                                // ( types-object [, selector] )
-                                for ( var type in types ) {
-                                    this.off( type, selector, types[ type ] );
-                                }
-                                return this;
-                            }
-                            if ( selector === false || typeof selector === "function" ) {
-                                // ( types [, fn] )
-                                fn = selector;
-                                selector = undefined;
-                            }
-                            if ( fn === false ) {
-                                fn = returnFalse;
-                            }
-                            return this.each(function() {
-                                jQuery.event.remove( this, types, fn, selector );
-                            });
-                        },
-
-                        bind: function( types, data, fn ) {
-                            return this.on( types, null, data, fn );
-                        },
-                        unbind: function( types, fn ) {
-                            return this.off( types, null, fn );
-                        },
-
-                        live: function( types, data, fn ) {
-                            jQuery( this.context ).on( types, this.selector, data, fn );
-                            return this;
-                        },
-                        die: function( types, fn ) {
-                            jQuery( this.context ).off( types, this.selector || "**", fn );
-                            return this;
-                        },
-
-                        delegate: function( selector, types, data, fn ) {
-                            return this.on( types, selector, data, fn );
-                        },
-                        undelegate: function( selector, types, fn ) {
-                            // ( namespace ) or ( selector, types [, fn] )
-                            return arguments.length == 1? this.off( selector, "**" ) : this.off( types, selector, fn );
-                        },
-
-                        trigger: function( type, data ) {
-                            return this.each(function() {
-                                jQuery.event.trigger( type, data, this );
-                            });
-                        },
-                        triggerHandler: function( type, data ) {
-                            if ( this[0] ) {
-                                return jQuery.event.trigger( type, data, this[0], true );
-                            }
-                        },
-
-                        toggle: function( fn ) {
-                            // Save reference to arguments for access in closure
-                            var args = arguments,
-                                guid = fn.guid || jQuery.guid++,
-                                i = 0,
-                                toggler = function( event ) {
-                                    // Figure out which function to execute
-                                    var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
-                                    jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
-
-                                    // Make sure that clicks stop
-                                    event.preventDefault();
-
-                                    // and execute the function
-                                    return args[ lastToggle ].apply( this, arguments ) || false;
-                                };
-
-                            // link all the functions, so any of them can unbind this click handler
-                            toggler.guid = guid;
-                            while ( i < args.length ) {
-                                args[ i++ ].guid = guid;
-                            }
-
-                            return this.click( toggler );
-                        },
-
-                        hover: function( fnOver, fnOut ) {
-                            return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-                        }
-                    });
-
-                    jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
-                        "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-                        "change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
-
-                        // Handle event binding
-                        jQuery.fn[ name ] = function( data, fn ) {
-                            if ( fn == null ) {
-                                fn = data;
-                                data = null;
-                            }
-
-                            return arguments.length > 0 ?
-                                this.on( name, null, data, fn ) :
-                                this.trigger( name );
-                        };
-
-                        if ( jQuery.attrFn ) {
-                            jQuery.attrFn[ name ] = true;
-                        }
-
-                        if ( rkeyEvent.test( name ) ) {
-                            jQuery.event.fixHooks[ name ] = jQuery.event.keyHooks;
-                        }
-
-                        if ( rmouseEvent.test( name ) ) {
-                            jQuery.event.fixHooks[ name ] = jQuery.event.mouseHooks;
-                        }
-                    });
-
-
-
-                    /*!
- * Sizzle CSS Selector Engine
- *  Copyright 2011, The Dojo Foundation
- *  Released under the MIT, BSD, and GPL Licenses.
- *  More information: http://sizzlejs.com/
- */
-                    (function(){
-
-                        var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^\[\]]*\]|['"][^'"]*['"]|[^\[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
-                            expando = "sizcache" + (Math.random() + '').replace('.', ''),
-                            done = 0,
-                            toString = Object.prototype.toString,
-                            hasDuplicate = false,
-                            baseHasDuplicate = true,
-                            rBackslash = /\\/g,
-                            rReturn = /\r\n/g,
-                            rNonWord = /\W/;
-
-// Here we check if the JavaScript engine is using some sort of
-// optimization where it does not always call our comparision
-// function. If that is the case, discard the hasDuplicate value.
-//   Thus far that includes Google Chrome.
-                        [0, 0].sort(function() {
-                            baseHasDuplicate = false;
-                            return 0;
-                        });
-
-                        var Sizzle = function( selector, context, results, seed ) {
-                            results = results || [];
-                            context = context || document;
-
-                            var origContext = context;
-
-                            if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
-                                return [];
-                            }
-
-                            if ( !selector || typeof selector !== "string" ) {
-                                return results;
-                            }
-
-                            var m, set, checkSet, extra, ret, cur, pop, i,
-                                prune = true,
-                                contextXML = Sizzle.isXML( context ),
-                                parts = [],
-                                soFar = selector;
-
-                            // Reset the position of the chunker regexp (start from head)
-                            do {
-                                chunker.exec( "" );
-                                m = chunker.exec( soFar );
-
-                                if ( m ) {
-                                    soFar = m[3];
-
-                                    parts.push( m[1] );
-
-                                    if ( m[2] ) {
-                                        extra = m[3];
-                                        break;
-                                    }
-                                }
-                            } while ( m );
-
-                            if ( parts.length > 1 && origPOS.exec( selector ) ) {
-
-                                if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
-                                    set = posProcess( parts[0] + parts[1], context, seed );
-
-                                } else {
-                                    set = Expr.relative[ parts[0] ] ?
-                                        [ context ] :
-                                        Sizzle( parts.shift(), context );
-
-                                    while ( parts.length ) {
-                                        selector = parts.shift();
-
-                                        if ( Expr.relative[ selector ] ) {
-                                            selector += parts.shift();
-                                        }
-
-                                        set = posProcess( selector, set, seed );
-                                    }
-                                }
-
-                            } else {
-                                // Take a shortcut and set the context if the root selector is an ID
-                                // (but not if it'll be faster if the inner selector is an ID)
-                                if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
-                                    Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
-
-                                    ret = Sizzle.find( parts.shift(), context, contextXML );
-                                    context = ret.expr ?
-                                        Sizzle.filter( ret.expr, ret.set )[0] :
-                                        ret.set[0];
-                                }
-
-                                if ( context ) {
-                                    ret = seed ?
-                                        { expr: parts.pop(), set: makeArray(seed) } :
-                                        Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
-
-                                    set = ret.expr ?
-                                        Sizzle.filter( ret.expr, ret.set ) :
-                                        ret.set;
-
-                                    if ( parts.length > 0 ) {
-                                        checkSet = makeArray( set );
-
-                                    } else {
-                                        prune = false;
-                                    }
-
-                                    while ( parts.length ) {
-                                        cur = parts.pop();
-                                        pop = cur;
-
-                                        if ( !Expr.relative[ cur ] ) {
-                                            cur = "";
-                                        } else {
-                                            pop = parts.pop();
-                                        }
-
-                                        if ( pop == null ) {
-                                            pop = context;
-                                        }
-
-                                        Expr.relative[ cur ]( checkSet, pop, contextXML );
-                                    }
-
-                                } else {
-                                    checkSet = parts = [];
-                                }
-                            }
-
-                            if ( !checkSet ) {
-                                checkSet = set;
-                            }
-
-                            if ( !checkSet ) {
-                                Sizzle.error( cur || selector );
-                            }
-
-                            if ( toString.call(checkSet) === "[object Array]" ) {
-                                if ( !prune ) {
-                                    results.push.apply( results, checkSet );
-
-                                } else if ( context && context.nodeType === 1 ) {
-                                    for ( i = 0; checkSet[i] != null; i++ ) {
-                                        if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && Sizzle.contains(context, checkSet[i])) ) {
-                                            results.push( set[i] );
-                                        }
-                                    }
-
-                                } else {
-                                    for ( i = 0; checkSet[i] != null; i++ ) {
-                                        if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
-                                            results.push( set[i] );
-                                        }
-                                    }
-                                }
-
-                            } else {
-                                makeArray( checkSet, results );
-                            }
-
-                            if ( extra ) {
-                                Sizzle( extra, origContext, results, seed );
-                                Sizzle.uniqueSort( results );
-                            }
-
-                            return results;
-                        };
-
-                        Sizzle.uniqueSort = function( results ) {
-                            if ( sortOrder ) {
-                                hasDuplicate = baseHasDuplicate;
-                                results.sort( sortOrder );
-
-                                if ( hasDuplicate ) {
-                                    for ( var i = 1; i < results.length; i++ ) {
-                                        if ( results[i] === results[ i - 1 ] ) {
-                                            results.splice( i--, 1 );
-                                        }
-                                    }
-                                }
-                            }
-
-                            return results;
-                        };
-
-                        Sizzle.matches = function( expr, set ) {
-                            return Sizzle( expr, null, null, set );
-                        };
-
-                        Sizzle.matchesSelector = function( node, expr ) {
-                            return Sizzle( expr, null, null, [node] ).length > 0;
-                        };
-
-                        Sizzle.find = function( expr, context, isXML ) {
-                            var set, i, len, match, type, left;
-
-                            if ( !expr ) {
-                                return [];
-                            }
-
-                            for ( i = 0, len = Expr.order.length; i < len; i++ ) {
-                                type = Expr.order[i];
-
-                                if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
-                                    left = match[1];
-                                    match.splice( 1, 1 );
-
-                                    if ( left.substr( left.length - 1 ) !== "\\" ) {
-                                        match[1] = (match[1] || "").replace( rBackslash, "" );
-                                        set = Expr.find[ type ]( match, context, isXML );
-
-                                        if ( set != null ) {
-                                            expr = expr.replace( Expr.match[ type ], "" );
-                                            break;
-                                        }
-                                    }
-                                }
-                            }
-
-                            if ( !set ) {
-                                set = typeof context.getElementsByTagName !== "undefined" ?
-                                    context.getElementsByTagName( "*" ) :
-                                    [];
-                            }
-
-                            return { set: set, expr: expr };
-                        };
-
-                        Sizzle.filter = function( expr, set, inplace, not ) {
-                            var match, anyFound,
-                                type, found, item, filter, left,
-                                i, pass,
-                                old = expr,
-                                result = [],
-                                curLoop = set,
-                                isXMLFilter = set && set[0] && Sizzle.isXML( set[0] );
-
-                            while ( expr && set.length ) {
-                                for ( type in Expr.filter ) {
-                                    if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {
-                                        filter = Expr.filter[ type ];
-                                        left = match[1];
-
-                                        anyFound = false;
-
-                                        match.splice(1,1);
-
-                                        if ( left.substr( left.length - 1 ) === "\\" ) {
-                                            continue;
-                                        }
-
-                                        if ( curLoop === result ) {
-                                            result = [];
-                                        }
-
-                                        if ( Expr.preFilter[ type ] ) {
-                                            match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
-
-                                            if ( !match ) {
-                                                anyFound = found = true;
-
-                                            } else if ( match === true ) {
-                                                continue;
-                                            }
-                                        }
-
-                                        if ( match ) {
-                                            for ( i = 0; (item = curLoop[i]) != null; i++ ) {
-                                                if ( item ) {
-                                                    found = filter( item, match, i, curLoop );
-                                                    pass = not ^ found;
-
-                                                    if ( inplace && found != null ) {
-                                                        if ( pass ) {
-                                                            anyFound = true;
-
-                                                        } else {
-                                                            curLoop[i] = false;
-                                                        }
-
-                                                    } else if ( pass ) {
-                                                        result.push( item );
-                                                        anyFound = true;
-                                                    }
-                                                }
-                                            }
-                                        }
-
-                                        if ( found !== undefined ) {
-                                            if ( !inplace ) {
-                                                curLoop = result;
-                                            }
-
-                                            expr = expr.replace( Expr.match[ type ], "" );
-
-                                            if ( !anyFound ) {
-                                                return [];
-                                            }
-
-                                            break;
-                                        }
-                                    }
-                                }
-
-                                // Improper expression
-                                if ( expr === old ) {
-                                    if ( anyFound == null ) {
-                                        Sizzle.error( expr );
-
-                                    } else {
-                                        break;
-                                    }
-                                }
-
-                                old = expr;
-                            }
-
-                            return curLoop;
-                        };
-
-                        Sizzle.error = function( msg ) {
-                            throw new Error( "Syntax error, unrecognized expression: " + msg );
-                        };
-
-                        /**
-                         * Utility function for retreiving the text value of an array of DOM nodes
-                         * @param {Array|Element} elem
-                         */
-                        var getText = Sizzle.getText = function( elem ) {
-                            var i, node,
-                                nodeType = elem.nodeType,
-                                ret = "";
-
-                            if ( nodeType ) {
-                                if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-                                    // Use textContent || innerText for elements
-                                    if ( typeof elem.textContent === 'string' ) {
-                                        return elem.textContent;
-                                    } else if ( typeof elem.innerText === 'string' ) {
-                                        // Replace IE's carriage returns
-                                        return elem.innerText.replace( rReturn, '' );
-                                    } else {
-                                        // Traverse it's children
-                                        for ( elem = elem.firstChild; elem; elem = elem.nextSibling) {
-                                            ret += getText( elem );
-                                        }
-                                    }
-                                } else if ( nodeType === 3 || nodeType === 4 ) {
-                                    return elem.nodeValue;
-                                }
-                            } else {
-
-                                // If no nodeType, this is expected to be an array
-                                for ( i = 0; (node = elem[i]); i++ ) {
-                                    // Do not traverse comment nodes
-                                    if ( node.nodeType !== 8 ) {
-                                        ret += getText( node );
-                                    }
-                                }
-                            }
-                            return ret;
-                        };
-
-                        var Expr = Sizzle.selectors = {
-                            order: [ "ID", "NAME", "TAG" ],
-
-                            match: {
-                                ID: /#((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
-                                CLASS: /\.((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
-                                NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF\-]|\\.)+)['"]*\]/,
-                                ATTR: /\[\s*((?:[\w\u00c0-\uFFFF\-]|\\.)+)\s*(?:(\S?=)\s*(?:(['"])(.*?)\3|(#?(?:[\w\u00c0-\uFFFF\-]|\\.)*)|)|)\s*\]/,
-                                TAG: /^((?:[\w\u00c0-\uFFFF\*\-]|\\.)+)/,
-                                CHILD: /:(only|nth|last|first)-child(?:\(\s*(even|odd|(?:[+\-]?\d+|(?:[+\-]?\d*)?n\s*(?:[+\-]\s*\d+)?))\s*\))?/,
-                                POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^\-]|$)/,
-                                PSEUDO: /:((?:[\w\u00c0-\uFFFF\-]|\\.)+)(?:\((['"]?)((?:\([^\)]+\)|[^\(\)]*)+)\2\))?/
-                            },
-
-                            leftMatch: {},
-
-                            attrMap: {
-                                "class": "className",
-                                "for": "htmlFor"
-                            },
-
-                            attrHandle: {
-                                href: function( elem ) {
-                                    return elem.getAttribute( "href" );
-                                },
-                                type: function( elem ) {
-                                    return elem.getAttribute( "type" );
-                                }
-                            },
-
-                            relative: {
-                                "+": function(checkSet, part){
-                                    var isPartStr = typeof part === "string",
-                                        isTag = isPartStr && !rNonWord.test( part ),
-                                        isPartStrNotTag = isPartStr && !isTag;
-
-                                    if ( isTag ) {
-                                        part = part.toLowerCase();
-                                    }
-
-                                    for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
-                                        if ( (elem = checkSet[i]) ) {
-                                            while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
-
-                                            checkSet[i] = isPartStrNotTag || elem && elem.nodeName.toLowerCase() === part ?
-                                                elem || false :
-                                                elem === part;
-                                        }
-                                    }
-
-                                    if ( isPartStrNotTag ) {
-                                        Sizzle.filter( part, checkSet, true );
-                                    }
-                                },
-
-                                ">": function( checkSet, part ) {
-                                    var elem,
-                                        isPartStr = typeof part === "string",
-                                        i = 0,
-                                        l = checkSet.length;
-
-                                    if ( isPartStr && !rNonWord.test( part ) ) {
-                                        part = part.toLowerCase();
-
-                                        for ( ; i < l; i++ ) {
-                                            elem = checkSet[i];
-
-                                            if ( elem ) {
-                                                var parent = elem.parentNode;
-                                                checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;
-                                            }
-                                        }
-
-                                    } else {
-                                        for ( ; i < l; i++ ) {
-                                            elem = checkSet[i];
-
-                                            if ( elem ) {
-                                                checkSet[i] = isPartStr ?
-                                                    elem.parentNode :
-                                                    elem.parentNode === part;
-                                            }
-                                        }
-
-                                        if ( isPartStr ) {
-                                            Sizzle.filter( part, checkSet, true );
-                                        }
-                                    }
-                                },
-
-                                "": function(checkSet, part, isXML){
-                                    var nodeCheck,
-                                        doneName = done++,
-                                        checkFn = dirCheck;
-
-                                    if ( typeof part === "string" && !rNonWord.test( part ) ) {
-                                        part = part.toLowerCase();
-                                        nodeCheck = part;
-                                        checkFn = dirNodeCheck;
-                                    }
-
-                                    checkFn( "parentNode", part, doneName, checkSet, nodeCheck, isXML );
-                                },
-
-                                "~": function( checkSet, part, isXML ) {
-                                    var nodeCheck,
-                                        doneName = done++,
-                                        checkFn = dirCheck;
-
-                                    if ( typeof part === "string" && !rNonWord.test( part ) ) {
-                                        part = part.toLowerCase();
-                                        nodeCheck = part;
-                                        checkFn = dirNodeCheck;
-                                    }
-
-                                    checkFn( "previousSibling", part, doneName, checkSet, nodeCheck, isXML );
-                                }
-                            },
-
-                            find: {
-                                ID: function( match, context, isXML ) {
-                                    if ( typeof context.getElementById !== "undefined" && !isXML ) {
-                                        var m = context.getElementById(match[1]);
-                                        // Check parentNode to catch when Blackberry 4.6 returns
-                                        // nodes that are no longer in the document #6963
-                                        return m && m.parentNode ? [m] : [];
-                                    }
-                                },
-
-                                NAME: function( match, context ) {
-                                    if ( typeof context.getElementsByName !== "undefined" ) {
-                                        var ret = [],
-                                            results = context.getElementsByName( match[1] );
-
-                                        for ( var i = 0, l = results.length; i < l; i++ ) {
-                                            if ( results[i].getAttribute("name") === match[1] ) {
-                                                ret.push( results[i] );
-                                            }
-                                        }
-
-                                        return ret.length === 0 ? null : ret;
-                                    }
-                                },
-
-                                TAG: function( match, context ) {
-                                    if ( typeof context.getElementsByTagName !== "undefined" ) {
-                                        return context.getElementsByTagName( match[1] );
-                                    }
-                                }
-                            },
-                            preFilter: {
-                                CLASS: function( match, curLoop, inplace, result, not, isXML ) {
-                                    match = " " + match[1].replace( rBackslash, "" ) + " ";
-
-                                    if ( isXML ) {
-                                        return match;
-                                    }
-
-                                    for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
-                                        if ( elem ) {
-                                            if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[\t\n\r]/g, " ").indexOf(match) >= 0) ) {
-                                                if ( !inplace ) {
-                                                    result.push( elem );
-                                                }
-
-                                            } else if ( inplace ) {
-                                                curLoop[i] = false;
-                                            }
-                                        }
-                                    }
-
-                                    return false;
-                                },
-
-                                ID: function( match ) {
-                                    return match[1].replace( rBackslash, "" );
-                                },
-
-                                TAG: function( match, curLoop ) {
-                                    return match[1].replace( rBackslash, "" ).toLowerCase();
-                                },
-
-                                CHILD: function( match ) {
-                                    if ( match[1] === "nth" ) {
-                                        if ( !match[2] ) {
-                                            Sizzle.error( match[0] );
-                                        }
-
-                                        match[2] = match[2].replace(/^\+|\s*/g, '');
-
-                                        // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
-                                        var test = /(-?)(\d*)(?:n([+\-]?\d*))?/.exec(
-                                            match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" ||
-                                            !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
-
-                                        // calculate the numbers (first)n+(last) including if they are negative
-                                        match[2] = (test[1] + (test[2] || 1)) - 0;
-                                        match[3] = test[3] - 0;
-                                    }
-                                    else if ( match[2] ) {
-                                        Sizzle.error( match[0] );
-                                    }
-
-                                    // TODO: Move to normal caching system
-                                    match[0] = done++;
-
-                                    return match;
-                                },
-
-                                ATTR: function( match, curLoop, inplace, result, not, isXML ) {
-                                    var name = match[1] = match[1].replace( rBackslash, "" );
-
-                                    if ( !isXML && Expr.attrMap[name] ) {
-                                        match[1] = Expr.attrMap[name];
-                                    }
-
-                                    // Handle if an un-quoted value was used
-                                    match[4] = ( match[4] || match[5] || "" ).replace( rBackslash, "" );
-
-                                    if ( match[2] === "~=" ) {
-                                        match[4] = " " + match[4] + " ";
-                                    }
-
-                                    return match;
-                                },
-
-                                PSEUDO: function( match, curLoop, inplace, result, not ) {
-                                    if ( match[1] === "not" ) {
-                                        // If we're dealing with a complex expression, or a simple one
-                                        if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
-                                            match[3] = Sizzle(match[3], null, null, curLoop);
-
-                                        } else {
-                                            var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
-
-                                            if ( !inplace ) {
-                                                result.push.apply( result, ret );
-                                            }
-
-                                            return false;
-                                        }
-
-                                    } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
-                                        return true;
-                                    }
-
-                                    return match;
-                                },
-
-                                POS: function( match ) {
-                                    match.unshift( true );
-
-                                    return match;
-                                }
-                            },
-
-                            filters: {
-                                enabled: function( elem ) {
-                                    return elem.disabled === false && elem.type !== "hidden";
-                                },
-
-                                disabled: function( elem ) {
-                                    return elem.disabled === true;
-                                },
-
-                                checked: function( elem ) {
-                                    return elem.checked === true;
-                                },
-
-                                selected: function( elem ) {
-                                    // Accessing this property makes selected-by-default
-                                    // options in Safari work properly
-                                    if ( elem.parentNode ) {
-                                        elem.parentNode.selectedIndex;
-                                    }
-
-                                    return elem.selected === true;
-                                },
-
-                                parent: function( elem ) {
-                                    return !!elem.firstChild;
-                                },
-
-                                empty: function( elem ) {
-                                    return !elem.firstChild;
-                                },
-
-                                has: function( elem, i, match ) {
-                                    return !!Sizzle( match[3], elem ).length;
-                                },
-
-                                header: function( elem ) {
-                                    return (/h\d/i).test( elem.nodeName );
-                                },
-
-                                text: function( elem ) {
-                                    var attr = elem.getAttribute( "type" ), type = elem.type;
-                                    // IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
-                                    // use getAttribute instead to test this case
-                                    return elem.nodeName.toLowerCase() === "input" && "text" === type && ( attr === type || attr === null );
-                                },
-
-                                radio: function( elem ) {
-                                    return elem.nodeName.toLowerCase() === "input" && "radio" === elem.type;
-                                },
-
-                                checkbox: function( elem ) {
-                                    return elem.nodeName.toLowerCase() === "input" && "checkbox" === elem.type;
-                                },
-
-                                file: function( elem ) {
-                                    return elem.nodeName.toLowerCase() === "input" && "file" === elem.type;
-                                },
-
-                                password: function( elem ) {
-                                    return elem.nodeName.toLowerCase() === "input" && "password" === elem.type;
-                                },
-
-                                submit: function( elem ) {
-                                    var name = elem.nodeName.toLowerCase();
-                                    return (name === "input" || name === "button") && "submit" === elem.type;
-                                },
-
-                                image: function( elem ) {
-                                    return elem.nodeName.toLowerCase() === "input" && "image" === elem.type;
-                                },
-
-                                reset: function( elem ) {
-                                    var name = elem.nodeName.toLowerCase();
-                                    return (name === "input" || name === "button") && "reset" === elem.type;
-                                },
-
-                                button: function( elem ) {
-                                    var name = elem.nodeName.toLowerCase();
-                                    return name === "input" && "button" === elem.type || name === "button";
-                                },
-
-                                input: function( elem ) {
-                                    return (/input|select|textarea|button/i).test( elem.nodeName );
-                                },
-
-                                focus: function( elem ) {
-                                    return elem === elem.ownerDocument.activeElement;
-                                }
-                            },
-                            setFilters: {
-                                first: function( elem, i ) {
-                                    return i === 0;
-                                },
-
-                                last: function( elem, i, match, array ) {
-                                    return i === array.length - 1;
-                                },
-
-                                even: function( elem, i ) {
-                                    return i % 2 === 0;
-                                },
-
-                                odd: function( elem, i ) {
-                                    return i % 2 === 1;
-                                },
-
-                                lt: function( elem, i, match ) {
-                                    return i < match[3] - 0;
-                                },
-
-                                gt: function( elem, i, match ) {
-                                    return i > match[3] - 0;
-                                },
-
-                                nth: function( elem, i, match ) {
-                                    return match[3] - 0 === i;
-                                },
-
-                                eq: function( elem, i, match ) {
-                                    return match[3] - 0 === i;
-                                }
-                            },
-                            filter: {
-                                PSEUDO: function( elem, match, i, array ) {
-                                    var name = match[1],
-                                        filter = Expr.filters[ name ];
-
-                                    if ( filter ) {
-                                        return filter( elem, i, match, array );
-
-                                    } else if ( name === "contains" ) {
-                                        return (elem.textContent || elem.innerText || getText([ elem ]) || "").indexOf(match[3]) >= 0;
-
-                                    } else if ( name === "not" ) {
-                                        var not = match[3];
-
-                                        for ( var j = 0, l = not.length; j < l; j++ ) {
-                                            if ( not[j] === elem ) {
-                                                return false;
-                                            }
-                                        }
-
-                                        return true;
-
-                                    } else {
-                                        Sizzle.error( name );
-                                    }
-                                },
-
-                                CHILD: function( elem, match ) {
-                                    var first, last,
-                                        doneName, parent, cache,
-                                        count, diff,
-                                        type = match[1],
-                                        node = elem;
-
-                                    switch ( type ) {
-                                        case "only":
-                                        case "first":
-                                            while ( (node = node.previousSibling) ) {
-                                                if ( node.nodeType === 1 ) {
-                                                    return false;
-                                                }
-                                            }
-
-                                            if ( type === "first" ) {
-                                                return true;
-                                            }
-
-                                            node = elem;
-
-                                        /* falls through */
-                                        case "last":
-                                            while ( (node = node.nextSibling) ) {
-                                                if ( node.nodeType === 1 ) {
-                                                    return false;
-                                                }
-                                            }
-
-                                            return true;
-
-                                        case "nth":
-                                            first = match[2];
-                                            last = match[3];
-
-                                            if ( first === 1 && last === 0 ) {
-                                                return true;
-                                            }
-
-                                            doneName = match[0];
-                                            parent = elem.parentNode;
-
-                                            if ( parent && (parent[ expando ] !== doneName || !elem.nodeIndex) ) {
-                                                count = 0;
-
-                                                for ( node = parent.firstChild; node; node = node.nextSibling ) {
-                                                    if ( node.nodeType === 1 ) {
-                                                        node.nodeIndex = ++count;
-                                                    }
-                                                }
-
-                                                parent[ expando ] = doneName;
-                                            }
-
-                                            diff = elem.nodeIndex - last;
-
-                                            if ( first === 0 ) {
-                                                return diff === 0;
-
-                                            } else {
-                                                return ( diff % first === 0 && diff / first >= 0 );
-                                            }
-                                    }
-                                },
-
-                                ID: function( elem, match ) {
-                                    return elem.nodeType === 1 && elem.getAttribute("id") === match;
-                                },
-
-                                TAG: function( elem, match ) {
-                                    return (match === "*" && elem.nodeType === 1) || !!elem.nodeName && elem.nodeName.toLowerCase() === match;
-                                },
-
-                                CLASS: function( elem, match ) {
-                                    return (" " + (elem.className || elem.getAttribute("class")) + " ")
-                                        .indexOf( match ) > -1;
-                                },
-
-                                ATTR: function( elem, match ) {
-                                    var name = match[1],
-                                        result = Sizzle.attr ?
-                                            Sizzle.attr( elem, name ) :
-                                            Expr.attrHandle[ name ] ?
-                                                Expr.attrHandle[ name ]( elem ) :
-                                                elem[ name ] != null ?
-                                                    elem[ name ] :
-                                                    elem.getAttribute( name ),
-                                        value = result + "",
-                                        type = match[2],
-                                        check = match[4];
-
-                                    return result == null ?
-                                        type === "!=" :
-                                        !type && Sizzle.attr ?
-                                            result != null :
-                                            type === "=" ?
-                                                value === check :
-                                                type === "*=" ?
-                                                    value.indexOf(check) >= 0 :
-                                                    type === "~=" ?
-                                                        (" " + value + " ").indexOf(check) >= 0 :
-                                                        !check ?
-                                                            value && result !== false :
-                                                            type === "!=" ?
-                                                                value !== check :
-                                                                type === "^=" ?
-                                                                    value.indexOf(check) === 0 :
-                                                                    type === "$=" ?
-                                                                        value.substr(value.length - check.length) === check :
-                                                                        type === "|=" ?
-                                                                            value === check || value.substr(0, check.length + 1) === check + "-" :
-                                                                            false;
-                                },
-
-                                POS: function( elem, match, i, array ) {
-                                    var name = match[2],
-                                        filter = Expr.setFilters[ name ];
-
-                                    if ( filter ) {
-                                        return filter( elem, i, match, array );
-                                    }
-                                }
-                            }
-                        };
-
-                        var origPOS = Expr.match.POS,
-                            fescape = function(all, num){
-                                return "\\" + (num - 0 + 1);
-                            };
-
-                        for ( var type in Expr.match ) {
-                            Expr.match[ type ] = new RegExp( Expr.match[ type ].source + (/(?![^\[]*\])(?![^\(]*\))/.source) );
-                            Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source.replace(/\\(\d+)/g, fescape) );
-                        }
-// Expose origPOS
-// "global" as in regardless of relation to brackets/parens
-                        Expr.match.globalPOS = origPOS;
-
-                        var makeArray = function( array, results ) {
-                            array = Array.prototype.slice.call( array, 0 );
-
-                            if ( results ) {
-                                results.push.apply( results, array );
-                                return results;
-                            }
-
-                            return array;
-                        };
-
-// Perform a simple check to determine if the browser is capable of
-// converting a NodeList to an array using builtin methods.
-// Also verifies that the returned array holds DOM nodes
-// (which is not the case in the Blackberry browser)
-                        try {
-                            Array.prototype.slice.call( document.documentElement.childNodes, 0 )[0].nodeType;
-
-// Provide a fallback method if it does not work
-                        } catch( e ) {
-                            makeArray = function( array, results ) {
-                                var i = 0,
-                                    ret = results || [];
-
-                                if ( toString.call(array) === "[object Array]" ) {
-                                    Array.prototype.push.apply( ret, array );
-
-                                } else {
-                                    if ( typeof array.length === "number" ) {
-                                        for ( var l = array.length; i < l; i++ ) {
-                                            ret.push( array[i] );
-                                        }
-
-                                    } else {
-                                        for ( ; array[i]; i++ ) {
-                                            ret.push( array[i] );
-                                        }
-                                    }
-                                }
-
-                                return ret;
-                            };
-                        }
-
-                        var sortOrder, siblingCheck;
-
-                        if ( document.documentElement.compareDocumentPosition ) {
-                            sortOrder = function( a, b ) {
-                                if ( a === b ) {
-                                    hasDuplicate = true;
-                                    return 0;
-                                }
-
-                                if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
-                                    return a.compareDocumentPosition ? -1 : 1;
-                                }
-
-                                return a.compareDocumentPosition(b) & 4 ? -1 : 1;
-                            };
-
-                        } else {
-                            sortOrder = function( a, b ) {
-                                // The nodes are identical, we can exit early
-                                if ( a === b ) {
-                                    hasDuplicate = true;
-                                    return 0;
-
-                                    // Fallback to using sourceIndex (in IE) if it's available on both nodes
-                                } else if ( a.sourceIndex && b.sourceIndex ) {
-                                    return a.sourceIndex - b.sourceIndex;
-                                }
-
-                                var al, bl,
-                                    ap = [],
-                                    bp = [],
-                                    aup = a.parentNode,
-                                    bup = b.parentNode,
-                                    cur = aup;
-
-                                // If the nodes are siblings (or identical) we can do a quick check
-                                if ( aup === bup ) {
-                                    return siblingCheck( a, b );
-
-                                    // If no parents were found then the nodes are disconnected
-                                } else if ( !aup ) {
-                                    return -1;
-
-                                } else if ( !bup ) {
-                                    return 1;
-                                }
-
-                                // Otherwise they're somewhere else in the tree so we need
-                                // to build up a full list of the parentNodes for comparison
-                                while ( cur ) {
-                                    ap.unshift( cur );
-                                    cur = cur.parentNode;
-                                }
-
-                                cur = bup;
-
-                                while ( cur ) {
-                                    bp.unshift( cur );
-                                    cur = cur.parentNode;
-                                }
-
-                                al = ap.length;
-                                bl = bp.length;
-
-                                // Start walking down the tree looking for a discrepancy
-                                for ( var i = 0; i < al && i < bl; i++ ) {
-                                    if ( ap[i] !== bp[i] ) {
-                                        return siblingCheck( ap[i], bp[i] );
-                                    }
-                                }
-
-                                // We ended someplace up the tree so do a sibling check
-                                return i === al ?
-                                    siblingCheck( a, bp[i], -1 ) :
-                                    siblingCheck( ap[i], b, 1 );
-                            };
-
-                            siblingCheck = function( a, b, ret ) {
-                                if ( a === b ) {
-                                    return ret;
-                                }
-
-                                var cur = a.nextSibling;
-
-                                while ( cur ) {
-                                    if ( cur === b ) {
-                                        return -1;
-                                    }
-
-                                    cur = cur.nextSibling;
-                                }
-
-                                return 1;
-                            };
-                        }
-
-// Check to see if the browser returns elements by name when
-// querying by getElementById (and provide a workaround)
-                        (function(){
-                            // We're going to inject a fake input element with a specified name
-                            var form = document.createElement("div"),
-                                id = "script" + (new Date()).getTime(),
-                                root = document.documentElement;
-
-                            form.innerHTML = "<a name='" + id + "'/>";
-
-                            // Inject it into the root element, check its status, and remove it quickly
-                            root.insertBefore( form, root.firstChild );
-
-                            // The workaround has to do additional checks after a getElementById
-                            // Which slows things down for other browsers (hence the branching)
-                            if ( document.getElementById( id ) ) {
-                                Expr.find.ID = function( match, context, isXML ) {
-                                    if ( typeof context.getElementById !== "undefined" && !isXML ) {
-                                        var m = context.getElementById(match[1]);
-
-                                        return m ?
-                                            m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ?
-                                                [m] :
-                                                undefined :
-                                            [];
-                                    }
-                                };
-
-                                Expr.filter.ID = function( elem, match ) {
-                                    var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
-
-                                    return elem.nodeType === 1 && node && node.nodeValue === match;
-                                };
-                            }
-
-                            root.removeChild( form );
-
-                            // release memory in IE
-                            root = form = null;
-                        })();
-
-                        (function(){
-                            // Check to see if the browser returns only elements
-                            // when doing getElementsByTagName("*")
-
-                            // Create a fake element
-                            var div = document.createElement("div");
-                            div.appendChild( document.createComment("") );
-
-                            // Make sure no comments are found
-                            if ( div.getElementsByTagName("*").length > 0 ) {
-                                Expr.find.TAG = function( match, context ) {
-                                    var results = context.getElementsByTagName( match[1] );
-
-                                    // Filter out possible comments
-                                    if ( match[1] === "*" ) {
-                                        var tmp = [];
-
-                                        for ( var i = 0; results[i]; i++ ) {
-                                            if ( results[i].nodeType === 1 ) {
-                                                tmp.push( results[i] );
-                                            }
-                                        }
-
-                                        results = tmp;
-                                    }
-
-                                    return results;
-                                };
-                            }
-
-                            // Check to see if an attribute returns normalized href attributes
-                            div.innerHTML = "<a href='#'></a>";
-
-                            if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
-                                div.firstChild.getAttribute("href") !== "#" ) {
-
-                                Expr.attrHandle.href = function( elem ) {
-                                    return elem.getAttribute( "href", 2 );
-                                };
-                            }
-
-                            // release memory in IE
-                            div = null;
-                        })();
-
-                        if ( document.querySelectorAll ) {
-                            (function(){
-                                var oldSizzle = Sizzle,
-                                    div = document.createElement("div"),
-                                    id = "__sizzle__";
-
-                                div.innerHTML = "<p class='TEST'></p>";
-
-                                // Safari can't handle uppercase or unicode characters when
-                                // in quirks mode.
-                                if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
-                                    return;
-                                }
-
-                                Sizzle = function( query, context, extra, seed ) {
-                                    context = context || document;
-
-                                    // Only use querySelectorAll on non-XML documents
-                                    // (ID selectors don't work in non-HTML documents)
-                                    if ( !seed && !Sizzle.isXML(context) ) {
-                                        // See if we find a selector to speed up
-                                        var match = /^(\w+$)|^\.([\w\-]+$)|^#([\w\-]+$)/.exec( query );
-
-                                        if ( match && (context.nodeType === 1 || context.nodeType === 9) ) {
-                                            // Speed-up: Sizzle("TAG")
-                                            if ( match[1] ) {
-                                                return makeArray( context.getElementsByTagName( query ), extra );
-
-                                                // Speed-up: Sizzle(".CLASS")
-                                            } else if ( match[2] && Expr.find.CLASS && context.getElementsByClassName ) {
-                                                return makeArray( context.getElementsByClassName( match[2] ), extra );
-                                            }
-                                        }
-
-                                        if ( context.nodeType === 9 ) {
-                                            // Speed-up: Sizzle("body")
-                                            // The body element only exists once, optimize finding it
-                                            if ( query === "body" && context.body ) {
-                                                return makeArray( [ context.body ], extra );
-
-                                                // Speed-up: Sizzle("#ID")
-                                            } else if ( match && match[3] ) {
-                                                var elem = context.getElementById( match[3] );
-
-                                                // Check parentNode to catch when Blackberry 4.6 returns
-                                                // nodes that are no longer in the document #6963
-                                                if ( elem && elem.parentNode ) {
-                                                    // Handle the case where IE and Opera return items
-                                                    // by name instead of ID
-                                                    if ( elem.id === match[3] ) {
-                                                        return makeArray( [ elem ], extra );
-                                                    }
-
-                                                } else {
-                                                    return makeArray( [], extra );
-                                                }
-                                            }
-
-                                            try {
-                                                return makeArray( context.querySelectorAll(query), extra );
-                                            } catch(qsaError) {}
-
-                                            // qSA works strangely on Element-rooted queries
-                                            // We can work around this by specifying an extra ID on the root
-                                            // and working up from there (Thanks to Andrew Dupont for the technique)
-                                            // IE 8 doesn't work on object elements
-                                        } else if ( context.nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
-                                            var oldContext = context,
-                                                old = context.getAttribute( "id" ),
-                                                nid = old || id,
-                                                hasParent = context.parentNode,
-                                                relativeHierarchySelector = /^\s*[+~]/.test( query );
-
-                                            if ( !old ) {
-                                                context.setAttribute( "id", nid );
-                                            } else {
-                                                nid = nid.replace( /'/g, "\\$&" );
-                                            }
-                                            if ( relativeHierarchySelector && hasParent ) {
-                                                context = context.parentNode;
-                                            }
-
-                                            try {
-                                                if ( !relativeHierarchySelector || hasParent ) {
-                                                    return makeArray( context.querySelectorAll( "[id='" + nid + "'] " + query ), extra );
-                                                }
-
-                                            } catch(pseudoError) {
-                                            } finally {
-                                                if ( !old ) {
-                                                    oldContext.removeAttribute( "id" );
-                                                }
-                                            }
-                                        }
-                                    }
-
-                                    return oldSizzle(query, context, extra, seed);
-                                };
-
-                                for ( var prop in oldSizzle ) {
-                                    Sizzle[ prop ] = oldSizzle[ prop ];
-                                }
-
-                                // release memory in IE
-                                div = null;
-                            })();
-                        }
-
-                        (function(){
-                            var html = document.documentElement,
-                                matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector;
-
-                            if ( matches ) {
-                                // Check to see if it's possible to do matchesSelector
-                                // on a disconnected node (IE 9 fails this)
-                                var disconnectedMatch = !matches.call( document.createElement( "div" ), "div" ),
-                                    pseudoWorks = false;
-
-                                try {
-                                    // This should fail with an exception
-                                    // Gecko does not error, returns false instead
-                                    matches.call( document.documentElement, "[test!='']:sizzle" );
-
-                                } catch( pseudoError ) {
-                                    pseudoWorks = true;
-                                }
-
-                                Sizzle.matchesSelector = function( node, expr ) {
-                                    // Make sure that attribute selectors are quoted
-                                    expr = expr.replace(/\=\s*([^'"\]]*)\s*\]/g, "='$1']");
-
-                                    if ( !Sizzle.isXML( node ) ) {
-                                        try {
-                                            if ( pseudoWorks || !Expr.match.PSEUDO.test( expr ) && !/!=/.test( expr ) ) {
-                                                var ret = matches.call( node, expr );
-
-                                                // IE 9's matchesSelector returns false on disconnected nodes
-                                                if ( ret || !disconnectedMatch ||
-                                                    // As well, disconnected nodes are said to be in a document
-                                                    // fragment in IE 9, so check for that
-                                                    node.document && node.document.nodeType !== 11 ) {
-                                                    return ret;
-                                                }
-                                            }
-                                        } catch(e) {}
-                                    }
-
-                                    return Sizzle(expr, null, null, [node]).length > 0;
-                                };
-                            }
-                        })();
-
-                        (function(){
-                            var div = document.createElement("div");
-
-                            div.innerHTML = "<div class='test e'></div><div class='test'></div>";
-
-                            // Opera can't find a second classname (in 9.6)
-                            // Also, make sure that getElementsByClassName actually exists
-                            if ( !div.getElementsByClassName || div.getElementsByClassName("e").length === 0 ) {
-                                return;
-                            }
-
-                            // Safari caches class attributes, doesn't catch changes (in 3.2)
-                            div.lastChild.className = "e";
-
-                            if ( div.getElementsByClassName("e").length === 1 ) {
-                                return;
-                            }
-
-                            Expr.order.splice(1, 0, "CLASS");
-                            Expr.find.CLASS = function( match, context, isXML ) {
-                                if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
-                                    return context.getElementsByClassName(match[1]);
-                                }
-                            };
-
-                            // release memory in IE
-                            div = null;
-                        })();
-
-                        function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
-                            for ( var i = 0, l = checkSet.length; i < l; i++ ) {
-                                var elem = checkSet[i];
-
-                                if ( elem ) {
-                                    var match = false;
-
-                                    elem = elem[dir];
-
-                                    while ( elem ) {
-                                        if ( elem[ expando ] === doneName ) {
-                                            match = checkSet[elem.sizset];
-                                            break;
-                                        }
-
-                                        if ( elem.nodeType === 1 && !isXML ){
-                                            elem[ expando ] = doneName;
-                                            elem.sizset = i;
-                                        }
-
-                                        if ( elem.nodeName.toLowerCase() === cur ) {
-                                            match = elem;
-                                            break;
-                                        }
-
-                                        elem = elem[dir];
-                                    }
-
-                                    checkSet[i] = match;
-                                }
-                            }
-                        }
-
-                        function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
-                            for ( var i = 0, l = checkSet.length; i < l; i++ ) {
-                                var elem = checkSet[i];
-
-                                if ( elem ) {
-                                    var match = false;
-
-                                    elem = elem[dir];
-
-                                    while ( elem ) {
-                                        if ( elem[ expando ] === doneName ) {
-                                            match = checkSet[elem.sizset];
-                                            break;
-                                        }
-
-                                        if ( elem.nodeType === 1 ) {
-                                            if ( !isXML ) {
-                                                elem[ expando ] = doneName;
-                                                elem.sizset = i;
-                                            }
-
-                                            if ( typeof cur !== "string" ) {
-                                                if ( elem === cur ) {
-                                                    match = true;
-                                                    break;
-                                                }
-
-                                            } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
-                                                match = elem;
-                                                break;
-                                            }
-                                        }
-
-                                        elem = elem[dir];
-                                    }
-
-                                    checkSet[i] = match;
-                                }
-                            }
-                        }
-
-                        if ( document.documentElement.contains ) {
-                            Sizzle.contains = function( a, b ) {
-                                return a !== b && (a.contains ? a.contains(b) : true);
-                            };
-
-                        } else if ( document.documentElement.compareDocumentPosition ) {
-                            Sizzle.contains = function( a, b ) {
-                                return !!(a.compareDocumentPosition(b) & 16);
-                            };
-
-                        } else {
-                            Sizzle.contains = function() {
-                                return false;
-                            };
-                        }
-
-                        Sizzle.isXML = function( elem ) {
-                            // documentElement is verified for cases where it doesn't yet exist
-                            // (such as loading iframes in IE - #4833)
-                            var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
-
-                            return documentElement ? documentElement.nodeName !== "HTML" : false;
-                        };
-
-                        var posProcess = function( selector, context, seed ) {
-                            var match,
-                                tmpSet = [],
-                                later = "",
-                                root = context.nodeType ? [context] : context;
-
-                            // Position selectors must be done after the filter
-                            // And so must :not(positional) so we move all PSEUDOs to the end
-                            while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
-                                later += match[0];
-                                selector = selector.replace( Expr.match.PSEUDO, "" );
-                            }
-
-                            selector = Expr.relative[selector] ? selector + "*" : selector;
-
-                            for ( var i = 0, l = root.length; i < l; i++ ) {
-                                Sizzle( selector, root[i], tmpSet, seed );
-                            }
-
-                            return Sizzle.filter( later, tmpSet );
-                        };
-
-// EXPOSE
-// Override sizzle attribute retrieval
-                        Sizzle.attr = jQuery.attr;
-                        Sizzle.selectors.attrMap = {};
-                        jQuery.find = Sizzle;
-                        jQuery.expr = Sizzle.selectors;
-                        jQuery.expr[":"] = jQuery.expr.filters;
-                        jQuery.unique = Sizzle.uniqueSort;
-                        jQuery.text = Sizzle.getText;
-                        jQuery.isXMLDoc = Sizzle.isXML;
-                        jQuery.contains = Sizzle.contains;
-
-
-                    })();
-
-
-                    var runtil = /Until$/,
-                        rparentsprev = /^(?:parents|prevUntil|prevAll)/,
-                        // Note: This RegExp should be improved, or likely pulled from Sizzle
-                        rmultiselector = /,/,
-                        isSimple = /^.[^:#\[\.,]*$/,
-                        slice = Array.prototype.slice,
-                        POS = jQuery.expr.match.globalPOS,
-                        // methods guaranteed to produce a unique set when starting from a unique set
-                        guaranteedUnique = {
-                            children: true,
-                            contents: true,
-                            next: true,
-                            prev: true
-                        };
-
-                    jQuery.fn.extend({
-                        find: function( selector ) {
-                            var self = this,
-                                i, l;
-
-                            if ( typeof selector !== "string" ) {
-                                return jQuery( selector ).filter(function() {
-                                    for ( i = 0, l = self.length; i < l; i++ ) {
-                                        if ( jQuery.contains( self[ i ], this ) ) {
-                                            return true;
-                                        }
-                                    }
-                                });
-                            }
-
-                            var ret = this.pushStack( "", "find", selector ),
-                                length, n, r;
-
-                            for ( i = 0, l = this.length; i < l; i++ ) {
-                                length = ret.length;
-                                jQuery.find( selector, this[i], ret );
-
-                                if ( i > 0 ) {
-                                    // Make sure that the results are unique
-                                    for ( n = length; n < ret.length; n++ ) {
-                                        for ( r = 0; r < length; r++ ) {
-                                            if ( ret[r] === ret[n] ) {
-                                                ret.splice(n--, 1);
-                                                break;
-                                            }
-                                        }
-                                    }
-                                }
-                            }
-
-                            return ret;
-                        },
-
-                        has: function( target ) {
-                            var targets = jQuery( target );
-                            return this.filter(function() {
-                                for ( var i = 0, l = targets.length; i < l; i++ ) {
-                                    if ( jQuery.contains( this, targets[i] ) ) {
-                                        return true;
-                                    }
-                                }
-                            });
-                        },
-
-                        not: function( selector ) {
-                            return this.pushStack( winnow(this, selector, false), "not", selector);
-                        },
-
-                        filter: function( selector ) {
-                            return this.pushStack( winnow(this, selector, true), "filter", selector );
-                        },
-
-                        is: function( selector ) {
-                            return !!selector && (
-                                typeof selector === "string" ?
-                                    // If this is a positional selector, check membership in the returned set
-                                    // so $("p:first").is("p:last") won't return true for a doc with two "p".
-                                    POS.test( selector ) ?
-                                        jQuery( selector, this.context ).index( this[0] ) >= 0 :
-                                        jQuery.filter( selector, this ).length > 0 :
-                                    this.filter( selector ).length > 0 );
-                        },
-
-                        closest: function( selectors, context ) {
-                            var ret = [], i, l, cur = this[0];
-
-                            // Array (deprecated as of jQuery 1.7)
-                            if ( jQuery.isArray( selectors ) ) {
-                                var level = 1;
-
-                                while ( cur && cur.ownerDocument && cur !== context ) {
-                                    for ( i = 0; i < selectors.length; i++ ) {
-
-                                        if ( jQuery( cur ).is( selectors[ i ] ) ) {
-                                            ret.push({ selector: selectors[ i ], elem: cur, level: level });
-                                        }
-                                    }
-
-                                    cur = cur.parentNode;
-                                    level++;
-                                }
-
-                                return ret;
-                            }
-
-                            // String
-                            var pos = POS.test( selectors ) || typeof selectors !== "string" ?
-                                jQuery( selectors, context || this.context ) :
-                                0;
-
-                            for ( i = 0, l = this.length; i < l; i++ ) {
-                                cur = this[i];
-
-                                while ( cur ) {
-                                    if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
-                                        ret.push( cur );
-                                        break;
-
-                                    } else {
-                                        cur = cur.parentNode;
-                                        if ( !cur || !cur.ownerDocument || cur === context || cur.nodeType === 11 ) {
-                                            break;
-                                        }
-                                    }
-                                }
-                            }
-
-                            ret = ret.length > 1 ? jQuery.unique( ret ) : ret;
-
-                            return this.pushStack( ret, "closest", selectors );
-                        },
-
-                        // Determine the position of an element within
-                        // the matched set of elements
-                        index: function( elem ) {
-
-                            // No argument, return index in parent
-                            if ( !elem ) {
-                                return ( this[0] && this[0].parentNode ) ? this.prevAll().length : -1;
-                            }
-
-                            // index in selector
-                            if ( typeof elem === "string" ) {
-                                return jQuery.inArray( this[0], jQuery( elem ) );
-                            }
-
-                            // Locate the position of the desired element
-                            return jQuery.inArray(
-                                // If it receives a jQuery object, the first element is used
-                                elem.jquery ? elem[0] : elem, this );
-                        },
-
-                        add: function( selector, context ) {
-                            var set = typeof selector === "string" ?
-                                    jQuery( selector, context ) :
-                                    jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
-                                all = jQuery.merge( this.get(), set );
-
-                            return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?
-                                all :
-                                jQuery.unique( all ) );
-                        },
-
-                        andSelf: function() {
-                            return this.add( this.prevObject );
-                        }
-                    });
-
-// A painfully simple check to see if an element is disconnected
-// from a document (should be improved, where feasible).
-                    function isDisconnected( node ) {
-                        return !node || !node.parentNode || node.parentNode.nodeType === 11;
-                    }
-
-                    jQuery.each({
-                        parent: function( elem ) {
-                            var parent = elem.parentNode;
-                            return parent && parent.nodeType !== 11 ? parent : null;
-                        },
-                        parents: function( elem ) {
-                            return jQuery.dir( elem, "parentNode" );
-                        },
-                        parentsUntil: function( elem, i, until ) {
-                            return jQuery.dir( elem, "parentNode", until );
-                        },
-                        next: function( elem ) {
-                            return jQuery.nth( elem, 2, "nextSibling" );
-                        },
-                        prev: function( elem ) {
-                            return jQuery.nth( elem, 2, "previousSibling" );
-                        },
-                        nextAll: function( elem ) {
-                            return jQuery.dir( elem, "nextSibling" );
-                        },
-                        prevAll: function( elem ) {
-                            return jQuery.dir( elem, "previousSibling" );
-                        },
-                        nextUntil: function( elem, i, until ) {
-                            return jQuery.dir( elem, "nextSibling", until );
-                        },
-                        prevUntil: function( elem, i, until ) {
-                            return jQuery.dir( elem, "previousSibling", until );
-                        },
-                        siblings: function( elem ) {
-                            return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
-                        },
-                        children: function( elem ) {
-                            return jQuery.sibling( elem.firstChild );
-                        },
-                        contents: function( elem ) {
-                            return jQuery.nodeName( elem, "iframe" ) ?
-                                elem.contentDocument || elem.contentWindow.document :
-                                jQuery.makeArray( elem.childNodes );
-                        }
-                    }, function( name, fn ) {
-                        jQuery.fn[ name ] = function( until, selector ) {
-                            var ret = jQuery.map( this, fn, until );
-
-                            if ( !runtil.test( name ) ) {
-                                selector = until;
-                            }
-
-                            if ( selector && typeof selector === "string" ) {
-                                ret = jQuery.filter( selector, ret );
-                            }
-
-                            ret = this.length > 1 && !guaranteedUnique[ name ] ? jQuery.unique( ret ) : ret;
-
-                            if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {
-                                ret = ret.reverse();
-                            }
-
-                            return this.pushStack( ret, name, slice.call( arguments ).join(",") );
-                        };
-                    });
-
-                    jQuery.extend({
-                        filter: function( expr, elems, not ) {
-                            if ( not ) {
-                                expr = ":not(" + expr + ")";
-                            }
-
-                            return elems.length === 1 ?
-                                jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
-                                jQuery.find.matches(expr, elems);
-                        },
-
-                        dir: function( elem, dir, until ) {
-                            var matched = [],
-                                cur = elem[ dir ];
-
-                            while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
-                                if ( cur.nodeType === 1 ) {
-                                    matched.push( cur );
-                                }
-                                cur = cur[dir];
-                            }
-                            return matched;
-                        },
-
-                        nth: function( cur, result, dir, elem ) {
-                            result = result || 1;
-                            var num = 0;
-
-                            for ( ; cur; cur = cur[dir] ) {
-                                if ( cur.nodeType === 1 && ++num === result ) {
-                                    break;
-                                }
-                            }
-
-                            return cur;
-                        },
-
-                        sibling: function( n, elem ) {
-                            var r = [];
-
-                            for ( ; n; n = n.nextSibling ) {
-                                if ( n.nodeType === 1 && n !== elem ) {
-                                    r.push( n );
-                                }
-                            }
-
-                            return r;
-                        }
-                    });
-
-// Implement the identical functionality for filter and not
-                    function winnow( elements, qualifier, keep ) {
-
-                        // Can't pass null or undefined to indexOf in Firefox 4
-                        // Set to 0 to skip string check
-                        qualifier = qualifier || 0;
-
-                        if ( jQuery.isFunction( qualifier ) ) {
-                            return jQuery.grep(elements, function( elem, i ) {
-                                var retVal = !!qualifier.call( elem, i, elem );
-                                return retVal === keep;
-                            });
-
-                        } else if ( qualifier.nodeType ) {
-                            return jQuery.grep(elements, function( elem, i ) {
-                                return ( elem === qualifier ) === keep;
-                            });
-
-                        } else if ( typeof qualifier === "string" ) {
-                            var filtered = jQuery.grep(elements, function( elem ) {
-                                return elem.nodeType === 1;
-                            });
-
-                            if ( isSimple.test( qualifier ) ) {
-                                return jQuery.filter(qualifier, filtered, !keep);
-                            } else {
-                                qualifier = jQuery.filter( qualifier, filtered );
-                            }
-                        }
-
-                        return jQuery.grep(elements, function( elem, i ) {
-                            return ( jQuery.inArray( elem, qualifier ) >= 0 ) === keep;
-                        });
-                    }
-
-
-
-
-                    function createSafeFragment( document ) {
-                        var list = nodeNames.split( "|" ),
-                            safeFrag = document.createDocumentFragment();
-
-                        if ( safeFrag.createElement ) {
-                            while ( list.length ) {
-                                safeFrag.createElement(
-                                    list.pop()
-                                );
-                            }
-                        }
-                        return safeFrag;
-                    }
-
-                    var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
-                            "header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
-                        rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
-                        rleadingWhitespace = /^\s+/,
-                        rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig,
-                        rtagName = /<([\w:]+)/,
-                        rtbody = /<tbody/i,
-                        rhtml = /<|&#?\w+;/,
-                        rnoInnerhtml = /<(?:script|style)/i,
-                        rnocache = /<(?:script|object|embed|option|style)/i,
-                        rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
-                        // checked="checked" or checked
-                        rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-                        rscriptType = /\/(java|ecma)script/i,
-                        rcleanScript = /^\s*<!(?:\[CDATA\[|\-\-)/,
-                        wrapMap = {
-                            option: [ 1, "<select multiple='multiple'>", "</select>" ],
-                            legend: [ 1, "<fieldset>", "</fieldset>" ],
-                            thead: [ 1, "<table>", "</table>" ],
-                            tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-                            td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-                            col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
-                            area: [ 1, "<map>", "</map>" ],
-                            _default: [ 0, "", "" ]
-                        },
-                        safeFragment = createSafeFragment( document );
-
-                    wrapMap.optgroup = wrapMap.option;
-                    wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-                    wrapMap.th = wrapMap.td;
-
-// IE can't serialize <link> and <script> tags normally
-                    if ( !jQuery.support.htmlSerialize ) {
-                        wrapMap._default = [ 1, "div<div>", "</div>" ];
-                    }
-
-                    jQuery.fn.extend({
-                        text: function( value ) {
-                            return jQuery.access( this, function( value ) {
-                                return value === undefined ?
-                                    jQuery.text( this ) :
-                                    this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( value ) );
-                            }, null, value, arguments.length );
-                        },
-
-                        wrapAll: function( html ) {
-                            if ( jQuery.isFunction( html ) ) {
-                                return this.each(function(i) {
-                                    jQuery(this).wrapAll( html.call(this, i) );
-                                });
-                            }
-
-                            if ( this[0] ) {
-                                // The elements to wrap the target around
-                                var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
-
-                                if ( this[0].parentNode ) {
-                                    wrap.insertBefore( this[0] );
-                                }
-
-                                wrap.map(function() {
-                                    var elem = this;
-
-                                    while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
-                                        elem = elem.firstChild;
-                                    }
-
-                                    return elem;
-                                }).append( this );
-                            }
-
-                            return this;
-                        },
-
-                        wrapInner: function( html ) {
-                            if ( jQuery.isFunction( html ) ) {
-                                return this.each(function(i) {
-                                    jQuery(this).wrapInner( html.call(this, i) );
-                                });
-                            }
-
-                            return this.each(function() {
-                                var self = jQuery( this ),
-                                    contents = self.contents();
-
-                                if ( contents.length ) {
-                                    contents.wrapAll( html );
-
-                                } else {
-                                    self.append( html );
-                                }
-                            });
-                        },
-
-                        wrap: function( html ) {
-                            var isFunction = jQuery.isFunction( html );
-
-                            return this.each(function(i) {
-                                jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
-                            });
-                        },
-
-                        unwrap: function() {
-                            return this.parent().each(function() {
-                                if ( !jQuery.nodeName( this, "body" ) ) {
-                                    jQuery( this ).replaceWith( this.childNodes );
-                                }
-                            }).end();
-                        },
-
-                        append: function() {
-                            return this.domManip(arguments, true, function( elem ) {
-                                if ( this.nodeType === 1 ) {
-                                    this.appendChild( elem );
-                                }
-                            });
-                        },
-
-                        prepend: function() {
-                            return this.domManip(arguments, true, function( elem ) {
-                                if ( this.nodeType === 1 ) {
-                                    this.insertBefore( elem, this.firstChild );
-                                }
-                            });
-                        },
-
-                        before: function() {
-                            if ( this[0] && this[0].parentNode ) {
-                                return this.domManip(arguments, false, function( elem ) {
-                                    this.parentNode.insertBefore( elem, this );
-                                });
-                            } else if ( arguments.length ) {
-                                var set = jQuery.clean( arguments );
-                                set.push.apply( set, this.toArray() );
-                                return this.pushStack( set, "before", arguments );
-                            }
-                        },
-
-                        after: function() {
-                            if ( this[0] && this[0].parentNode ) {
-                                return this.domManip(arguments, false, function( elem ) {
-                                    this.parentNode.insertBefore( elem, this.nextSibling );
-                                });
-                            } else if ( arguments.length ) {
-                                var set = this.pushStack( this, "after", arguments );
-                                set.push.apply( set, jQuery.clean(arguments) );
-                                return set;
-                            }
-                        },
-
-                        // keepData is for internal use only--do not document
-                        remove: function( selector, keepData ) {
-                            for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {
-                                if ( !selector || jQuery.filter( selector, [ elem ] ).length ) {
-                                    if ( !keepData && elem.nodeType === 1 ) {
-                                        jQuery.cleanData( elem.getElementsByTagName("*") );
-                                        jQuery.cleanData( [ elem ] );
-                                    }
-
-                                    if ( elem.parentNode ) {
-                                        elem.parentNode.removeChild( elem );
-                                    }
-                                }
-                            }
-
-                            return this;
-                        },
-
-                        empty: function() {
-                            for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {
-                                // Remove element nodes and prevent memory leaks
-                                if ( elem.nodeType === 1 ) {
-                                    jQuery.cleanData( elem.getElementsByTagName("*") );
-                                }
-
-                                // Remove any remaining nodes
-                                while ( elem.firstChild ) {
-                                    elem.removeChild( elem.firstChild );
-                                }
-                            }
-
-                            return this;
-                        },
-
-                        clone: function( dataAndEvents, deepDataAndEvents ) {
-                            dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-                            deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-                            return this.map( function () {
-                                return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-                            });
-                        },
-
-                        html: function( value ) {
-                            return jQuery.access( this, function( value ) {
-                                var elem = this[0] || {},
-                                    i = 0,
-                                    l = this.length;
-
-                                if ( value === undefined ) {
-                                    return elem.nodeType === 1 ?
-                                        elem.innerHTML.replace( rinlinejQuery, "" ) :
-                                        null;
-                                }
-
-
-                                if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-                                    ( jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
-                                    !wrapMap[ ( rtagName.exec( value ) || ["", ""] )[1].toLowerCase() ] ) {
-
-                                    value = value.replace( rxhtmlTag, "<$1></$2>" );
-
-                                    try {
-                                        for (; i < l; i++ ) {
-                                            // Remove element nodes and prevent memory leaks
-                                            elem = this[i] || {};
-                                            if ( elem.nodeType === 1 ) {
-                                                jQuery.cleanData( elem.getElementsByTagName( "*" ) );
-                                                elem.innerHTML = value;
-                                            }
-                                        }
-
-                                        elem = 0;
-
-                                        // If using innerHTML throws an exception, use the fallback method
-                                    } catch(e) {}
-                                }
-
-                                if ( elem ) {
-                                    this.empty().append( value );
-                                }
-                            }, null, value, arguments.length );
-                        },
-
-                        replaceWith: function( value ) {
-                            if ( this[0] && this[0].parentNode ) {
-                                // Make sure that the elements are removed from the DOM before they are inserted
-                                // this can help fix replacing a parent with child elements
-                                if ( jQuery.isFunction( value ) ) {
-                                    return this.each(function(i) {
-                                        var self = jQuery(this), old = self.html();
-                                        self.replaceWith( value.call( this, i, old ) );
-                                    });
-                                }
-
-                                if ( typeof value !== "string" ) {
-                                    value = jQuery( value ).detach();
-                                }
-
-                                return this.each(function() {
-                                    var next = this.nextSibling,
-                                        parent = this.parentNode;
-
-                                    jQuery( this ).remove();
-
-                                    if ( next ) {
-                                        jQuery(next).before( value );
-                                    } else {
-                                        jQuery(parent).append( value );
-                                    }
-                                });
-                            } else {
-                                return this.length ?
-                                    this.pushStack( jQuery(jQuery.isFunction(value) ? value() : value), "replaceWith", value ) :
-                                    this;
-                            }
-                        },
-
-                        detach: function( selector ) {
-                            return this.remove( selector, true );
-                        },
-
-                        domManip: function( args, table, callback ) {
-                            var results, first, fragment, parent,
-                                value = args[0],
-                                scripts = [];
-
-                            // We can't cloneNode fragments that contain checked, in WebKit
-                            if ( !jQuery.support.checkClone && arguments.length === 3 && typeof value === "string" && rchecked.test( value ) ) {
-                                return this.each(function() {
-                                    jQuery(this).domManip( args, table, callback, true );
-                                });
-                            }
-
-                            if ( jQuery.isFunction(value) ) {
-                                return this.each(function(i) {
-                                    var self = jQuery(this);
-                                    args[0] = value.call(this, i, table ? self.html() : undefined);
-                                    self.domManip( args, table, callback );
-                                });
-                            }
-
-                            if ( this[0] ) {
-                                parent = value && value.parentNode;
-
-                                // If we're in a fragment, just use that instead of building a new one
-                                if ( jQuery.support.parentNode && parent && parent.nodeType === 11 && parent.childNodes.length === this.length ) {
-                                    results = { fragment: parent };
-
-                                } else {
-                                    results = jQuery.buildFragment( args, this, scripts );
-                                }
-
-                                fragment = results.fragment;
-
-                                if ( fragment.childNodes.length === 1 ) {
-                                    first = fragment = fragment.firstChild;
-                                } else {
-                                    first = fragment.firstChild;
-                                }
-
-                                if ( first ) {
-                                    table = table && jQuery.nodeName( first, "tr" );
-
-                                    for ( var i = 0, l = this.length, lastIndex = l - 1; i < l; i++ ) {
-                                        callback.call(
-                                            table ?
-                                                root(this[i], first) :
-                                                this[i],
-                                            // Make sure that we do not leak memory by inadvertently discarding
-                                            // the original fragment (which might have attached data) instead of
-                                            // using it; in addition, use the original fragment object for the last
-                                            // item instead of first because it can end up being emptied incorrectly
-                                            // in certain situations (Bug #8070).
-                                            // Fragments from the fragment cache must always be cloned and never used
-                                            // in place.
-                                            results.cacheable || ( l > 1 && i < lastIndex ) ?
-                                                jQuery.clone( fragment, true, true ) :
-                                                fragment
-                                        );
-                                    }
-                                }
-
-                                if ( scripts.length ) {
-                                    jQuery.each( scripts, function( i, elem ) {
-                                        if ( elem.src ) {
-                                            jQuery.ajax({
-                                                type: "GET",
-                                                global: false,
-                                                url: elem.src,
-                                                async: false,
-                                                dataType: "script"
-                                            });
-                                        } else {
-                                            jQuery.globalEval( ( elem.text || elem.textContent || elem.innerHTML || "" ).replace( rcleanScript, "/*$0*/" ) );
-                                        }
-
-                                        if ( elem.parentNode ) {
-                                            elem.parentNode.removeChild( elem );
-                                        }
-                                    });
-                                }
-                            }
-
-                            return this;
-                        }
-                    });
-
-                    function root( elem, cur ) {
-                        return jQuery.nodeName(elem, "table") ?
-                            (elem.getElementsByTagName("tbody")[0] ||
-                                elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
-                            elem;
-                    }
-
-                    function cloneCopyEvent( src, dest ) {
-
-                        if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
-                            return;
-                        }
-
-                        var type, i, l,
-                            oldData = jQuery._data( src ),
-                            curData = jQuery._data( dest, oldData ),
-                            events = oldData.events;
-
-                        if ( events ) {
-                            delete curData.handle;
-                            curData.events = {};
-
-                            for ( type in events ) {
-                                for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-                                    jQuery.event.add( dest, type, events[ type ][ i ] );
-                                }
-                            }
-                        }
-
-                        // make the cloned public data object a copy from the original
-                        if ( curData.data ) {
-                            curData.data = jQuery.extend( {}, curData.data );
-                        }
-                    }
-
-                    function cloneFixAttributes( src, dest ) {
-                        var nodeName;
-
-                        // We do not need to do anything for non-Elements
-                        if ( dest.nodeType !== 1 ) {
-                            return;
-                        }
-
-                        // clearAttributes removes the attributes, which we don't want,
-                        // but also removes the attachEvent events, which we *do* want
-                        if ( dest.clearAttributes ) {
-                            dest.clearAttributes();
-                        }
-
-                        // mergeAttributes, in contrast, only merges back on the
-                        // original attributes, not the events
-                        if ( dest.mergeAttributes ) {
-                            dest.mergeAttributes( src );
-                        }
-
-                        nodeName = dest.nodeName.toLowerCase();
-
-                        // IE6-8 fail to clone children inside object elements that use
-                        // the proprietary classid attribute value (rather than the type
-                        // attribute) to identify the type of content to display
-                        if ( nodeName === "object" ) {
-                            dest.outerHTML = src.outerHTML;
-
-                        } else if ( nodeName === "input" && (src.type === "checkbox" || src.type === "radio") ) {
-                            // IE6-8 fails to persist the checked state of a cloned checkbox
-                            // or radio button. Worse, IE6-7 fail to give the cloned element
-                            // a checked appearance if the defaultChecked value isn't also set
-                            if ( src.checked ) {
-                                dest.defaultChecked = dest.checked = src.checked;
-                            }
-
-                            // IE6-7 get confused and end up setting the value of a cloned
-                            // checkbox/radio button to an empty string instead of "on"
-                            if ( dest.value !== src.value ) {
-                                dest.value = src.value;
-                            }
-
-                            // IE6-8 fails to return the selected option to the default selected
-                            // state when cloning options
-                        } else if ( nodeName === "option" ) {
-                            dest.selected = src.defaultSelected;
-
-                            // IE6-8 fails to set the defaultValue to the correct value when
-                            // cloning other types of input fields
-                        } else if ( nodeName === "input" || nodeName === "textarea" ) {
-                            dest.defaultValue = src.defaultValue;
-
-                            // IE blanks contents when cloning scripts
-                        } else if ( nodeName === "script" && dest.text !== src.text ) {
-                            dest.text = src.text;
-                        }
-
-                        // Event data gets referenced instead of copied if the expando
-                        // gets copied too
-                        dest.removeAttribute( jQuery.expando );
-
-                        // Clear flags for bubbling special change/submit events, they must
-                        // be reattached when the newly cloned events are first activated
-                        dest.removeAttribute( "_submit_attached" );
-                        dest.removeAttribute( "_change_attached" );
-                    }
-
-                    jQuery.buildFragment = function( args, nodes, scripts ) {
-                        var fragment, cacheable, cacheresults, doc,
-                            first = args[ 0 ];
-
-                        // nodes may contain either an explicit document object,
-                        // a jQuery collection or context object.
-                        // If nodes[0] contains a valid object to assign to doc
-                        if ( nodes && nodes[0] ) {
-                            doc = nodes[0].ownerDocument || nodes[0];
-                        }
-
-                        // Ensure that an attr object doesn't incorrectly stand in as a document object
-                        // Chrome and Firefox seem to allow this to occur and will throw exception
-                        // Fixes #8950
-                        if ( !doc.createDocumentFragment ) {
-                            doc = document;
-                        }
-
-                        // Only cache "small" (1/2 KB) HTML strings that are associated with the main document
-                        // Cloning options loses the selected state, so don't cache them
-                        // IE 6 doesn't like it when you put <object> or <embed> elements in a fragment
-                        // Also, WebKit does not clone 'checked' attributes on cloneNode, so don't cache
-                        // Lastly, IE6,7,8 will not correctly reuse cached fragments that were created from unknown elems #10501
-                        if ( args.length === 1 && typeof first === "string" && first.length < 512 && doc === document &&
-                            first.charAt(0) === "<" && !rnocache.test( first ) &&
-                            (jQuery.support.checkClone || !rchecked.test( first )) &&
-                            (jQuery.support.html5Clone || !rnoshimcache.test( first )) ) {
-
-                            cacheable = true;
-
-                            cacheresults = jQuery.fragments[ first ];
-                            if ( cacheresults && cacheresults !== 1 ) {
-                                fragment = cacheresults;
-                            }
-                        }
-
-                        if ( !fragment ) {
-                            fragment = doc.createDocumentFragment();
-                            jQuery.clean( args, doc, fragment, scripts );
-                        }
-
-                        if ( cacheable ) {
-                            jQuery.fragments[ first ] = cacheresults ? fragment : 1;
-                        }
-
-                        return { fragment: fragment, cacheable: cacheable };
-                    };
-
-                    jQuery.fragments = {};
-
-                    jQuery.each({
-                        appendTo: "append",
-                        prependTo: "prepend",
-                        insertBefore: "before",
-                        insertAfter: "after",
-                        replaceAll: "replaceWith"
-                    }, function( name, original ) {
-                        jQuery.fn[ name ] = function( selector ) {
-                            var ret = [],
-                                insert = jQuery( selector ),
-                                parent = this.length === 1 && this[0].parentNode;
-
-                            if ( parent && parent.nodeType === 11 && parent.childNodes.length === 1 && insert.length === 1 ) {
-                                insert[ original ]( this[0] );
-                                return this;
-
-                            } else {
-                                for ( var i = 0, l = insert.length; i < l; i++ ) {
-                                    var elems = ( i > 0 ? this.clone(true) : this ).get();
-                                    jQuery( insert[i] )[ original ]( elems );
-                                    ret = ret.concat( elems );
-                                }
-
-                                return this.pushStack( ret, name, insert.selector );
-                            }
-                        };
-                    });
-
-                    function getAll( elem ) {
-                        if ( typeof elem.getElementsByTagName !== "undefined" ) {
-                            return elem.getElementsByTagName( "*" );
-
-                        } else if ( typeof elem.querySelectorAll !== "undefined" ) {
-                            return elem.querySelectorAll( "*" );
-
-                        } else {
-                            return [];
-                        }
-                    }
-
-// Used in clean, fixes the defaultChecked property
-                    function fixDefaultChecked( elem ) {
-                        if ( elem.type === "checkbox" || elem.type === "radio" ) {
-                            elem.defaultChecked = elem.checked;
-                        }
-                    }
-// Finds all inputs and passes them to fixDefaultChecked
-                    function findInputs( elem ) {
-                        var nodeName = ( elem.nodeName || "" ).toLowerCase();
-                        if ( nodeName === "input" ) {
-                            fixDefaultChecked( elem );
-                            // Skip scripts, get other children
-                        } else if ( nodeName !== "script" && typeof elem.getElementsByTagName !== "undefined" ) {
-                            jQuery.grep( elem.getElementsByTagName("input"), fixDefaultChecked );
-                        }
-                    }
-
-// Derived From: http://www.iecss.com/shimprove/javascript/shimprove.1-0-1.js
-                    function shimCloneNode( elem ) {
-                        var div = document.createElement( "div" );
-                        safeFragment.appendChild( div );
-
-                        div.innerHTML = elem.outerHTML;
-                        return div.firstChild;
-                    }
-
-                    jQuery.extend({
-                        clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-                            var srcElements,
-                                destElements,
-                                i,
-                                // IE<=8 does not properly clone detached, unknown element nodes
-                                clone = jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ?
-                                    elem.cloneNode( true ) :
-                                    shimCloneNode( elem );
-
-                            if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
-                                (elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
-                                // IE copies events bound via attachEvent when using cloneNode.
-                                // Calling detachEvent on the clone will also remove the events
-                                // from the original. In order to get around this, we use some
-                                // proprietary methods to clear the events. Thanks to MooTools
-                                // guys for this hotness.
-
-                                cloneFixAttributes( elem, clone );
-
-                                // Using Sizzle here is crazy slow, so we use getElementsByTagName instead
-                                srcElements = getAll( elem );
-                                destElements = getAll( clone );
-
-                                // Weird iteration because IE will replace the length property
-                                // with an element if you are cloning the body and one of the
-                                // elements on the page has a name or id of "length"
-                                for ( i = 0; srcElements[i]; ++i ) {
-                                    // Ensure that the destination node is not null; Fixes #9587
-                                    if ( destElements[i] ) {
-                                        cloneFixAttributes( srcElements[i], destElements[i] );
-                                    }
-                                }
-                            }
-
-                            // Copy the events from the original to the clone
-                            if ( dataAndEvents ) {
-                                cloneCopyEvent( elem, clone );
-
-                                if ( deepDataAndEvents ) {
-                                    srcElements = getAll( elem );
-                                    destElements = getAll( clone );
-
-                                    for ( i = 0; srcElements[i]; ++i ) {
-                                        cloneCopyEvent( srcElements[i], destElements[i] );
-                                    }
-                                }
-                            }
-
-                            srcElements = destElements = null;
-
-                            // Return the cloned set
-                            return clone;
-                        },
-
-                        clean: function( elems, context, fragment, scripts ) {
-                            var checkScriptType, script, j,
-                                ret = [];
-
-                            context = context || document;
-
-                            // !context.createElement fails in IE with an error but returns typeof 'object'
-                            if ( typeof context.createElement === "undefined" ) {
-                                context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
-                            }
-
-                            for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
-                                if ( typeof elem === "number" ) {
-                                    elem += "";
-                                }
-
-                                if ( !elem ) {
-                                    continue;
-                                }
-
-                                // Convert html string into DOM nodes
-                                if ( typeof elem === "string" ) {
-                                    if ( !rhtml.test( elem ) ) {
-                                        elem = context.createTextNode( elem );
-                                    } else {
-                                        // Fix "XHTML"-style tags in all browsers
-                                        elem = elem.replace(rxhtmlTag, "<$1></$2>");
-
-                                        // Trim whitespace, otherwise indexOf won't work as expected
-                                        var tag = ( rtagName.exec( elem ) || ["", ""] )[1].toLowerCase(),
-                                            wrap = wrapMap[ tag ] || wrapMap._default,
-                                            depth = wrap[0],
-                                            div = context.createElement("div"),
-                                            safeChildNodes = safeFragment.childNodes,
-                                            remove;
-
-                                        // Append wrapper element to unknown element safe doc fragment
-                                        if ( context === document ) {
-                                            // Use the fragment we've already created for this document
-                                            safeFragment.appendChild( div );
-                                        } else {
-                                            // Use a fragment created with the owner document
-                                            createSafeFragment( context ).appendChild( div );
-                                        }
-
-                                        // Go to html and back, then peel off extra wrappers
-                                        div.innerHTML = wrap[1] + elem + wrap[2];
-
-                                        // Move to the right depth
-                                        while ( depth-- ) {
-                                            div = div.lastChild;
-                                        }
-
-                                        // Remove IE's autoinserted <tbody> from table fragments
-                                        if ( !jQuery.support.tbody ) {
-
-                                            // String was a <table>, *may* have spurious <tbody>
-                                            var hasBody = rtbody.test(elem),
-                                                tbody = tag === "table" && !hasBody ?
-                                                    div.firstChild && div.firstChild.childNodes :
-
-                                                    // String was a bare <thead> or <tfoot>
-                                                    wrap[1] === "<table>" && !hasBody ?
-                                                        div.childNodes :
-                                                        [];
-
-                                            for ( j = tbody.length - 1; j >= 0 ; --j ) {
-                                                if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length ) {
-                                                    tbody[ j ].parentNode.removeChild( tbody[ j ] );
-                                                }
-                                            }
-                                        }
-
-                                        // IE completely kills leading whitespace when innerHTML is used
-                                        if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
-                                            div.insertBefore( context.createTextNode( rleadingWhitespace.exec(elem)[0] ), div.firstChild );
-                                        }
-
-                                        elem = div.childNodes;
-
-                                        // Clear elements from DocumentFragment (safeFragment or otherwise)
-                                        // to avoid hoarding elements. Fixes #11356
-                                        if ( div ) {
-                                            div.parentNode.removeChild( div );
-
-                                            // Guard against -1 index exceptions in FF3.6
-                                            if ( safeChildNodes.length > 0 ) {
-                                                remove = safeChildNodes[ safeChildNodes.length - 1 ];
-
-                                                if ( remove && remove.parentNode ) {
-                                                    remove.parentNode.removeChild( remove );
-                                                }
-                                            }
-                                        }
-                                    }
-                                }
-
-                                // Resets defaultChecked for any radios and checkboxes
-                                // about to be appended to the DOM in IE 6/7 (#8060)
-                                var len;
-                                if ( !jQuery.support.appendChecked ) {
-                                    if ( elem[0] && typeof (len = elem.length) === "number" ) {
-                                        for ( j = 0; j < len; j++ ) {
-                                            findInputs( elem[j] );
-                                        }
-                                    } else {
-                                        findInputs( elem );
-                                    }
-                                }
-
-                                if ( elem.nodeType ) {
-                                    ret.push( elem );
-                                } else {
-                                    ret = jQuery.merge( ret, elem );
-                                }
-                            }
-
-                            if ( fragment ) {
-                                checkScriptType = function( elem ) {
-                                    return !elem.type || rscriptType.test( elem.type );
-                                };
-                                for ( i = 0; ret[i]; i++ ) {
-                                    script = ret[i];
-                                    if ( scripts && jQuery.nodeName( script, "script" ) && (!script.type || rscriptType.test( script.type )) ) {
-                                        scripts.push( script.parentNode ? script.parentNode.removeChild( script ) : script );
-
-                                    } else {
-                                        if ( script.nodeType === 1 ) {
-                                            var jsTags = jQuery.grep( script.getElementsByTagName( "script" ), checkScriptType );
-
-                                            ret.splice.apply( ret, [i + 1, 0].concat( jsTags ) );
-                                        }
-                                        fragment.appendChild( script );
-                                    }
-                                }
-                            }
-
-                            return ret;
-                        },
-
-                        cleanData: function( elems ) {
-                            var data, id,
-                                cache = jQuery.cache,
-                                special = jQuery.event.special,
-                                deleteExpando = jQuery.support.deleteExpando;
-
-                            for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
-                                if ( elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()] ) {
-                                    continue;
-                                }
-
-                                id = elem[ jQuery.expando ];
-
-                                if ( id ) {
-                                    data = cache[ id ];
-
-                                    if ( data && data.events ) {
-                                        for ( var type in data.events ) {
-                                            if ( special[ type ] ) {
-                                                jQuery.event.remove( elem, type );
-
-                                                // This is a shortcut to avoid jQuery.event.remove's overhead
-                                            } else {
-                                                jQuery.removeEvent( elem, type, data.handle );
-                                            }
-                                        }
-
-                                        // Null the DOM reference to avoid IE6/7/8 leak (#7054)
-                                        if ( data.handle ) {
-                                            data.handle.elem = null;
-                                        }
-                                    }
-
-                                    if ( deleteExpando ) {
-                                        delete elem[ jQuery.expando ];
-
-                                    } else if ( elem.removeAttribute ) {
-                                        elem.removeAttribute( jQuery.expando );
-                                    }
-
-                                    delete cache[ id ];
-                                }
-                            }
-                        }
-                    });
-
-
-
-
-                    var ralpha = /alpha\([^)]*\)/i,
-                        ropacity = /opacity=([^)]*)/,
-                        // fixed for IE9, see #8346
-                        rupper = /([A-Z]|^ms)/g,
-                        rnum = /^[\-+]?(?:\d*\.)?\d+$/i,
-                        rnumnonpx = /^-?(?:\d*\.)?\d+(?!px)[^\d\s]+$/i,
-                        rrelNum = /^([\-+])=([\-+.\de]+)/,
-                        rmargin = /^margin/,
-
-                        cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-
-                        // order is important!
-                        cssExpand = [ "Top", "Right", "Bottom", "Left" ],
-
-                        curCSS,
-
-                        getComputedStyle,
-                        currentStyle;
-
-                    jQuery.fn.css = function( name, value ) {
-                        return jQuery.access( this, function( elem, name, value ) {
-                            return value !== undefined ?
-                                jQuery.style( elem, name, value ) :
-                                jQuery.css( elem, name );
-                        }, name, value, arguments.length > 1 );
-                    };
-
-                    jQuery.extend({
-                        // Add in style property hooks for overriding the default
-                        // behavior of getting and setting a style property
-                        cssHooks: {
-                            opacity: {
-                                get: function( elem, computed ) {
-                                    if ( computed ) {
-                                        // We should always get a number back from opacity
-                                        var ret = curCSS( elem, "opacity" );
-                                        return ret === "" ? "1" : ret;
-
-                                    } else {
-                                        return elem.style.opacity;
-                                    }
-                                }
-                            }
-                        },
-
-                        // Exclude the following css properties to add px
-                        cssNumber: {
-                            "fillOpacity": true,
-                            "fontWeight": true,
-                            "lineHeight": true,
-                            "opacity": true,
-                            "orphans": true,
-                            "widows": true,
-                            "zIndex": true,
-                            "zoom": true
-                        },
-
-                        // Add in properties whose names you wish to fix before
-                        // setting or getting the value
-                        cssProps: {
-                            // normalize float css property
-                            "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
-                        },
-
-                        // Get and set the style property on a DOM Node
-                        style: function( elem, name, value, extra ) {
-                            // Don't set styles on text and comment nodes
-                            if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-                                return;
-                            }
-
-                            // Make sure that we're working with the right name
-                            var ret, type, origName = jQuery.camelCase( name ),
-                                style = elem.style, hooks = jQuery.cssHooks[ origName ];
-
-                            name = jQuery.cssProps[ origName ] || origName;
-
-                            // Check if we're setting a value
-                            if ( value !== undefined ) {
-                                type = typeof value;
-
-                                // convert relative number strings (+= or -=) to relative numbers. #7345
-                                if ( type === "string" && (ret = rrelNum.exec( value )) ) {
-                                    value = ( +( ret[1] + 1) * +ret[2] ) + parseFloat( jQuery.css( elem, name ) );
-                                    // Fixes bug #9237
-                                    type = "number";
-                                }
-
-                                // Make sure that NaN and null values aren't set. See: #7116
-                                if ( value == null || type === "number" && isNaN( value ) ) {
-                                    return;
-                                }
-
-                                // If a number was passed in, add 'px' to the (except for certain CSS properties)
-                                if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
-                                    value += "px";
-                                }
-
-                                // If a hook was provided, use that value, otherwise just set the specified value
-                                if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value )) !== undefined ) {
-                                    // Wrapped to prevent IE from throwing errors when 'invalid' values are provided
-                                    // Fixes bug #5509
-                                    try {
-                                        style[ name ] = value;
-                                    } catch(e) {}
-                                }
-
-                            } else {
-                                // If a hook was provided get the non-computed value from there
-                                if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
-                                    return ret;
-                                }
-
-                                // Otherwise just get the value from the style object
-                                return style[ name ];
-                            }
-                        },
-
-                        css: function( elem, name, extra ) {
-                            var ret, hooks;
-
-                            // Make sure that we're working with the right name
-                            name = jQuery.camelCase( name );
-                            hooks = jQuery.cssHooks[ name ];
-                            name = jQuery.cssProps[ name ] || name;
-
-                            // cssFloat needs a special treatment
-                            if ( name === "cssFloat" ) {
-                                name = "float";
-                            }
-
-                            // If a hook was provided get the computed value from there
-                            if ( hooks && "get" in hooks && (ret = hooks.get( elem, true, extra )) !== undefined ) {
-                                return ret;
-
-                                // Otherwise, if a way to get the computed value exists, use that
-                            } else if ( curCSS ) {
-                                return curCSS( elem, name );
-                            }
-                        },
-
-                        // A method for quickly swapping in/out CSS properties to get correct calculations
-                        swap: function( elem, options, callback ) {
-                            var old = {},
-                                ret, name;
-
-                            // Remember the old values, and insert the new ones
-                            for ( name in options ) {
-                                old[ name ] = elem.style[ name ];
-                                elem.style[ name ] = options[ name ];
-                            }
-
-                            ret = callback.call( elem );
-
-                            // Revert the old values
-                            for ( name in options ) {
-                                elem.style[ name ] = old[ name ];
-                            }
-
-                            return ret;
-                        }
-                    });
-
-// DEPRECATED in 1.3, Use jQuery.css() instead
-                    jQuery.curCSS = jQuery.css;
-
-                    if ( document.defaultView && document.defaultView.getComputedStyle ) {
-                        getComputedStyle = function( elem, name ) {
-                            var ret, defaultView, computedStyle, width,
-                                style = elem.style;
-
-                            name = name.replace( rupper, "-$1" ).toLowerCase();
-
-                            if ( (defaultView = elem.ownerDocument.defaultView) &&
-                                (computedStyle = defaultView.getComputedStyle( elem, null )) ) {
-
-                                ret = computedStyle.getPropertyValue( name );
-                                if ( ret === "" && !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {
-                                    ret = jQuery.style( elem, name );
-                                }
-                            }
-
-                            // A tribute to the "awesome hack by Dean Edwards"
-                            // WebKit uses "computed value (percentage if specified)" instead of "used value" for margins
-                            // which is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
-                            if ( !jQuery.support.pixelMargin && computedStyle && rmargin.test( name ) && rnumnonpx.test( ret ) ) {
-                                width = style.width;
-                                style.width = ret;
-                                ret = computedStyle.width;
-                                style.width = width;
-                            }
-
-                            return ret;
-                        };
-                    }
-
-                    if ( document.documentElement.currentStyle ) {
-                        currentStyle = function( elem, name ) {
-                            var left, rsLeft, uncomputed,
-                                ret = elem.currentStyle && elem.currentStyle[ name ],
-                                style = elem.style;
-
-                            // Avoid setting ret to empty string here
-                            // so we don't default to auto
-                            if ( ret == null && style && (uncomputed = style[ name ]) ) {
-                                ret = uncomputed;
-                            }
-
-                            // From the awesome hack by Dean Edwards
-                            // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
-
-                            // If we're not dealing with a regular pixel number
-                            // but a number that has a weird ending, we need to convert it to pixels
-                            if ( rnumnonpx.test( ret ) ) {
-
-                                // Remember the original values
-                                left = style.left;
-                                rsLeft = elem.runtimeStyle && elem.runtimeStyle.left;
-
-                                // Put in the new values to get a computed value out
-                                if ( rsLeft ) {
-                                    elem.runtimeStyle.left = elem.currentStyle.left;
-                                }
-                                style.left = name === "fontSize" ? "1em" : ret;
-                                ret = style.pixelLeft + "px";
-
-                                // Revert the changed values
-                                style.left = left;
-                                if ( rsLeft ) {
-                                    elem.runtimeStyle.left = rsLeft;
-                                }
-                            }
-
-                            return ret === "" ? "auto" : ret;
-                        };
-                    }
-
-                    curCSS = getComputedStyle || currentStyle;
-
-                    function getWidthOrHeight( elem, name, extra ) {
-
-                        // Start with offset property
-                        var val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
-                            i = name === "width" ? 1 : 0,
-                            len = 4;
-
-                        if ( val > 0 ) {
-                            if ( extra !== "border" ) {
-                                for ( ; i < len; i += 2 ) {
-                                    if ( !extra ) {
-                                        val -= parseFloat( jQuery.css( elem, "padding" + cssExpand[ i ] ) ) || 0;
-                                    }
-                                    if ( extra === "margin" ) {
-                                        val += parseFloat( jQuery.css( elem, extra + cssExpand[ i ] ) ) || 0;
-                                    } else {
-                                        val -= parseFloat( jQuery.css( elem, "border" + cssExpand[ i ] + "Width" ) ) || 0;
-                                    }
-                                }
-                            }
-
-                            return val + "px";
-                        }
-
-                        // Fall back to computed then uncomputed css if necessary
-                        val = curCSS( elem, name );
-                        if ( val < 0 || val == null ) {
-                            val = elem.style[ name ];
-                        }
-
-                        // Computed unit is not pixels. Stop here and return.
-                        if ( rnumnonpx.test(val) ) {
-                            return val;
-                        }
-
-                        // Normalize "", auto, and prepare for extra
-                        val = parseFloat( val ) || 0;
-
-                        // Add padding, border, margin
-                        if ( extra ) {
-                            for ( ; i < len; i += 2 ) {
-                                val += parseFloat( jQuery.css( elem, "padding" + cssExpand[ i ] ) ) || 0;
-                                if ( extra !== "padding" ) {
-                                    val += parseFloat( jQuery.css( elem, "border" + cssExpand[ i ] + "Width" ) ) || 0;
-                                }
-                                if ( extra === "margin" ) {
-                                    val += parseFloat( jQuery.css( elem, extra + cssExpand[ i ]) ) || 0;
-                                }
-                            }
-                        }
-
-                        return val + "px";
-                    }
-
-// 遍历 height 和 width 数组，为它们添加 cssHooks
-                    jQuery.each(["height", "width"], function (i, name) {
-                        jQuery.cssHooks[name] = {
-                            // 获取元素的 height 或 width 属性值
-                            get: function (elem, computed, extra) {
-                                if (computed) {
-                                    // 如果元素的 offsetWidth 不为 0
-                                    if (elem.offsetWidth!== 0) {
-                                        return getWidthOrHeight(elem, name, extra);
-                                    } else {
-                                        // 使用 jQuery.swap 方法临时设置元素的样式，然后获取属性值
-                                        return jQuery.swap(elem, cssShow, function () {
-                                            return getWidthOrHeight(elem, name, extra);
-                                        });
-                                    }
-                                }
-                            },
-                            // 设置元素的 height 或 width 属性值
-                            set: function (elem, value) {
-                                // 如果值是数字，添加 px 单位，否则直接返回
-                                return rnum.test(value)? value + "px" : value;
-                            }
-                        };
-                    });
-
-// 如果不支持 opacity，为 opacity 添加 cssHooks
-                    if (!jQuery.support.opacity) {
-                        jQuery.cssHooks.opacity = {
-                            // 获取元素的 opacity 属性值
-                            get: function (elem, computed) {
-                                // IE 使用 filters 来表示 opacity
-                                return ropacity.test((computed && elem.currentStyle? elem.currentStyle.filter : elem.style.filter) || "")?
-                                    (parseFloat(RegExp.$1) / 100) + "" :
-                                    computed? "1" : "";
-                            },
-                            // 设置元素的 opacity 属性值
-                            set: function (elem, value) {
-                                var style = elem.style,
-                                    currentStyle = elem.currentStyle,
-                                    opacity = jQuery.isNumeric(value)? "alpha(opacity=" + value * 100 + ")" : "",
-                                    filter = currentStyle && currentStyle.filter || style.filter || "";
-
-                                // IE 对于没有布局的元素设置 opacity 会有问题，通过设置 zoom 来强制布局
-                                style.zoom = 1;
-
-                                // 如果设置 opacity 为 1，且没有其他过滤器存在，尝试移除 filter 属性 #6652
-                                if (value >= 1 && jQuery.trim(filter.replace(ralpha, "")) === "") {
-                                    // 设置 style.filter 为 null 或 "" 或 " " 仍然会在 cssText 中留下 "filter:"，如果存在 "filter:"，clearType 会被禁用，我们想要避免这个问题
-                                    // style.removeAttribute 是 IE 特有的，但这段代码似乎只在 IE 中使用
-                                    style.removeAttribute("filter");
-
-                                    // 如果没有在 css 规则中应用 filter 样式，完成操作
-                                    if (currentStyle &&!currentStyle.filter) {
-                                        return;
-                                    }
-                                }
-
-                                // 否则，设置新的 filter 值
-                                style.filter = ralpha.test(filter)?
-                                    filter.replace(ralpha, opacity) :
-                                    filter + " " + opacity;
-                            }
-                        };
-                    }
-
-// 在 DOM 加载完成后添加 marginRight 的 cssHook
-                    jQuery(function () {
-                        // 这个 hook 直到 DOM 加载完成后才能添加，因为对它的支持测试要在 DOM 加载完成后进行
-                        if (!jQuery.support.reliableMarginRight) {
-                            jQuery.cssHooks.marginRight = {
-                                // 获取元素的 marginRight 属性值
-                                get: function (elem, computed) {
-                                    // WebKit Bug 13343 - getComputedStyle 返回错误的 margin-right 值
-                                    // 通过临时将元素的显示设置为 inline-block 来解决
-                                    return jQuery.swap(elem, {"display": "inline-block"}, function () {
-                                        if (computed) {
-                                            return curCSS(elem, "margin-right");
-                                        } else {
-                                            return elem.style.marginRight;
-                                        }
-                                    });
-                                }
-                            };
-                        }
-                    });
-
-// 检查 jQuery.expr 和 jQuery.expr.filters 是否存在
-                    if (jQuery.expr && jQuery.expr.filters) {
-                        // 为 jQuery.expr.filters 添加 hidden 过滤器
-                        jQuery.expr.filters.hidden = function (elem) {
-                            var width = elem.offsetWidth,
-                                height = elem.offsetHeight;
-                            // 判断元素是否隐藏，根据宽度和高度是否都为 0 或者不支持 reliableHiddenOffsets 且元素的显示为 none 来判断
-                            return (width === 0 && height === 0) || (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css(elem, "display")) === "none");
-                        };
-                        // 为 jQuery.expr.filters 添加 visible 过滤器，可见元素就是不隐藏的元素
-                        jQuery.expr.filters.visible = function (elem) {
-                            return!jQuery.expr.filters.hidden(elem);
-                        };
-                    }
-
-// 这些钩子被 animate 函数用来扩展属性
-                    jQuery.each({
-                        margin: "",
-                        padding: "",
-                        border: "Width"
-                    }, function (prefix, suffix) {
-                        jQuery.cssHooks[prefix + suffix] = {
-                            // 扩展函数，将输入值扩展为包含四个方向属性的对象
-                            expand: function (value) {
-                                var i,
-                                    // 如果不是字符串则假设是单个数字，否则将字符串按空格拆分为数组
-                                    parts = typeof value === "string"? value.split(" ") : [value],
-                                    expanded = {};
-                                for (i = 0; i < 4; i++) {
-                                    expanded[prefix + cssExpand[i] + suffix] =
-                                        parts[i] || parts[i - 2] || parts[0];
-                                }
-                                return expanded;
-                            }
-                        };
-                    });
-
-
-                    var r20 = /%20/g,
-                        rbracket = /\[\]$/,
-                        rCRLF = /\r?\n/g,
-                        rhash = /#.*$/,
-                        rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE 在 EOL 处会留下一个 \r 字符
-                        rinput = /^(?:color|date|datetime|datetime-local|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
-                        // #7653, #8125, #8152: 本地协议检测
-                        rlocalProtocol = /^(?:about|app|app\-storage|.+\-extension|file|res|widget):$/,
-                        rnoContent = /^(?:GET|HEAD)$/,
-                        rprotocol = /^\/\//,
-                        rquery = /\?/,
-                        rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
-                        rselectTextarea = /^(?:select|textarea)/i,
-                        rspacesAjax = /\s+/,
-                        rts = /([?&])_=[^&]*/,
-                        rurl = /^([\w+\.\-]+:)(?:\/\/([^\/?#:]*)(?::(\d+))?/,
-                        // 保存旧的 load 方法
-                        _load = jQuery.fn.load,
-                        // Prefilters
-                        // 1) 它们可用于引入自定义数据类型（例如 ajax/jsonp.js 中的示例）
-                        // 2) 它们在请求传输之前和参数序列化之后调用（如果 s.processData 为 true，则 s.data 是一个字符串）
-                        // 3) key 是数据类型
-                        // 4) 通配符 "*" 可以使用
-                        // 5) 执行将从传输数据类型开始，然后根据需要继续到 "*"
-                        prefilters = {},
-                        // Transports bindings
-                        // 1) key 是数据类型
-                        // 2) 通配符 "*" 可以使用
-                        // 3) 选择将从传输数据类型开始，然后根据需要到 "*"
-                        transports = {},
-                        // 文档位置
-                        ajaxLocation,
-                        // 文档位置的部分
-                        ajaxLocParts,
-                        // 避免注释序言字符序列 (#10098)；必须满足 lint 并避免压缩
-                        allTypes = ["*/"] + ["*"];
-
-// #8138, IE 可能在访问 window.location 的字段时抛出异常，如果 document.domain 已设置
-                    try {
-                        // 获取 location.href
-                        ajaxLocation = location.href;
-                    } catch (e) {
-                        // 使用 A 元素的 href 属性
-                        // 因为 IE 会根据 document.location 修改它
-                        ajaxLocation = document.createElement("a");
-                        ajaxLocation.href = "";
-                        ajaxLocation = ajaxLocation.href;
-                    }
-
-// Segment location into parts
-// 执行 rurl 正则表达式匹配，将结果存储在 ajaxLocParts 中，如果没有匹配结果则存储空数组
-                    ajaxLocParts = rurl.exec(ajaxLocation.toLowerCase()) || [];
-
-// jQuery.ajaxPrefilter 和 jQuery.ajaxTransport 的基础“构造函数”
-                    function addToPrefiltersOrTransports(structure) {
-                        // dataTypeExpression 是可选的，默认为 "*"
-                        return function (dataTypeExpression, func) {
-                            // 如果 dataTypeExpression 不是字符串，将 func 作为 dataTypeExpression，并将 dataTypeExpression 设为 "*"
-                            if (typeof dataTypeExpression!== "string") {
-                                func = dataTypeExpression;
-                                dataTypeExpression = "*";
-                            }
-
-                            if (jQuery.isFunction(func)) {
-                                var dataTypes = dataTypeExpression.toLowerCase().split(rspacesAjax),
-                                    i = 0,
-                                    length = dataTypes.length,
-                                    dataType,
-                                    list,
-                                    placeBefore;
-
-                                // 对于 dataTypeExpression 中的每个数据类型
-                                for (; i < length; i++) {
-                                    dataType = dataTypes[i];
-                                    // 检查是否需要添加到已有元素之前
-                                    placeBefore = /^\+/.test(dataType);
-                                    if (placeBefore) {
-                                        dataType = dataType.substr(1) || "*";
-                                    }
-                                    // 获取或创建存储结构中对应的数据类型列表
-                                    list = structure[dataType] = structure[dataType] || [];
-                                    // 根据 placeBefore 的情况将 func 添加到列表的开头或末尾
-                                    list[placeBefore? "unshift" : "push"](func);
-                                }
-                            }
-                        };
-                    }
-
-// 预过滤器和传输器的基础检查函数
-                    function inspectPrefiltersOrTransports(structure, options, originalOptions, jqXHR,
-                                                           dataType /* internal */, inspected /* internal */) {
-                        dataType = dataType || options.dataTypes[0];
-                        inspected = inspected || {};
-                        // 标记已检查的数据类型
-                        inspected[dataType] = true;
-
-                        var list = structure[dataType],
-                            i = 0,
-                            length = list? list.length : 0,
-                            executeOnly = (structure === prefilters),
-                            selection;
-
-                        for (; i < length && (executeOnly ||!selection); i++) {
-                            selection = list[i](options, originalOptions, jqXHR);
-                            // 如果重定向到另一个数据类型
-                            // 如果仅执行且尚未完成，则尝试新的数据类型
-                            if (typeof selection === "string") {
-                                if (!executeOnly || inspected[selection]) {
-                                    selection = undefined;
-                                } else {
-                                    options.dataTypes.unshift(selection);
-                                    // 递归调用自身检查新的数据类型
-                                    selection = inspectPrefiltersOrTransports(
-                                        structure, options, originalOptions, jqXHR, selection, inspected);
-                                }
-                            }
-                        }
-                        // 如果仅执行或未选择任何内容，并且未检查过通配符数据类型
-                        if ((executeOnly ||!selection) &&!inspected["*"]) {
-                            selection = inspectPrefiltersOrTransports(
-                                structure, options, originalOptions, jqXHR, "*", inspected);
-                        }
-                        // 对于预过滤器不必要，但调用者会忽略
-                        return selection;
-                    }
-
-// 一个特殊的 ajax 选项扩展函数
-// 接受“扁平”选项（不进行深度扩展）
-// 修复 #9887 问题
-                    function ajaxExtend(target, src) {
-                        var key, deep,
-                            flatOptions = jQuery.ajaxSettings.flatOptions || {};
-                        for (key in src) {
-                            if (src[key]!== undefined) {
-                                // 根据 flatOptions 决定是否进行深度扩展
-                                (flatOptions[key]? target : (deep || (deep = {})))[key] = src[key];
-                            }
-                        }
-                        if (deep) {
-                            jQuery.extend(true, target, deep);
-                        }
-                    }
-
-                    jQuery.fn.extend({
-                        load: function (url, params, callback) {
-                            // 如果 url 不是字符串且 _load 存在，使用 _load 函数
-                            if (typeof url!== "string" && _load) {
-                                return _load.apply(this, arguments);
-                            }
-                            // 如果没有元素请求，不执行请求，直接返回 jQuery 对象
-                            else if (!this.length) {
-                                return this;
-                            }
-
-                            var off = url.indexOf(" ");
-                            if (off >= 0) {
-                                var selector = url.slice(off, url.length);
-                                url = url.slice(0, off);
-                            }
-
-                            // 默认使用 GET 请求
-                            var type = "GET";
-
-                            // 如果提供了第二个参数
-                            if (params) {
-                                // 如果是函数，将其作为回调函数
-                                if (jQuery.isFunction(params)) {
-                                    callback = params;
-                                    params = undefined;
-                                }
-                                // 如果是对象，将其转换为参数字符串并使用 POST 请求
-                                else if (typeof params === "object") {
-                                    params = jQuery.param(params, jQuery.ajaxSettings.traditional);
-                                    type = "POST";
-                                }
-                            }
-
-                            var self = this;
-
-// Request the remote document
-                            jQuery.ajax({
-                                // 请求的 URL
-                                url: url,
-                                // 请求的类型，默认为 GET 或根据前面的处理设置为 POST
-                                type: type,
-                                // 期望的数据类型为 HTML
-                                dataType: "html",
-                                // 请求的数据，可能是参数
-                                data: params,
-                                // 完成回调函数
-                                complete: function (jqXHR, status, responseText) {
-                                    // 将响应存储为 jqXHR 对象指定的内容
-                                    responseText = jqXHR.responseText;
-                                    // 如果请求成功
-                                    if (jqXHR.isResolved()) {
-                                        // #4825: 获取实际的响应，以防 ajaxSettings 中存在数据过滤器
-                                        jqXHR.done(function (r) {
-                                            responseText = r;
-                                        });
-                                        // 检查是否指定了选择器
-                                        self.html(selector?
-                                            // 创建一个虚拟的 div 来存储结果
-                                            jQuery("<div>")
-                                                // 注入文档内容，移除脚本以避免 IE 中的 'Permission Denied' 错误
-                                                .append(responseText.replace(rscript, ""))
-                                                // 查找指定的元素
-                                                .find(selector) :
-                                            // 如果没有指定选择器，直接注入完整的结果
-                                            responseText);
-                                    }
-
-                                    if (callback) {
-                                        // 为每个元素执行回调函数，传递响应文本、状态和 jqXHR 对象
-                                        self.each(callback, [responseText, status, jqXHR]);
-                                    }
-                                }
-                            });
-
-// 返回 jQuery 对象本身
-                            return this;
-                        },
-
-// serialize 函数，将表单元素序列化为字符串
-                        serialize: function () {
-                            // 使用 jQuery.param 对序列化数组的结果进行处理
-                            return jQuery.param(this.serializeArray());
-                        },
-
-// serializeArray 函数，将表单元素序列化为数组
-                        serializeArray: function () {
-                            return this.map(function () {
-                                // 对于元素集合中的元素，如果有 elements 属性则转换为数组，否则保持不变
-                                return this.elements? jQuery.makeArray(this.elements) : this;
-                            })
-                                // 过滤元素，只保留满足条件的元素
-                                .filter(function () {
-                                    return this.name &&!this.disabled &&
-                                        (this.checked || rselectTextarea.test(this.nodeName) ||
-                                            rinput.test(this.type));
-                                })
-                                // 映射元素，将元素转换为对象，处理元素的值
-                                .map(function (i, elem) {
-                                    var val = jQuery(this).val();
-                                    return val == null?
-                                        null :
-                                        jQuery.isArray(val)?
-                                            // 对于数组类型的值，为每个元素创建对象
-                                            jQuery.map(val, function (val, i) {
-                                                return {name: elem.name, value: val.replace(rCRLF, "\r\n")};
-                                            }) :
-                                            // 对于非数组类型的值，创建对象
-                                            {name: elem.name, value: val.replace(rCRLF, "\r\n")};
-                                }).get();
-                        });
-
-// 为处理常见的 AJAX 事件附加一系列函数
-                    jQuery.each("ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function (i, o) {
-                        // 为 jQuery.fn 扩展事件处理函数，调用 on 方法添加事件监听器
-                        jQuery.fn[o] = function (f) {
-                            return this.on(o, f);
-                        };
-                    });
-
-                    jQuery.each(["get", "post"], function (i, method) {
-                        // 为 jQuery 扩展 get 和 post 方法
-                        jQuery[method] = function (url, data, callback, type) {
-                            // 如果数据参数被省略，调整参数顺序
-                            if (jQuery.isFunction(data)) {
-                                type = type || callback;
-                                callback = data;
-                                data = undefined;
-                            }
-
-                            // 发起 AJAX 请求
-                            return jQuery.ajax({
-                                type: method,
-                                url: url,
-                                data: data,
-                                // 成功回调函数
-                                success: callback,
-                                dataType: type
-                            });
-                        };
-                    });
-                    jQuery.extend({
-
-                        // getScript 函数，用于获取脚本资源
-                        getScript: function (url, callback) {
-                            // 调用 jQuery.get 方法，指定数据类型为 script
-                            return jQuery.get(url, undefined, callback, "script");
-                        },
-
-                        // getJSON 函数，用于获取 JSON 资源
-                        getJSON: function (url, data, callback) {
-                            // 调用 jQuery.get 方法，指定数据类型为 json
-                            return jQuery.get(url, data, callback, "json");
-                        },
-
-                        // ajaxSetup 函数，创建完整的设置对象，可对 ajaxSettings 进行扩展或更新
-                        ajaxSetup: function (target, settings) {
-                            if (settings) {
-                                // 构建一个新的设置对象，将 ajaxSettings 扩展到 target 中
-                                ajaxExtend(target, jQuery.ajaxSettings);
-                            } else {
-                                // 如果没有 settings 参数，将 target 视为 settings，将 ajaxSettings 作为目标扩展对象
-                                settings = target;
-                                target = jQuery.ajaxSettings;
-                            }
-                            // 扩展目标对象，将 settings 的属性添加到目标对象中
-                            ajaxExtend(target, settings);
-                            return target;
-                        },
-
-                        ajaxSettings: {
-                            // 请求的默认 URL
-                            url: ajaxLocation,
-                            // 判断是否为本地请求
-                            isLocal: rlocalProtocol.test(ajaxLocParts[1]),
-                            // 全局标志，默认为 true
-                            global: true,
-                            // 请求的默认类型为 GET
-                            type: "GET",
-                            // 默认的内容类型
-                            contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-                            // 是否处理数据，默认为 true
-                            processData: true,
-                            // 请求是否异步，默认为 true
-                            async: true,
-                            /*
-            timeout: 0,
-            data: null,
-            dataType: null,
-            username: null,
-            password: null,
-            cache: null,
-            traditional: false,
-            headers: {},
-            */
-
-                            accepts: {
-                                // 不同数据类型的可接受内容
-                                xml: "application/xml, text/xml",
-                                html: "text/html",
-                                text: "text/plain",
-                                json: "application/json, text/javascript",
-                                "*": allTypes
-                            },
-
-                            contents: {
-                                // 不同数据类型的内容匹配规则
-                                xml: /xml/,
-                                html: /html/,
-                                json: /json/
-                            },
-
-                            responseFields: {
-                                // 不同数据类型对应的响应字段
-                                xml: "responseXML",
-                                text: "responseText"
-                            },
-
-                            // 数据转换器列表
-                            // 1) 键的格式是 "source_type destination_type"（中间有一个空格）
-                            // 2) 通配符 "*" 可用于 source_type
-                            converters: {
-
-                                // 将任何类型转换为文本
-                                "* text": window.String,
-
-                                // 将文本转换为 html（true 表示无转换）
-                                "text html": true,
-
-                                // 将文本解析为 json 表达式
-                                "text json": jQuery.parseJSON,
-
-                                // 将文本解析为 xml
-                                "text xml": jQuery.parseXML
-                            },
-
-                            // 对于不应该深度扩展的选项：
-                            // 你可以在此处添加自己的自定义选项，当你创建一个不应该深度扩展的选项时（见 ajaxExtend 函数）
-                            flatOptions: {
-                                context: true,
-                                url: true
-                            }
-                        },
-
-                        ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-                        ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-                        // Main method
-                        ajax: function( url, options ) {
-
-                            // If url is an object, simulate pre-1.5 signature
-                            if ( typeof url === "object" ) {
-                                options = url;
-                                url = undefined;
-                            }
-
-                            // Force options to be an object
-                            options = options || {};
-
-                            var // Create the final options object
-                                s = jQuery.ajaxSetup( {}, options ),
-                                // Callbacks context
-                                callbackContext = s.context || s,
-                                // Context for global events
-                                // It's the callbackContext if one was provided in the options
-                                // and if it's a DOM node or a jQuery collection
-                                globalEventContext = callbackContext !== s &&
-                                ( callbackContext.nodeType || callbackContext instanceof jQuery ) ?
-                                    jQuery( callbackContext ) : jQuery.event,
-                                // Deferreds
-                                deferred = jQuery.Deferred(),
-                                completeDeferred = jQuery.Callbacks( "once memory" ),
-                                // Status-dependent callbacks
-                                statusCode = s.statusCode || {},
-                                // ifModified key
-                                ifModifiedKey,
-                                // Headers (they are sent all at once)
-                                requestHeaders = {},
-                                requestHeadersNames = {},
-                                // Response headers
-                                responseHeadersString,
-                                responseHeaders,
-                                // transport
-                                transport,
-                                // timeout handle
-                                timeoutTimer,
-                                // Cross-domain detection vars
-                                parts,
-                                // The jqXHR state
-                                state = 0,
-                                // To know if global events are to be dispatched
-                                fireGlobals,
-                                // Loop variable
-                                i,
-                                // Fake xhr
-                                jqXHR = {
-
-                                    readyState: 0,
-
-                                    // Caches the header
-                                    setRequestHeader: function( name, value ) {
-                                        if ( !state ) {
-                                            var lname = name.toLowerCase();
-                                            name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
-                                            requestHeaders[ name ] = value;
-                                        }
-                                        return this;
-                                    },
-
-                                    // Raw string
-                                    getAllResponseHeaders: function() {
-                                        return state === 2 ? responseHeadersString : null;
-                                    },
-
-                                    // Builds headers hashtable if needed
-                                    getResponseHeader: function( key ) {
-                                        var match;
-                                        if ( state === 2 ) {
-                                            if ( !responseHeaders ) {
-                                                responseHeaders = {};
-                                                while( ( match = rheaders.exec( responseHeadersString ) ) ) {
-                                                    responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
-                                                }
-                                            }
-                                            match = responseHeaders[ key.toLowerCase() ];
-                                        }
-                                        return match === undefined ? null : match;
-                                    },
-
-                                    // Overrides response content-type header
-                                    overrideMimeType: function( type ) {
-                                        if ( !state ) {
-                                            s.mimeType = type;
-                                        }
-                                        return this;
-                                    },
-
-                                    // Cancel the request
-                                    abort: function( statusText ) {
-                                        statusText = statusText || "abort";
-                                        if ( transport ) {
-                                            transport.abort( statusText );
-                                        }
-                                        done( 0, statusText );
-                                        return this;
-                                    }
-                                };
-
-                            // Callback for when everything is done
-                            // It is defined here because jslint complains if it is declared
-                            // at the end of the function (which would be more logical and readable)
-                            function done( status, nativeStatusText, responses, headers ) {
-
-                                // Called once
-                                if ( state === 2 ) {
-                                    return;
-                                }
-
-                                // State is "done" now
-                                state = 2;
-
-                                // Clear timeout if it exists
-                                if ( timeoutTimer ) {
-                                    clearTimeout( timeoutTimer );
-                                }
-
-                                // Dereference transport for early garbage collection
-                                // (no matter how long the jqXHR object will be used)
-                                transport = undefined;
-
-                                // Cache response headers
-                                responseHeadersString = headers || "";
-
-                                // Set readyState
-                                jqXHR.readyState = status > 0 ? 4 : 0;
-
-                                var isSuccess,
-                                    success,
-                                    error,
-                                    statusText = nativeStatusText,
-                                    response = responses ? ajaxHandleResponses( s, jqXHR, responses ) : undefined,
-                                    lastModified,
-                                    etag;
-
-                                // If successful, handle type chaining
-                                if ( status >= 200 && status < 300 || status === 304 ) {
-
-                                    // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-                                    if ( s.ifModified ) {
-
-                                        if ( ( lastModified = jqXHR.getResponseHeader( "Last-Modified" ) ) ) {
-                                            jQuery.lastModified[ ifModifiedKey ] = lastModified;
-                                        }
-                                        if ( ( etag = jqXHR.getResponseHeader( "Etag" ) ) ) {
-                                            jQuery.etag[ ifModifiedKey ] = etag;
-                                        }
-                                    }
-
-                                    // If not modified
-                                    if ( status === 304 ) {
-
-                                        statusText = "notmodified";
-                                        isSuccess = true;
-
-                                        // If we have data
-                                    } else {
-
-                                        try {
-                                            success = ajaxConvert( s, response );
-                                            statusText = "success";
-                                            isSuccess = true;
-                                        } catch(e) {
-                                            // We have a parsererror
-                                            statusText = "parsererror";
-                                            error = e;
-                                        }
-                                    }
-                                } else {
-                                    // We extract error from statusText
-                                    // then normalize statusText and status for non-aborts
-                                    error = statusText;
-                                    if ( !statusText || status ) {
-                                        statusText = "error";
-                                        if ( status < 0 ) {
-                                            status = 0;
-                                        }
-                                    }
-                                }
-
-                                // Set data for the fake xhr object
-                                jqXHR.status = status;
-                                jqXHR.statusText = "" + ( nativeStatusText || statusText );
-
-                                // Success/Error
-                                if ( isSuccess ) {
-                                    deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-                                } else {
-                                    deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-                                }
-
-                                // Status-dependent callbacks
-                                jqXHR.statusCode( statusCode );
-                                statusCode = undefined;
-
-                                if ( fireGlobals ) {
-                                    globalEventContext.trigger( "ajax" + ( isSuccess ? "Success" : "Error" ),
-                                        [ jqXHR, s, isSuccess ? success : error ] );
-                                }
-
-                                // Complete
-                                completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-                                if ( fireGlobals ) {
-                                    globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-                                    // Handle the global AJAX counter
-                                    if ( !( --jQuery.active ) ) {
-                                        jQuery.event.trigger( "ajaxStop" );
-                                    }
-                                }
-                            }
-
-                            // Attach deferreds
-                            deferred.promise( jqXHR );
-                            jqXHR.success = jqXHR.done;
-                            jqXHR.error = jqXHR.fail;
-                            jqXHR.complete = completeDeferred.add;
-
-                            // Status-dependent callbacks
-                            jqXHR.statusCode = function( map ) {
-                                if ( map ) {
-                                    var tmp;
-                                    if ( state < 2 ) {
-                                        for ( tmp in map ) {
-                                            statusCode[ tmp ] = [ statusCode[tmp], map[tmp] ];
-                                        }
-                                    } else {
-                                        tmp = map[ jqXHR.status ];
-                                        jqXHR.then( tmp, tmp );
-                                    }
-                                }
-                                return this;
-                            };
-
-                            // Remove hash character (#7531: and string promotion)
-                            // Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
-                            // We also use the url parameter if available
-                            s.url = ( ( url || s.url ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
-
-                            // Extract dataTypes list
-                            s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().split( rspacesAjax );
-
-                            // Determine if a cross-domain request is in order
-                            if ( s.crossDomain == null ) {
-                                parts = rurl.exec( s.url.toLowerCase() );
-                                s.crossDomain = !!( parts &&
-                                    ( parts[ 1 ] != ajaxLocParts[ 1 ] || parts[ 2 ] != ajaxLocParts[ 2 ] ||
-                                        ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-                                        ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
-                                );
-                            }
-
-                            // Convert data if not already a string
-                            if ( s.data && s.processData && typeof s.data !== "string" ) {
-                                s.data = jQuery.param( s.data, s.traditional );
-                            }
-
-                            // Apply prefilters
-                            inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-                            // If request was aborted inside a prefilter, stop there
-                            if ( state === 2 ) {
-                                return false;
-                            }
-
-                            // We can fire global events as of now if asked to
-                            fireGlobals = s.global;
-
-                            // Uppercase the type
-                            s.type = s.type.toUpperCase();
-
-                            // Determine if request has content
-                            s.hasContent = !rnoContent.test( s.type );
-
-                            // Watch for a new set of requests
-                            if ( fireGlobals && jQuery.active++ === 0 ) {
-                                jQuery.event.trigger( "ajaxStart" );
-                            }
-
-                            // More options handling for requests with no content
-                            if ( !s.hasContent ) {
-
-                                // If data is available, append data to url
-                                if ( s.data ) {
-                                    s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.data;
-                                    // #9682: remove data so that it's not used in an eventual retry
-                                    delete s.data;
-                                }
-
-                                // Get ifModifiedKey before adding the anti-cache parameter
-                                ifModifiedKey = s.url;
-
-                                // Add anti-cache in url if needed
-                                if ( s.cache === false ) {
-
-                                    var ts = jQuery.now(),
-                                        // try replacing _= if it is there
-                                        ret = s.url.replace( rts, "$1_=" + ts );
-
-                                    // if nothing was replaced, add timestamp to the end
-                                    s.url = ret + ( ( ret === s.url ) ? ( rquery.test( s.url ) ? "&" : "?" ) + "_=" + ts : "" );
-                                }
-                            }
-
-                            // Set the correct header, if data is being sent
-                            if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-                                jqXHR.setRequestHeader( "Content-Type", s.contentType );
-                            }
-
-                            // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-                            if ( s.ifModified ) {
-                                ifModifiedKey = ifModifiedKey || s.url;
-                                if ( jQuery.lastModified[ ifModifiedKey ] ) {
-                                    jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ ifModifiedKey ] );
-                                }
-                                if ( jQuery.etag[ ifModifiedKey ] ) {
-                                    jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ ifModifiedKey ] );
-                                }
-                            }
-
-                            // Set the Accepts header for the server, depending on the dataType
-                            jqXHR.setRequestHeader(
-                                "Accept",
-                                s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-                                    s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-                                    s.accepts[ "*" ]
-                            );
-
-                            // Check for headers option
-                            for ( i in s.headers ) {
-                                jqXHR.setRequestHeader( i, s.headers[ i ] );
-                            }
-
-                            // Allow custom headers/mimetypes and early abort
-                            if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-                                // Abort if not done already
-                                jqXHR.abort();
-                                return false;
-
-                            }
-
-                            // Install callbacks on deferreds
-                            for ( i in { success: 1, error: 1, complete: 1 } ) {
-                                jqXHR[ i ]( s[ i ] );
-                            }
-
-                            // Get transport
-                            transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-                            // If no transport, we auto-abort
-                            if ( !transport ) {
-                                done( -1, "No Transport" );
-                            } else {
-                                jqXHR.readyState = 1;
-                                // Send global event
-                                if ( fireGlobals ) {
-                                    globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-                                }
-                                // Timeout
-                                if ( s.async && s.timeout > 0 ) {
-                                    timeoutTimer = setTimeout( function(){
-                                        jqXHR.abort( "timeout" );
-                                    }, s.timeout );
-                                }
-
-                                try {
-                                    state = 1;
-                                    transport.send( requestHeaders, done );
-                                } catch (e) {
-                                    // Propagate exception as error if not done
-                                    if ( state < 2 ) {
-                                        done( -1, e );
-                                        // Simply rethrow otherwise
-                                    } else {
-                                        throw e;
-                                    }
-                                }
-                            }
-
-                            return jqXHR;
-                        },
-
-                        // Serialize an array of form elements or a set of
-                        // key/values into a query string
-                        param: function( a, traditional ) {
-                            var s = [],
-                                add = function( key, value ) {
-                                    // If value is a function, invoke it and return its value
-                                    value = jQuery.isFunction( value ) ? value() : value;
-                                    s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-                                };
-
-                            // Set traditional to true for jQuery <= 1.3.2 behavior.
-                            if ( traditional === undefined ) {
-                                traditional = jQuery.ajaxSettings.traditional;
-                            }
-
-                            // If an array was passed in, assume that it is an array of form elements.
-                            if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-                                // Serialize the form elements
-                                jQuery.each( a, function() {
-                                    add( this.name, this.value );
-                                });
-
-                            } else {
-                                // If traditional, encode the "old" way (the way 1.3.2 or older
-                                // did it), otherwise encode params recursively.
-                                for ( var prefix in a ) {
-                                    buildParams( prefix, a[ prefix ], traditional, add );
-                                }
-                            }
-
-                            // Return the resulting serialization
-                            return s.join( "&" ).replace( r20, "+" );
-                        }
-                    });
-
-                    function buildParams( prefix, obj, traditional, add ) {
-                        if ( jQuery.isArray( obj ) ) {
-                            // Serialize array item.
-                            jQuery.each( obj, function( i, v ) {
-                                if ( traditional || rbracket.test( prefix ) ) {
-                                    // Treat each array item as a scalar.
-                                    add( prefix, v );
-
-                                } else {
-                                    // If array item is non-scalar (array or object), encode its
-                                    // numeric index to resolve deserialization ambiguity issues.
-                                    // Note that rack (as of 1.0.0) can't currently deserialize
-                                    // nested arrays properly, and attempting to do so may cause
-                                    // a server error. Possible fixes are to modify rack's
-                                    // deserialization algorithm or to provide an option or flag
-                                    // to force array serialization to be shallow.
-                                    buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
-                                }
-                            });
-
-                        } else if ( !traditional && jQuery.type( obj ) === "object" ) {
-                            // Serialize object item.
-                            for ( var name in obj ) {
-                                buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-                            }
-
-                        } else {
-                            // Serialize scalar item.
-                            add( prefix, obj );
-                        }
-                    }
-
-// This is still on the jQuery object... for now
-// Want to move this to jQuery.ajax some day
-                    jQuery.extend({
-
-                        // Counter for holding the number of active queries
-                        active: 0,
-
-                        // Last-Modified header cache for next request
-                        lastModified: {},
-                        etag: {}
-
-                    });
-
-                    /* Handles responses to an ajax request:
- * - sets all responseXXX fields accordingly
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-                    function ajaxHandleResponses( s, jqXHR, responses ) {
-
-                        var contents = s.contents,
-                            dataTypes = s.dataTypes,
-                            responseFields = s.responseFields,
-                            ct,
-                            type,
-                            finalDataType,
-                            firstDataType;
-
-                        // Fill responseXXX fields
-                        for ( type in responseFields ) {
-                            if ( type in responses ) {
-                                jqXHR[ responseFields[type] ] = responses[ type ];
-                            }
-                        }
-
-                        // Remove auto dataType and get content-type in the process
-                        while( dataTypes[ 0 ] === "*" ) {
-                            dataTypes.shift();
-                            if ( ct === undefined ) {
-                                ct = s.mimeType || jqXHR.getResponseHeader( "content-type" );
-                            }
-                        }
-
-                        // Check if we're dealing with a known content-type
-                        if ( ct ) {
-                            for ( type in contents ) {
-                                if ( contents[ type ] && contents[ type ].test( ct ) ) {
-                                    dataTypes.unshift( type );
-                                    break;
-                                }
-                            }
-                        }
-
-                        // Check to see if we have a response for the expected dataType
-                        if ( dataTypes[ 0 ] in responses ) {
-                            finalDataType = dataTypes[ 0 ];
-                        } else {
-                            // Try convertible dataTypes
-                            for ( type in responses ) {
-                                if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
-                                    finalDataType = type;
-                                    break;
-                                }
-                                if ( !firstDataType ) {
-                                    firstDataType = type;
-                                }
-                            }
-                            // Or just use first one
-                            finalDataType = finalDataType || firstDataType;
-                        }
-
-                        // If we found a dataType
-                        // We add the dataType to the list if needed
-                        // and return the corresponding response
-                        if ( finalDataType ) {
-                            if ( finalDataType !== dataTypes[ 0 ] ) {
-                                dataTypes.unshift( finalDataType );
-                            }
-                            return responses[ finalDataType ];
-                        }
-                    }
-
-// Chain conversions given the request and the original response
-                    function ajaxConvert( s, response ) {
-
-                        // Apply the dataFilter if provided
-                        if ( s.dataFilter ) {
-                            response = s.dataFilter( response, s.dataType );
-                        }
-
-                        var dataTypes = s.dataTypes,
-                            converters = {},
-                            i,
-                            key,
-                            length = dataTypes.length,
-                            tmp,
-                            // Current and previous dataTypes
-                            current = dataTypes[ 0 ],
-                            prev,
-                            // Conversion expression
-                            conversion,
-                            // Conversion function
-                            conv,
-                            // Conversion functions (transitive conversion)
-                            conv1,
-                            conv2;
-
-                        // For each dataType in the chain
-                        for ( i = 1; i < length; i++ ) {
-
-                            // Create converters map
-                            // with lowercased keys
-                            if ( i === 1 ) {
-                                for ( key in s.converters ) {
-                                    if ( typeof key === "string" ) {
-                                        converters[ key.toLowerCase() ] = s.converters[ key ];
-                                    }
-                                }
-                            }
-
-                            // Get the dataTypes
-                            prev = current;
-                            current = dataTypes[ i ];
-
-                            // If current is auto dataType, update it to prev
-                            if ( current === "*" ) {
-                                current = prev;
-                                // If no auto and dataTypes are actually different
-                            } else if ( prev !== "*" && prev !== current ) {
-
-                                // Get the converter
-                                conversion = prev + " " + current;
-                                conv = converters[ conversion ] || converters[ "* " + current ];
-
-                                // If there is no direct converter, search transitively
-                                if ( !conv ) {
-                                    conv2 = undefined;
-                                    for ( conv1 in converters ) {
-                                        tmp = conv1.split( " " );
-                                        if ( tmp[ 0 ] === prev || tmp[ 0 ] === "*" ) {
-                                            conv2 = converters[ tmp[1] + " " + current ];
-                                            if ( conv2 ) {
-                                                conv1 = converters[ conv1 ];
-                                                if ( conv1 === true ) {
-                                                    conv = conv2;
-                                                } else if ( conv2 === true ) {
-                                                    conv = conv1;
-                                                }
-                                                break;
-                                            }
-                                        }
-                                    }
-                                }
-                                // If we found no converter, dispatch an error
-                                if ( !( conv || conv2 ) ) {
-                                    jQuery.error( "No conversion from " + conversion.replace(" "," to ") );
-                                }
-                                // If found converter is not an equivalence
-                                if ( conv !== true ) {
-                                    // Convert with 1 or 2 converters accordingly
-                                    response = conv ? conv( response ) : conv2( conv1(response) );
-                                }
-                            }
-                        }
-                        return response;
-                    }
-
-
-
-
-                    var jsc = jQuery.now(),
-                        jsre = /(\=)\?(&|$)|\?\?/i;
-
-// Default jsonp settings
-                    jQuery.ajaxSetup({
-                        jsonp: "callback",
-                        jsonpCallback: function() {
-                            return jQuery.expando + "_" + ( jsc++ );
-                        }
-                    });
-
-// Detect, normalize options and install callbacks for jsonp requests
-                    jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-                        var inspectData = ( typeof s.data === "string" ) && /^application\/x\-www\-form\-urlencoded/.test( s.contentType );
-
-                        if ( s.dataTypes[ 0 ] === "jsonp" ||
-                            s.jsonp !== false && ( jsre.test( s.url ) ||
-                                inspectData && jsre.test( s.data ) ) ) {
-
-                            var responseContainer,
-                                jsonpCallback = s.jsonpCallback =
-                                    jQuery.isFunction( s.jsonpCallback ) ? s.jsonpCallback() : s.jsonpCallback,
-                                previous = window[ jsonpCallback ],
-                                url = s.url,
-                                data = s.data,
-                                replace = "$1" + jsonpCallback + "$2";
-
-                            if ( s.jsonp !== false ) {
-                                url = url.replace( jsre, replace );
-                                if ( s.url === url ) {
-                                    if ( inspectData ) {
-                                        data = data.replace( jsre, replace );
-                                    }
-                                    if ( s.data === data ) {
-                                        // Add callback manually
-                                        url += (/\?/.test( url ) ? "&" : "?") + s.jsonp + "=" + jsonpCallback;
-                                    }
-                                }
-                            }
-
-                            s.url = url;
-                            s.data = data;
-
-                            // Install callback
-                            window[ jsonpCallback ] = function( response ) {
-                                responseContainer = [ response ];
-                            };
-
-                            // Clean-up function
-                            jqXHR.always(function() {
-                                // Set callback back to previous value
-                                window[ jsonpCallback ] = previous;
-                                // Call if it was a function and we have a response
-                                if ( responseContainer && jQuery.isFunction( previous ) ) {
-                                    window[ jsonpCallback ]( responseContainer[ 0 ] );
-                                }
-                            });
-
-                            // Use data converter to retrieve json after script execution
-                            s.converters["script json"] = function() {
-                                if ( !responseContainer ) {
-                                    jQuery.error( jsonpCallback + " was not called" );
-                                }
-                                return responseContainer[ 0 ];
-                            };
-
-                            // force json dataType
-                            s.dataTypes[ 0 ] = "json";
-
-                            // Delegate to script
-                            return "script";
-                        }
-                    });
-
-
-
-
-// Install script dataType
-                    jQuery.ajaxSetup({
-                        accepts: {
-                            script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
-                        },
-                        contents: {
-                            script: /javascript|ecmascript/
-                        },
-                        converters: {
-                            "text script": function( text ) {
-                                jQuery.globalEval( text );
-                                return text;
-                            }
-                        }
-                    });
-
-// Handle cache's special case and global
-                    jQuery.ajaxPrefilter( "script", function( s ) {
-                        if ( s.cache === undefined ) {
-                            s.cache = false;
-                        }
-                        if ( s.crossDomain ) {
-                            s.type = "GET";
-                            s.global = false;
-                        }
-                    });
-
-// Bind script tag hack transport
-                    jQuery.ajaxTransport( "script", function(s) {
-
-                        // This transport only deals with cross domain requests
-                        if ( s.crossDomain ) {
-
-                            var script,
-                                head = document.head || document.getElementsByTagName( "head" )[0] || document.documentElement;
-
-                            return {
+            };
 
-                                send: function( _, callback ) {
+        // Callback for when everything is done
+        // It is defined here because jslint complains if it is declared
+        // at the end of the function (which would be more logical and readable)
+        function done( status, nativeStatusText, responses, headers ) {
+            // Called once
+            if ( state === 2 ) {
+                // 如果状态等于 2，则直接返回
+                return;
+            }
 
-                                    script = document.createElement( "script" );
+            // State is "done" now
+            state = 2;
 
-                                    script.async = "async";
+            // Clear timeout if it exists
+            if ( timeoutTimer ) {
+                // 如果存在超时定时器，则清除它
+                clearTimeout( timeoutTimer );
+            }
 
-                                    if ( s.scriptCharset ) {
-                                        script.charset = s.scriptCharset;
-                                    }
+            // Dereference transport for early garbage collection
+            // (no matter how long the jqXHR object will be used)
+            transport = undefined;
 
-                                    script.src = s.url;
+            // Cache response headers
+            responseHeadersString = headers || "";
 
-                                    // Attach handlers for all browsers
-                                    script.onload = script.onreadystatechange = function( _, isAbort ) {
+            // Set readyState
+            jqXHR.readyState = status > 0? 4 : 0;
 
-                                        if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {
+            var isSuccess,
+                success,
+                error,
+                statusText = nativeStatusText,
+                response = responses? ajaxHandleResponses( s, jqXHR, responses ) : undefined,
+                lastModified,
+                etag;
 
-                                            // Handle memory leak in IE
-                                            script.onload = script.onreadystatechange = null;
+            // If successful, handle type chaining
+            if ( status >= 200 && status < 300 || status === 304 ) {
+                // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+                if ( s.ifModified ) {
+                    if ( ( lastModified = jqXHR.getResponseHeader( "Last-Modified" ) ) ) {
+                        // 如果存在 Last-Modified 响应头，将其存储在 jQuery.lastModified 对象中
+                        jQuery.lastModified[ ifModifiedKey ] = lastModified;
+                    }
+                    if ( ( etag = jqXHR.getResponseHeader( "Etag" ) ) ) {
+                        // 如果存在 Etag 响应头，将其存储在 jQuery.etag 对象中
+                        jQuery.etag[ ifModifiedKey ] = etag;
+                    }
+                }
 
-                                            // Remove the script
-                                            if ( head && script.parentNode ) {
-                                                head.removeChild( script );
-                                            }
+                // If not modified
+                if ( status === 304 ) {
+                    statusText = "notmodified";
+                    isSuccess = true;
+                } else {
+                    // If we have data
+                    try {
+                        // 尝试将响应转换为相应的数据格式
+                        success = ajaxConvert( s, response );
+                        statusText = "success";
+                        isSuccess = true;
+                    } catch(e) {
+                        // We have a parsererror
+                        statusText = "parsererror";
+                        error = e;
+                    }
+                }
+            } else {
+                // We extract error from statusText
+                // then normalize statusText and status for non-aborts
+                error = statusText;
+                if (!statusText || status ) {
+                    statusText = "error";
+                    if ( status < 0 ) {
+                        status = 0;
+                    }
+                }
+            }
 
-                                            // Dereference the script
-                                            script = undefined;
+            // Set data for the fake xhr object
+            jqXHR.status = status;
+            jqXHR.statusText = "" + ( nativeStatusText || statusText );
 
-                                            // Callback if not abort
-                                            if ( !isAbort ) {
-                                                callback( 200, "success" );
-                                            }
-                                        }
-                                    };
-                                    // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
-                                    // This arises when a base node is used (#2709 and #4378).
-                                    head.insertBefore( script, head.firstChild );
-                                },
-
-                                abort: function() {
-                                    if ( script ) {
-                                        script.onload( 0, 1 );
-                                    }
-                                }
-                            };
-                        }
-                    });
+            // Success/Error
+            if ( isSuccess ) {
+                // 若请求成功，使用 deferred 对象的 resolveWith 方法解决承诺
+                deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+            } else {
+                // 若请求失败，使用 deferred 对象的 rejectWith 方法拒绝承诺
+                deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+            }
 
+            // Status-dependent callbacks
+            jqXHR.statusCode( statusCode );
+            statusCode = undefined;
 
+            if ( fireGlobals ) {
+                // 触发全局的 ajax 成功或失败事件
+                globalEventContext.trigger( "ajax" + ( isSuccess? "Success" : "Error" ),
+                    [ jqXHR, s, isSuccess? success : error ] );
+            }
 
+            // Complete
+            completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
 
-                    var // #5280: Internet Explorer will keep connections alive if we don't abort on unload
-                        xhrOnUnloadAbort = window.ActiveXObject ? function() {
-                            // Abort all pending requests
-                            for ( var key in xhrCallbacks ) {
-                                xhrCallbacks[ key ]( 0, 1 );
-                            }
-                        } : false,
-                        xhrId = 0,
-                        xhrCallbacks;
+            if ( fireGlobals ) {
+                // 触发全局的 ajax 完成事件
+                globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+                // Handle the global AJAX counter
+                if (!( --jQuery.active ) ) {
+                    // 如果 jQuery.active 减为 0，触发 ajaxStop 事件
+                    jQuery.event.trigger( "ajaxStop" );
+                }
+            }
+        }
 
-// Functions to create xhrs
-                    function createStandardXHR() {
-                        try {
-                            return new window.XMLHttpRequest();
-                        } catch( e ) {}
+// Attach deferreds
+        deferred.promise( jqXHR );
+        jqXHR.success = jqXHR.done;
+        jqXHR.error = jqXHR.fail;
+        jqXHR.complete = completeDeferred.add;
+
+// Status-dependent callbacks
+        jqXHR.statusCode = function( map ) {
+            if ( map ) {
+                var tmp;
+                if ( state < 2 ) {
+                    for ( tmp in map ) {
+                        // 存储状态码映射关系
+                        statusCode[ tmp ] = [ statusCode[tmp], map[tmp] ];
                     }
+                } else {
+                    tmp = map[ jqXHR.status ];
+                    // 根据状态码添加相应的 then 处理
+                    jqXHR.then( tmp, tmp );
+                }
+            }
+            return this;
+        };
 
-                    function createActiveXHR() {
-                        try {
-                            return new window.ActiveXObject( "Microsoft.XMLHTTP" );
-                        } catch( e ) {}
-                    }
+// Remove hash character (#7531: and string promotion)
+// Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
+// We also use the url parameter if available
+        s.url = ( ( url || s.url ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
+
+// Extract dataTypes list
+        s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().split( rspacesAjax );
+
+// Determine if a cross-domain request is in order
+        if ( s.crossDomain == null ) {
+            parts = rurl.exec( s.url.toLowerCase() );
+            s.crossDomain =!!( parts &&
+                ( parts[ 1 ]!= ajaxLocParts[ 1 ] || parts[ 2 ]!= ajaxLocParts[ 2 ] ||
+                    ( parts[ 3 ] || ( parts[ 1 ] === "http:"? 80 : 443 ) )!=
+                    ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:"? 80 : 443 ) ) )
+            );
+        }
 
-// Create the request object
-// (This is still attached to ajaxSettings for backward compatibility)
-                    jQuery.ajaxSettings.xhr = window.ActiveXObject ?
-                        /* Microsoft failed to properly
-	 * implement the XMLHttpRequest in IE7 (can't request local files),
-	 * so we use the ActiveXObject when it is available
-	 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
-	 * we need a fallback.
-	 */
-                        function() {
-                            return !this.isLocal && createStandardXHR() || createActiveXHR();
-                        } :
-                        // For all other browsers, use the standard XMLHttpRequest object
-                        createStandardXHR;
+// Convert data if not already a string
+        if ( s.data && s.processData && typeof s.data!== "string" ) {
+            // 将数据转换为查询字符串形式
+            s.data = jQuery.param( s.data, s.traditional );
+        }
 
-// Determine support properties
-                    (function( xhr ) {
-                        jQuery.extend( jQuery.support, {
-                            ajax: !!xhr,
-                            cors: !!xhr && ( "withCredentials" in xhr )
-                        });
-                    })( jQuery.ajaxSettings.xhr() );
+// Apply prefilters
+        inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
 
-// Create transport if the browser can provide an xhr
-                    if ( jQuery.support.ajax ) {
+// If request was aborted inside a prefilter, stop there
+        if ( state === 2 ) {
+            // 如果在预过滤器中请求被中止，则返回 false
+            return false;
+        }
 
-                        jQuery.ajaxTransport(function( s ) {
-                            // Cross domain only allowed if supported through XMLHttpRequest
-                            if ( !s.crossDomain || jQuery.support.cors ) {
+// We can fire global events as of now if asked to
+        fireGlobals = s.global;
 
-                                var callback;
+// Uppercase the type
+        s.type = s.type.toUpperCase();
 
-                                return {
-                                    send: function( headers, complete ) {
+// Determine if request has content
+        s.hasContent =!rnoContent.test( s.type );
 
-                                        // Get a new xhr
-                                        var xhr = s.xhr(),
-                                            handle,
-                                            i;
+// Watch for a new set of requests
+        if ( fireGlobals && jQuery.active++ === 0 ) {
+            // 如果允许触发全局事件且 jQuery.active 为 0，则触发 ajaxStart 事件
+            jQuery.event.trigger( "ajaxStart" );
+        }
 
-                                        // Open the socket
-                                        // Passing null username, generates a login popup on Opera (#2865)
-                                        if ( s.username ) {
-                                            xhr.open( s.type, s.url, s.async, s.username, s.password );
-                                        } else {
-                                            xhr.open( s.type, s.url, s.async );
-                                        }
+// More options handling for requests with no content
+        if (!s.hasContent ) {
+            // If data is available, append data to url
+            if ( s.data ) {
+                s.url += ( rquery.test( s.url )? "&" : "?" ) + s.data;
+                // #9682: remove data so that it's not used in an eventual retry
+                delete s.data;
+            }
 
-                                        // Apply custom fields if provided
-                                        if ( s.xhrFields ) {
-                                            for ( i in s.xhrFields ) {
-                                                xhr[ i ] = s.xhrFields[ i ];
-                                            }
-                                        }
+            // Get ifModifiedKey before adding the anti-cache parameter
+            ifModifiedKey = s.url;
 
-                                        // Override mime type if needed
-                                        if ( s.mimeType && xhr.overrideMimeType ) {
-                                            xhr.overrideMimeType( s.mimeType );
-                                        }
+            // Add anti-cache in url if needed
+            if ( s.cache === false ) {
+                var ts = jQuery.now(),
+                    // try replacing _= if it is there
+                    ret = s.url.replace( rts, "$1_=" + ts );
 
-                                        // X-Requested-With header
-                                        // For cross-domain requests, seeing as conditions for a preflight are
-                                        // akin to a jigsaw puzzle, we simply never set it to be sure.
-                                        // (it can always be set on a per-request basis or even using ajaxSetup)
-                                        // For same-domain requests, won't change header if already provided.
-                                        if ( !s.crossDomain && !headers["X-Requested-With"] ) {
-                                            headers[ "X-Requested-With" ] = "XMLHttpRequest";
-                                        }
+                // if nothing was replaced, add timestamp to the end
+                s.url = ret + ( ( ret === s.url )? ( rquery.test( s.url )? "&" : "?" ) + "_=" + ts : "" );
+            }
+        }
 
-                                        // Need an extra try/catch for cross domain requests in Firefox 3
-                                        try {
-                                            for ( i in headers ) {
-                                                xhr.setRequestHeader( i, headers[ i ] );
-                                            }
-                                        } catch( _ ) {}
-
-                                        // Do send the request
-                                        // This may raise an exception which is actually
-                                        // handled in jQuery.ajax (so no try/catch here)
-                                        xhr.send( ( s.hasContent && s.data ) || null );
-
-                                        // Listener
-                                        callback = function( _, isAbort ) {
-
-                                            var status,
-                                                statusText,
-                                                responseHeaders,
-                                                responses,
-                                                xml;
-
-                                            // Firefox throws exceptions when accessing properties
-                                            // of an xhr when a network error occured
-                                            // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
-                                            try {
-
-                                                // Was never called and is aborted or complete
-                                                if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
-
-                                                    // Only called once
-                                                    callback = undefined;
-
-                                                    // Do not keep as active anymore
-                                                    if ( handle ) {
-                                                        xhr.onreadystatechange = jQuery.noop;
-                                                        if ( xhrOnUnloadAbort ) {
-                                                            delete xhrCallbacks[ handle ];
-                                                        }
-                                                    }
-
-                                                    // If it's an abort
-                                                    if ( isAbort ) {
-                                                        // Abort it manually if needed
-                                                        if ( xhr.readyState !== 4 ) {
-                                                            xhr.abort();
-                                                        }
-                                                    } else {
-                                                        status = xhr.status;
-                                                        responseHeaders = xhr.getAllResponseHeaders();
-                                                        responses = {};
-                                                        xml = xhr.responseXML;
-
-                                                        // Construct response list
-                                                        if ( xml && xml.documentElement /* #4958 */ ) {
-                                                            responses.xml = xml;
-                                                        }
-
-                                                        // When requesting binary data, IE6-9 will throw an exception
-                                                        // on any attempt to access responseText (#11426)
-                                                        try {
-                                                            responses.text = xhr.responseText;
-                                                        } catch( _ ) {
-                                                        }
-
-                                                        // Firefox throws an exception when accessing
-                                                        // statusText for faulty cross-domain requests
-                                                        try {
-                                                            statusText = xhr.statusText;
-                                                        } catch( e ) {
-                                                            // We normalize with Webkit giving an empty statusText
-                                                            statusText = "";
-                                                        }
-
-                                                        // Filter status for non standard behaviors
-
-                                                        // If the request is local and we have data: assume a success
-                                                        // (success with no data won't get notified, that's the best we
-                                                        // can do given current implementations)
-                                                        if ( !status && s.isLocal && !s.crossDomain ) {
-                                                            status = responses.text ? 200 : 404;
-                                                            // IE - #1450: sometimes returns 1223 when it should be 204
-                                                        } else if ( status === 1223 ) {
-                                                            status = 204;
-                                                        }
-                                                    }
-                                                }
-                                            } catch( firefoxAccessException ) {
-                                                if ( !isAbort ) {
-                                                    complete( -1, firefoxAccessException );
-                                                }
-                                            }
+// Set the correct header, if data is being sent
+        if ( s.data && s.hasContent && s.contentType!== false || options.contentType ) {
+            // 设置请求的 Content-Type 头
+            jqXHR.setRequestHeader( "Content-Type", s.contentType );
+        }
 
-                                            // Call complete if needed
-                                            if ( responses ) {
-                                                complete( status, statusText, responses, responseHeaders );
-                                            }
-                                        };
+// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+        if ( s.ifModified ) {
+            ifModifiedKey = ifModifiedKey || s.url;
+            if ( jQuery.lastModified[ ifModifiedKey ] ) {
+                // 设置 If-Modified-Since 头
+                jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ ifModifiedKey ] );
+            }
+            if ( jQuery.etag[ ifModifiedKey ] ) {
+                // 设置 If-None-Match 头
+                jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ ifModifiedKey ] );
+            }
+        }
 
-                                        // if we're in sync mode or it's in cache
-                                        // and has been retrieved directly (IE6 & IE7)
-                                        // we need to manually fire the callback
-                                        if ( !s.async || xhr.readyState === 4 ) {
-                                            callback();
-                                        } else {
-                                            handle = ++xhrId;
-                                            if ( xhrOnUnloadAbort ) {
-                                                // Create the active xhrs callbacks list if needed
-                                                // and attach the unload handler
-                                                if ( !xhrCallbacks ) {
-                                                    xhrCallbacks = {};
-                                                    jQuery( window ).unload( xhrOnUnloadAbort );
-                                                }
-                                                // Add to list of active xhrs callbacks
-                                                xhrCallbacks[ handle ] = callback;
-                                            }
-                                            xhr.onreadystatechange = callback;
-                                        }
-                                    },
+        // Set the Accepts header for the server, depending on the dataType
+        jqXHR.setRequestHeader(
+            "Accept",
+            s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ]?
+                s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ]!== "*"? ", " + allTypes + "; q=0.01" : "" ) :
+                s.accepts[ "*" ]
+        );
+// 设置请求的 Accept 头信息，根据 dataTypes 和 accepts 属性进行设置
+
+// Check for headers option
+        for ( i in s.headers ) {
+            // 遍历 s.headers 并设置请求头信息
+            jqXHR.setRequestHeader( i, s.headers[ i ] );
+        }
 
-                                    abort: function() {
-                                        if ( callback ) {
-                                            callback(0,1);
-                                        }
-                                    }
-                                };
-                            }
-                        });
-                    }
+// Allow custom headers/mimetypes and early abort
+        if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
+            // 如果 beforeSend 回调返回 false 或者状态为 2，则中止请求
+            // Abort if not done already
+            jqXHR.abort();
+            return false;
+        }
 
+// Install callbacks on deferreds
+        for ( i in { success: 1, error: 1, complete: 1 } ) {
+            // 为 success、error、complete 事件安装回调函数
+            jqXHR[ i ]( s[ i ] );
+        }
 
+// Get transport
+        transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+// 获取传输对象
 
+// If no transport, we auto-abort
+        if (!transport ) {
+            // 如果没有传输对象，完成请求并设置状态为 -1 及相应的错误信息
+            done( -1, "No Transport" );
+        } else {
+            jqXHR.readyState = 1;
+            // Send global event
+            if ( fireGlobals ) {
+                // 发送全局的 ajaxSend 事件
+                globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+            }
+            // Timeout
+            if ( s.async && s.timeout > 0 ) {
+                // 设置超时定时器，如果超时则中止请求
+                timeoutTimer = setTimeout( function(){
+                    jqXHR.abort( "timeout" );
+                }, s.timeout );
+            }
 
-                    var elemdisplay = {},
-                        iframe, iframeDoc,
-                        rfxtypes = /^(?:toggle|show|hide)$/,
-                        rfxnum = /^([+\-]=)?([\d+.\-]+)([a-z%]*)$/i,
-                        timerId,
-                        fxAttrs = [
-                            // height animations
-                            [ "height", "marginTop", "marginBottom", "paddingTop", "paddingBottom" ],
-                            // width animations
-                            [ "width", "marginLeft", "marginRight", "paddingLeft", "paddingRight" ],
-                            // opacity animations
-                            [ "opacity" ]
-                        ],
-                        fxNow;
+            try {
+                state = 1;
+                // 发送请求，并将 done 作为完成回调函数
+                transport.send( requestHeaders, done );
+            } catch (e) {
+                // Propagate exception as error if not done
+                if ( state < 2 ) {
+                    // 如果状态小于 2，将异常作为错误完成请求
+                    done( -1, e );
+                    // Simply rethrow otherwise
+                } else {
+                    // 否则重新抛出异常
+                    throw e;
+                }
+            }
+        }
 
-                    jQuery.fn.extend({
-                        show: function( speed, easing, callback ) {
-                            var elem, display;
+        return jqXHR;
+    },
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+    param: function( a, traditional ) {
+        var s = [],
+            add = function( key, value ) {
+                // If value is a function, invoke it and return its value
+                value = jQuery.isFunction( value )? value() : value;
+                // 将键值对添加到数组 s 中，并进行 URI 编码
+                s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
+            };
 
-                            if ( speed || speed === 0 ) {
-                                return this.animate( genFx("show", 3), speed, easing, callback );
+        // Set traditional to true for jQuery <= 1.3.2 behavior.
+        if ( traditional === undefined ) {
+            traditional = jQuery.ajaxSettings.traditional;
+        }
 
-                            } else {
-                                for ( var i = 0, j = this.length; i < j; i++ ) {
-                                    elem = this[ i ];
+        // If an array was passed in, assume that it is an array of form elements.
+        if ( jQuery.isArray( a ) || ( a.jquery &&!jQuery.isPlainObject( a ) ) ) {
+            // Serialize the form elements
+            jQuery.each( a, function() {
+                // 遍历数组或 jQuery 对象，调用 add 函数添加键值对
+                add( this.name, this.value );
+            });
 
-                                    if ( elem.style ) {
-                                        display = elem.style.display;
+        } else {
+            // If traditional, encode the "old" way (the way 1.3.2 or older
+            // did it), otherwise encode params recursively.
+            for ( var prefix in a ) {
+                // 对于对象，调用 buildParams 进行参数构建
+                buildParams( prefix, a[ prefix ], traditional, add );
+            }
+        }
 
-                                        // Reset the inline display of this element to learn if it is
-                                        // being hidden by cascaded rules or not
-                                        if ( !jQuery._data(elem, "olddisplay") && display === "none" ) {
-                                            display = elem.style.display = "";
-                                        }
+        // Return the resulting serialization
+        return s.join( "&" ).replace( r20, "+" );
+        // 将数组元素拼接为查询字符串并替换相应字符
+    }
+});
 
-                                        // Set elements which have been overridden with display: none
-                                        // in a stylesheet to whatever the default browser style is
-                                        // for such an element
-                                        if ( (display === "" && jQuery.css(elem, "display") === "none") ||
-                                            !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {
-                                            jQuery._data( elem, "olddisplay", defaultDisplay(elem.nodeName) );
-                                        }
-                                    }
-                                }
+function buildParams( prefix, obj, traditional, add ) {
+    if ( jQuery.isArray( obj ) ) {
+        // Serialize array item.
+        jQuery.each( obj, function( i, v ) {
+            if ( traditional || rbracket.test( prefix ) ) {
+                // Treat each array item as a scalar.
+                // 将数组元素作为标量添加
+                add( prefix, v );
 
-                                // Set the display of most of the elements in a second loop
-                                // to avoid the constant reflow
-                                for ( i = 0; i < j; i++ ) {
-                                    elem = this[ i ];
+            } else {
+                // If array item is non-scalar (array or object), encode its
+                // numeric index to resolve deserialization ambiguity issues.
+                // Note that rack (as of 1.0.0) can't currently deserialize
+                // nested arrays properly, and attempting to do so may cause
+                // a server error. Possible fixes are to modify rack's
+                // deserialization algorithm or to provide an option or flag
+                // to force array serialization to be shallow.
+                // 对于非标量数组元素，递归调用 buildParams 进行编码
+                buildParams( prefix + "[" + ( typeof v === "object"? i : "" ) + "]", v, traditional, add );
+            }
+        });
 
-                                    if ( elem.style ) {
-                                        display = elem.style.display;
+    } else if (!traditional && jQuery.type( obj ) === "object" ) {
+        // Serialize object item.
+        for ( var name in obj ) {
+            // 对于对象，递归调用 buildParams 进行编码
+            buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+        }
 
-                                        if ( display === "" || display === "none" ) {
-                                            elem.style.display = jQuery._data( elem, "olddisplay" ) || "";
-                                        }
-                                    }
-                                }
+    } else {
+        // Serialize scalar item.
+        // 对于标量，直接添加
+        add( prefix, obj );
+    }
+}
 
-                                return this;
-                            }
-                        },
+// This is still on the jQuery object... for now
+// Want to move this to jQuery.ajax some day
+jQuery.extend({
 
-                        hide: function( speed, easing, callback ) {
-                            if ( speed || speed === 0 ) {
-                                return this.animate( genFx("hide", 3), speed, easing, callback);
+    // Counter for holding the number of active queries
+    active: 0,
+    // 存储活动请求的数量
 
-                            } else {
-                                var elem, display,
-                                    i = 0,
-                                    j = this.length;
+    // Last-Modified header cache for next request
+    lastModified: {},
+    etag: {}
+    // 存储 Last-Modified 和 Etag 头信息
+});
 
-                                for ( ; i < j; i++ ) {
-                                    elem = this[i];
-                                    if ( elem.style ) {
-                                        display = jQuery.css( elem, "display" );
+/* Handles responses to an ajax request:
+ * - sets all responseXXX fields accordingly
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+    var contents = s.contents,
+        dataTypes = s.dataTypes,
+        responseFields = s.responseFields,
+        ct,
+        type,
+        finalDataType,
+        firstDataType;
+
+    // Fill responseXXX fields
+    for ( type in responseFields ) {
+        if ( type in responses ) {
+            // 填充响应字段
+            jqXHR[ responseFields[type] ] = responses[ type ];
+        }
+    }
 
-                                        if ( display !== "none" && !jQuery._data( elem, "olddisplay" ) ) {
-                                            jQuery._data( elem, "olddisplay", display );
-                                        }
-                                    }
-                                }
+    // Remove auto dataType and get content-type in the process
+    while( dataTypes[ 0 ] === "*" ) {
+        dataTypes.shift();
+        if ( ct === undefined ) {
+            // 获取响应的 content-type 头信息
+            ct = s.mimeType || jqXHR.getResponseHeader( "content-type" );
+        }
+    }
 
-                                // Set the display of the elements in a second loop
-                                // to avoid the constant reflow
-                                for ( i = 0; i < j; i++ ) {
-                                    if ( this[i].style ) {
-                                        this[i].style.display = "none";
-                                    }
-                                }
+    // Check if we're dealing with a known content-type
+    if ( ct ) {
+        for ( type in contents ) {
+            if ( contents[ type ] && contents[ type ].test( ct ) ) {
+                // 根据 content-type 找到对应的 dataType 并添加到 dataTypes 头部
+                dataTypes.unshift( type );
+                break;
+            }
+        }
+    }
 
-                                return this;
-                            }
-                        },
+    // Check to see if we have a response for the expected dataType
+    if ( dataTypes[ 0 ] in responses ) {
+        // 如果存在期望的数据类型的响应，设置最终的数据类型
+        finalDataType = dataTypes[ 0 ];
+    } else {
+        // Try convertible dataTypes
+        for ( type in responses ) {
+            if (!dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
+                finalDataType = type;
+                break;
+            }
+            if (!firstDataType ) {
+                firstDataType = type;
+            }
+        }
+        // Or just use first one
+        finalDataType = finalDataType || firstDataType;
+    }
 
-                        // Save the old toggle function
-                        _toggle: jQuery.fn.toggle,
+    // If we found a dataType
+    // We add the dataType to the list if needed
+    // and return the corresponding response
+    if ( finalDataType ) {
+        if ( finalDataType!== dataTypes[ 0 ] ) {
+            dataTypes.unshift( finalDataType );
+        }
+        return responses[ finalDataType ];
+        // 返回最终的数据类型的响应
+    }
+}
 
-                        toggle: function( fn, fn2, callback ) {
-                            var bool = typeof fn === "boolean";
+// Chain conversions given the request and the original response
+function ajaxConvert( s, response ) {
 
-                            if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
-                                this._toggle.apply( this, arguments );
+    // Apply the dataFilter if provided
+    if ( s.dataFilter ) {
+        // 应用数据过滤器
+        response = s.dataFilter( response, s.dataType );
+    }
 
-                            } else if ( fn == null || bool ) {
-                                this.each(function() {
-                                    var state = bool ? fn : jQuery(this).is(":hidden");
-                                    jQuery(this)[ state ? "show" : "hide" ]();
-                                });
+    var dataTypes = s.dataTypes,
+        converters = {},
+        i,
+        key,
+        length = dataTypes.length,
+        tmp,
+        // Current and previous dataTypes
+        current = dataTypes[ 0 ],
+        prev,
+        // Conversion expression
+        conversion,
+        // Conversion function
+        conv,
+        // Conversion functions (transitive conversion)
+        conv1,
+        conv2;
+
+    // For each dataType in the chain
+    for ( i = 1; i < length; i++ ) {
+
+        // Create converters map
+        // with lowercased keys
+        if ( i === 1 ) {
+            for ( key in s.converters ) {
+                if ( typeof key === "string" ) {
+                    // 创建转换器映射
+                    converters[ key.toLowerCase() ] = s.converters[ key ];
+                }
+            }
+        }
 
-                            } else {
-                                this.animate(genFx("toggle", 3), fn, fn2, callback);
+        // Get the dataTypes
+        prev = current;
+        current = dataTypes[ i ];
+
+        // If current is auto dataType, update it to prev
+        if ( current === "*" ) {
+            current = prev;
+            // If no auto and dataTypes are actually different
+        } else if ( prev!== "*" && prev!== current ) {
+
+            // Get the converter
+            conversion = prev + " " + current;
+            conv = converters[ conversion ] || converters[ "* " + current ];
+
+            // If there is no direct converter, search transitively
+            if (!conv ) {
+                conv2 = undefined;
+                for ( conv1 in converters ) {
+                    tmp = conv1.split( " " );
+                    if ( tmp[ 0 ] === prev || tmp[ 0 ] === "*" ) {
+                        conv2 = converters[ tmp[1] + " " + current ];
+                        if ( conv2 ) {
+                            conv1 = converters[ conv1 ];
+                            if ( conv1 === true ) {
+                                conv = conv2;
+                            } else if ( conv2 === true ) {
+                                conv = conv1;
                             }
+                            break;
+                        }
+                    }
+                }
+            }
+            // If we found no converter, dispatch an error
+            if (!( conv || conv2 ) ) {
+                // 未找到转换器时抛出错误
+                jQuery.error( "No conversion from " + conversion.replace(" "," to ") );
+            }
+            // If found converter is not an equivalence
+            if ( conv!== true ) {
+                // Convert with 1 or 2 converters accordingly
+                response = conv? conv( response ) : conv2( conv1(response) );
+                // 使用转换器进行数据转换
+            }
+        }
+    }
+    return response;
+}
 
-                            return this;
-                        },
 
-                        fadeTo: function( speed, to, easing, callback ) {
-                            return this.filter(":hidden").css("opacity", 0).show().end()
-                                .animate({opacity: to}, speed, easing, callback);
-                        },
 
-                        animate: function( prop, speed, easing, callback ) {
-                            var optall = jQuery.speed( speed, easing, callback );
 
-                            if ( jQuery.isEmptyObject( prop ) ) {
-                                return this.each( optall.complete, [ false ] );
-                            }
+// 创建一个变量存储 jQuery 的当前时间戳
+var jsc = jQuery.now(),
+    // 定义一个正则表达式，用于匹配特定的字符串模式
+    jsre = /(\=)\?(&|$)|\?\?/i;
 
-                            // Do not change referenced properties as per-property easing will be lost
-                            prop = jQuery.extend( {}, prop );
+// Default jsonp settings
+// 设置 jQuery 的 AJAX 默认配置
+jQuery.ajaxSetup({
+    // jsonp 请求的回调函数名称参数
+    jsonp: "callback",
+    jsonpCallback: function() {
+        // 生成一个唯一的 jsonp 回调函数名称，基于 jQuery 的 expando 属性和时间戳
+        return jQuery.expando + "_" + (jsc++);
+    }
+});
 
-                            function doAnimation() {
-                                // XXX 'this' does not always have a nodeName when running the
-                                // test suite
+// Detect, normalize options and install callbacks for jsonp requests
+// 为 jsonp 请求检测、规范化选项和安装回调函数
+jQuery.ajaxPrefilter("json jsonp", function(s, originalSettings, jqXHR) {
+    // 检查 s.data 是否为字符串且其 contentType 是否为 application/x-www-form-urlencoded 类型
+    var inspectData = (typeof s.data === "string") && /^application\/x\-www\-form\-urlencoded/.test(s.contentType);
+
+    if (s.dataTypes[0] === "jsonp" ||
+        s.jsonp!== false && (jsre.test(s.url) ||
+            inspectData && jsre.test(s.data))) {
+
+        var responseContainer,
+            // 确定 jsonpCallback 的值，根据 s.jsonpCallback 是否为函数调用相应的方法
+            jsonpCallback = s.jsonpCallback =
+                jQuery.isFunction(s.jsonpCallback)? s.jsonpCallback() : s.jsonpCallback,
+            // 存储之前的 window[jsonpCallback] 函数
+            previous = window[jsonpCallback],
+            url = s.url,
+            data = s.data,
+            // 用于替换的字符串模式
+            replace = "$1" + jsonpCallback + "$2";
+
+        if (s.jsonp!== false) {
+            // 替换 url 中的匹配部分
+            url = url.replace(jsre, replace);
+            if (s.url === url) {
+                if (inspectData) {
+                    // 替换 data 中的匹配部分
+                    data = data.replace(jsre, replace);
+                }
+                if (s.data === data) {
+                    // 如果 url 和 data 都没有变化，手动添加回调参数
+                    url += (/\?/.test(url)? "&" : "?") + s.jsonp + "=" + jsonpCallback;
+                }
+            }
+        }
 
-                                if ( optall.queue === false ) {
-                                    jQuery._mark( this );
-                                }
+        s.url = url;
+        s.data = data;
 
-                                var opt = jQuery.extend( {}, optall ),
-                                    isElement = this.nodeType === 1,
-                                    hidden = isElement && jQuery(this).is(":hidden"),
-                                    name, val, p, e, hooks, replace,
-                                    parts, start, end, unit,
-                                    method;
-
-                                // will store per property easing and be used to determine when an animation is complete
-                                opt.animatedProperties = {};
-
-                                // first pass over propertys to expand / normalize
-                                for ( p in prop ) {
-                                    name = jQuery.camelCase( p );
-                                    if ( p !== name ) {
-                                        prop[ name ] = prop[ p ];
-                                        delete prop[ p ];
-                                    }
+        // Install callback
+        // 在 window 对象上安装回调函数，将响应存储在 responseContainer 中
+        window[jsonpCallback] = function(response) {
+            responseContainer = [response];
+        };
 
-                                    if ( ( hooks = jQuery.cssHooks[ name ] ) && "expand" in hooks ) {
-                                        replace = hooks.expand( prop[ name ] );
-                                        delete prop[ name ];
+        // Clean-up function
+        jqXHR.always(function() {
+            // 将回调函数恢复到之前的值
+            window[jsonpCallback] = previous;
+            // 如果是函数且有响应，调用该回调函数
+            if (responseContainer && jQuery.isFunction(previous)) {
+                window[jsonpCallback](responseContainer[0]);
+            }
+        });
 
-                                        // not quite $.extend, this wont overwrite keys already present.
-                                        // also - reusing 'p' from above because we have the correct "name"
-                                        for ( p in replace ) {
-                                            if ( ! ( p in prop ) ) {
-                                                prop[ p ] = replace[ p ];
-                                            }
-                                        }
-                                    }
-                                }
+        // Use data converter to retrieve json after script execution
+        // 定义数据转换器，当脚本执行后尝试获取 json 数据
+        s.converters["script json"] = function() {
+            if (!responseContainer) {
+                // 如果没有调用回调函数则报错
+                jQuery.error(jsonpCallback + " was not called");
+            }
+            return responseContainer[0];
+        };
 
-                                for ( name in prop ) {
-                                    val = prop[ name ];
-                                    // easing resolution: per property > opt.specialEasing > opt.easing > 'swing' (default)
-                                    if ( jQuery.isArray( val ) ) {
-                                        opt.animatedProperties[ name ] = val[ 1 ];
-                                        val = prop[ name ] = val[ 0 ];
-                                    } else {
-                                        opt.animatedProperties[ name ] = opt.specialEasing && opt.specialEasing[ name ] || opt.easing || 'swing';
-                                    }
+        // force json dataType
+        // 强制将第一个数据类型设置为 json
+        s.dataTypes[0] = "json";
 
-                                    if ( val === "hide" && hidden || val === "show" && !hidden ) {
-                                        return opt.complete.call( this );
-                                    }
+        // Delegate to script
+        // 委托给 script 处理
+        return "script";
+    }
+});
 
-                                    if ( isElement && ( name === "height" || name === "width" ) ) {
-                                        // Make sure that nothing sneaks out
-                                        // Record all 3 overflow attributes because IE does not
-                                        // change the overflow attribute when overflowX and
-                                        // overflowY are set to the same value
-                                        opt.overflow = [ this.style.overflow, this.style.overflowX, this.style.overflowY ];
-
-                                        // Set display property to inline-block for height/width
-                                        // animations on inline elements that are having width/height animated
-                                        if ( jQuery.css( this, "display" ) === "inline" &&
-                                            jQuery.css( this, "float" ) === "none" ) {
-
-                                            // inline-level elements accept inline-block;
-                                            // block-level elements need to be inline with layout
-                                            if ( !jQuery.support.inlineBlockNeedsLayout || defaultDisplay( this.nodeName ) === "inline" ) {
-                                                this.style.display = "inline-block";
-
-                                            } else {
-                                                this.style.zoom = 1;
-                                            }
-                                        }
-                                    }
-                                }
 
-                                if ( opt.overflow != null ) {
-                                    this.style.overflow = "hidden";
-                                }
+// Install script dataType
+// 安装 script 数据类型的相关配置
+jQuery.ajaxSetup({
+    accepts: {
+        // 设置 script 类型的接受内容类型
+        script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
+    },
+    contents: {
+        // 定义 script 类型的内容匹配规则
+        script: /javascript|ecmascript/
+    },
+    converters: {
+        // 定义 text 到 script 的数据转换器，使用 jQuery.globalEval 执行脚本
+        "text script": function(text) {
+            jQuery.globalEval(text);
+            return text;
+        }
+    }
+});
 
-                                for ( p in prop ) {
-                                    e = new jQuery.fx( this, opt, p );
-                                    val = prop[ p ];
+// Handle cache's special case and global
+// 处理 script 类型的缓存特殊情况和全局设置
+jQuery.ajaxPrefilter("script", function(s) {
+    if (s.cache === undefined) {
+        // 如果缓存未定义，设置为 false
+        s.cache = false;
+    }
+    if (s.crossDomain) {
+        // 如果是跨域请求，设置请求类型为 GET 并关闭全局设置
+        s.type = "GET";
+        s.global = false;
+    }
+});
 
-                                    if ( rfxtypes.test( val ) ) {
+// Bind script tag hack transport
+// 绑定脚本标签的传输方式
+jQuery.ajaxTransport("script", function(s) {
+    // This transport only deals with cross domain requests
+    // 此传输仅处理跨域请求
+    if (s.crossDomain) {
+        var script,
+            // 获取 head 元素或文档元素
+            head = document.head || document.getElementsByTagName("head")[0] || document.documentElement;
 
-                                        // Tracks whether to show or hide based on private
-                                        // data attached to the element
-                                        method = jQuery._data( this, "toggle" + p ) || ( val === "toggle" ? hidden ? "show" : "hide" : 0 );
-                                        if ( method ) {
-                                            jQuery._data( this, "toggle" + p, method === "show" ? "hide" : "show" );
-                                            e[ method ]();
-                                        } else {
-                                            e[ val ]();
-                                        }
+        return {
+            send: function(_, callback) {
+                // 创建一个 script 元素
+                script = document.createElement("script");
+                // 设置 script 元素为异步
+                script.async = "async";
 
-                                    } else {
-                                        parts = rfxnum.exec( val );
-                                        start = e.cur();
+                if (s.scriptCharset) {
+                    // 设置 script 元素的字符集
+                    script.charset = s.scriptCharset;
+                }
 
-                                        if ( parts ) {
-                                            end = parseFloat( parts[2] );
-                                            unit = parts[3] || ( jQuery.cssNumber[ p ] ? "" : "px" );
+                script.src = s.url;
 
-                                            // We need to compute starting value
-                                            if ( unit !== "px" ) {
-                                                jQuery.style( this, p, (end || 1) + unit);
-                                                start = ( (end || 1) / e.cur() ) * start;
-                                                jQuery.style( this, p, start + unit);
-                                            }
+                // Attach handlers for all browsers
+                // 为 script 元素添加加载和状态改变的事件处理函数
+                script.onload = script.onreadystatechange = function(_, isAbort) {
+                    if (isAbort ||!script.readyState || /loaded|complete/.test(script.readyState)) {
+                        // Handle memory leak in IE
+                        // 处理 IE 中的内存泄漏问题
+                        script.onload = script.onreadystatechange = null;
 
-                                            // If a +=/-= token was provided, we're doing a relative animation
-                                            if ( parts[1] ) {
-                                                end = ( (parts[ 1 ] === "-=" ? -1 : 1) * end ) + start;
-                                            }
+                        // Remove the script
+                        // 移除 script 元素
+                        if (head && script.parentNode) {
+                            head.removeChild(script);
+                        }
 
-                                            e.custom( start, end, unit );
+                        // Dereference the script
+                        // 解除对 script 的引用
+                        script = undefined;
 
-                                        } else {
-                                            e.custom( start, val, "" );
-                                        }
-                                    }
-                                }
+                        // Callback if not abort
+                        // 如果没有中止，调用回调函数
+                        if (!isAbort) {
+                            callback(200, "success");
+                        }
+                    }
+                };
+                // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
+                // 使用 insertBefore 代替 appendChild 来避免 IE6 的一个 bug
+                // This arises when a base node is used (#2709 and #4378).
+                // 当使用 base 节点时会出现该问题（参考问题 #2709 和 #4378）
+                head.insertBefore(script, head.firstChild);
+            },
 
-                                // For JS strict compliance
-                                return true;
-                            }
+            abort: function() {
+                if (script) {
+                    // 中止请求
+                    script.onload(0, 1);
+                }
+            }
+        };
+    }
+});
 
-                            return optall.queue === false ?
-                                this.each( doAnimation ) :
-                                this.queue( optall.queue, doAnimation );
-                        },
 
-                        stop: function( type, clearQueue, gotoEnd ) {
-                            if ( typeof type !== "string" ) {
-                                gotoEnd = clearQueue;
-                                clearQueue = type;
-                                type = undefined;
-                            }
-                            if ( clearQueue && type !== false ) {
-                                this.queue( type || "fx", [] );
-                            }
 
-                            return this.each(function() {
-                                var index,
-                                    hadTimers = false,
-                                    timers = jQuery.timers,
-                                    data = jQuery._data( this );
+var // #5280: Internet Explorer will keep connections alive if we don't abort on unload
+    // 如果在卸载时不中止，IE 会保持连接处于活动状态
+    xhrOnUnloadAbort = window.ActiveXObject? function() {
+        // Abort all pending requests
+        // 中止所有挂起的请求
+        for ( var key in xhrCallbacks ) {
+            xhrCallbacks[ key ]( 0, 1 );
+        }
+    } : false,
+    xhrId = 0,
+    xhrCallbacks;
 
-                                // clear marker counters if we know they won't be
-                                if ( !gotoEnd ) {
-                                    jQuery._unmark( true, this );
-                                }
+// Functions to create xhrs
+// 创建 XMLHttpRequest 对象的函数
+function createStandardXHR() {
+    try {
+        // 尝试创建标准的 XMLHttpRequest 对象
+        return new window.XMLHttpRequest();
+    } catch( e ) {}
+}
 
-                                function stopQueue( elem, data, index ) {
-                                    var hooks = data[ index ];
-                                    jQuery.removeData( elem, index, true );
-                                    hooks.stop( gotoEnd );
-                                }
+function createActiveXHR() {
+    try {
+        // 尝试创建 ActiveXObject 类型的 XMLHttpRequest 对象
+        return new window.ActiveXObject( "Microsoft.XMLHTTP" );
+    } catch( e ) {}
+}
 
-                                if ( type == null ) {
-                                    for ( index in data ) {
-                                        if ( data[ index ] && data[ index ].stop && index.indexOf(".run") === index.length - 4 ) {
-                                            stopQueue( this, data, index );
-                                        }
-                                    }
-                                } else if ( data[ index = type + ".run" ] && data[ index ].stop ){
-                                    stopQueue( this, data, index );
-                                }
+// Create the request object
+// (This is still attached to ajaxSettings for backward compatibility)
+// 创建请求对象（为了向后兼容，仍然附加到 ajaxSettings）
+jQuery.ajaxSettings.xhr = window.ActiveXObject?
+    /* Microsoft failed to properly
+     * implement the XMLHttpRequest in IE7 (can't request local files),
+     * so we use the ActiveXObject when it is available
+     * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+     * we need a fallback.
+     */
+    function() {
+        // 在 IE 中，如果不是本地请求，优先使用标准的 XMLHttpRequest 对象，否则使用 ActiveXObject
+        return!this.isLocal && createStandardXHR() || createActiveXHR();
+    } :
+    // For all other browsers, use the standard XMLHttpRequest object
+    // 对于其他浏览器，使用标准的 XMLHttpRequest 对象
+    createStandardXHR;
 
-                                for ( index = timers.length; index--; ) {
-                                    if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
-                                        if ( gotoEnd ) {
+// Determine support properties
+// 确定支持的属性
+(function( xhr ) {
+    jQuery.extend( jQuery.support, {
+        // 检查是否支持 ajax
+        ajax:!!xhr,
+        // 检查是否支持跨域资源共享 (CORS)
+        cors:!!xhr && ( "withCredentials" in xhr )
+    });
+})( jQuery.ajaxSettings.xhr() );
 
-                                            // force the next step to be the last
-                                            timers[ index ]( true );
-                                        } else {
-                                            timers[ index ].saveState();
-                                        }
-                                        hadTimers = true;
-                                        timers.splice( index, 1 );
-                                    }
-                                }
+// Create transport if the browser can provide an xhr
+// 如果浏览器可以提供 xhr，则创建传输对象
+if ( jQuery.support.ajax ) {
 
-                                // start the next in the queue if the last step wasn't forced
-                                // timers currently will call their complete callbacks, which will dequeue
-                                // but only if they were gotoEnd
-                                if ( !( gotoEnd && hadTimers ) ) {
-                                    jQuery.dequeue( this, type );
-                                }
-                            });
-                        }
+    jQuery.ajaxTransport(function( s ) {
+        // Cross domain only allowed if supported through XMLHttpRequest
+        // 仅当通过 XMLHttpRequest 支持跨域时允许跨域请求
+        if (!s.crossDomain || jQuery.support.cors ) {
 
-                    });
+            var callback;
 
-// Animations created synchronously will run synchronously
-                    function createFxNow() {
-                        setTimeout( clearFxNow, 0 );
-                        return ( fxNow = jQuery.now() );
+            return {
+                send: function( headers, complete ) {
+
+                    // Get a new xhr
+                    // 获取一个新的 xhr 对象
+                    var xhr = s.xhr(),
+                        handle,
+                        i;
+
+                    // Open the socket
+                    // 打开请求连接
+                    // Passing null username, generates a login popup on Opera (#2865)
+                    // 在 Opera 中传递空用户名会生成登录弹窗（#2865）
+                    if ( s.username ) {
+                        xhr.open( s.type, s.url, s.async, s.username, s.password );
+                    } else {
+                        xhr.open( s.type, s.url, s.async );
                     }
 
-                    function clearFxNow() {
-                        fxNow = undefined;
+                    // Apply custom fields if provided
+                    // 如果提供了自定义字段，则应用它们
+                    if ( s.xhrFields ) {
+                        for ( i in s.xhrFields ) {
+                            xhr[ i ] = s.xhrFields[ i ];
+                        }
                     }
 
-// Generate parameters to create a standard animation
-                    function genFx( type, num ) {
-                        var obj = {};
-
-                        jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice( 0, num )), function() {
-                            obj[ this ] = type;
-                        });
-
-                        return obj;
+                    // Override mime type if needed
+                    // 如果需要，覆盖 MIME 类型
+                    if ( s.mimeType && xhr.overrideMimeType ) {
+                        xhr.overrideMimeType( s.mimeType );
                     }
 
-// Generate shortcuts for custom animations
-                    jQuery.each({
-                        slideDown: genFx( "show", 1 ),
-                        slideUp: genFx( "hide", 1 ),
-                        slideToggle: genFx( "toggle", 1 ),
-                        fadeIn: { opacity: "show" },
-                        fadeOut: { opacity: "hide" },
-                        fadeToggle: { opacity: "toggle" }
-                    }, function( name, props ) {
-                        jQuery.fn[ name ] = function( speed, easing, callback ) {
-                            return this.animate( props, speed, easing, callback );
-                        };
-                    });
-
-                    jQuery.extend({
-                        speed: function( speed, easing, fn ) {
-                            var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-                                complete: fn || !fn && easing ||
-                                    jQuery.isFunction( speed ) && speed,
-                                duration: speed,
-                                easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
-                            };
-
-                            opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
-                                opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
-
-                            // normalize opt.queue - true/undefined/null -> "fx"
-                            if ( opt.queue == null || opt.queue === true ) {
-                                opt.queue = "fx";
-                            }
-
-                            // Queueing
-                            opt.old = opt.complete;
-
-                            opt.complete = function( noUnmark ) {
-                                if ( jQuery.isFunction( opt.old ) ) {
-                                    opt.old.call( this );
-                                }
-
-                                if ( opt.queue ) {
-                                    jQuery.dequeue( this, opt.queue );
-                                } else if ( noUnmark !== false ) {
-                                    jQuery._unmark( this );
-                                }
-                            };
-
-                            return opt;
-                        },
+                    // X-Requested-With header
+                    // 对于跨域请求，由于预检条件比较复杂，所以不设置该请求头
+                    // 对于同域请求，如果未提供该请求头，则设置
+                    // (也可以在每次请求时设置或使用 ajaxSetup 设置)
+                    // For cross-domain requests, seeing as conditions for a preflight are
+                    // akin to a jigsaw puzzle, we simply never set it to be sure.
+                    // (it can always be set on a per-request basis or even using ajaxSetup)
+                    // For same-domain requests, won't change header if already provided.
+                    if (!s.crossDomain &&!headers["X-Requested-With"] ) {
+                        headers[ "X-Requested-With" ] = "XMLHttpRequest";
+                    }
 
-                        easing: {
-                            linear: function( p ) {
-                                return p;
-                            },
-                            swing: function( p ) {
-                                return ( -Math.cos( p*Math.PI ) / 2 ) + 0.5;
-                            }
-                        },
+                    // Need an extra try/catch for cross domain requests in Firefox 3
+                    // Firefox 3 中的跨域请求需要额外的 try/catch 处理
+                    try {
+                        for ( i in headers ) {
+                            xhr.setRequestHeader( i, headers[ i ] );
+                        }
+                    } catch( _ ) {}
+
+                    // Do send the request
+                    // 发送请求
+                    // 这可能会引发异常，实际上 jQuery.ajax 会处理该异常，所以这里没有 try/catch
+                    // This may raise an exception which is actually
+                    // handled in jQuery.ajax (so no try/catch here)
+                    xhr.send( ( s.hasContent && s.data ) || null );
+
+                    // Listener
+                    // 监听器
+                    callback = function( _, isAbort ) {
+
+                        var status,
+                            statusText,
+                            responseHeaders,
+                            responses,
+                            xml;
+
+                        // Firefox throws exceptions when accessing properties
+                        // of an xhr when a network error occured
+                        // Firefox 在发生网络错误时访问 xhr 属性会抛出异常
+                        // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
+                        try {
 
-                        timers: [],
+                            // Was never called and is aborted or complete
+                            // 如果未调用过且已中止或完成
+                            if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
 
-                        fx: function( elem, options, prop ) {
-                            this.options = options;
-                            this.elem = elem;
-                            this.prop = prop;
+                                // Only called once
+                                // 只调用一次
+                                callback = undefined;
 
-                            options.orig = options.orig || {};
-                        }
+                                // Do not keep as active anymore
+                                // 不再保持活动状态
+                                if ( handle ) {
+                                    xhr.onreadystatechange = jQuery.noop;
+                                    if ( xhrOnUnloadAbort ) {
+                                        delete xhrCallbacks[ handle ];
+                                    }
+                                }
 
-                    });
+                                // If it's an abort
+                                // 如果是中止操作
+                                if ( isAbort ) {
+                                    // Abort it manually if needed
+                                    // 如果需要，手动中止
+                                    if ( xhr.readyState!== 4 ) {
+                                        xhr.abort();
+                                    }
+                                } else {
+                                    status = xhr.status;
+                                    responseHeaders = xhr.getAllResponseHeaders();
+                                    responses = {};
+                                    xml = xhr.responseXML;
 
-                    jQuery.fx.prototype = {
-                        // Simple function for setting a style value
-                        update: function() {
-                            if ( this.options.step ) {
-                                this.options.step.call( this.elem, this.now, this );
-                            }
+                                    // Construct response list
+                                    // 构建响应列表
+                                    if ( xml && xml.documentElement /* #4958 */ ) {
+                                        responses.xml = xml;
+                                    }
 
-                            ( jQuery.fx.step[ this.prop ] || jQuery.fx.step._default )( this );
-                        },
+                                    // When requesting binary data, IE6-9 will throw an exception
+                                    // on any attempt to access responseText (#11426)
+                                    // 在请求二进制数据时，IE6-9 访问 responseText 会抛出异常（#11426）
+                                    try {
+                                        responses.text = xhr.responseText;
+                                    } catch( _ ) {
+                                    }
 
-                        // Get the current size
-                        cur: function() {
-                            if ( this.elem[ this.prop ] != null && (!this.elem.style || this.elem.style[ this.prop ] == null) ) {
-                                return this.elem[ this.prop ];
-                            }
+                                    // Firefox throws an exception when accessing
+                                    // statusText for faulty cross-domain requests
+                                    // Firefox 在访问有问题的跨域请求的 statusText 时会抛出异常
+                                    try {
+                                        statusText = xhr.statusText;
+                                    } catch( e ) {
+                                        // We normalize with Webkit giving an empty statusText
+                                        // 使用 Webkit 规范，将 statusText 设为空
+                                        statusText = "";
+                                    }
 
-                            var parsed,
-                                r = jQuery.css( this.elem, this.prop );
-                            // Empty strings, null, undefined and "auto" are converted to 0,
-                            // complex values such as "rotate(1rad)" are returned as is,
-                            // simple values such as "10px" are parsed to Float.
-                            return isNaN( parsed = parseFloat( r ) ) ? !r || r === "auto" ? 0 : r : parsed;
-                        },
-
-                        // Start an animation from one number to another
-                        custom: function( from, to, unit ) {
-                            var self = this,
-                                fx = jQuery.fx;
-
-                            this.startTime = fxNow || createFxNow();
-                            this.end = to;
-                            this.now = this.start = from;
-                            this.pos = this.state = 0;
-                            this.unit = unit || this.unit || ( jQuery.cssNumber[ this.prop ] ? "" : "px" );
-
-                            function t( gotoEnd ) {
-                                return self.step( gotoEnd );
-                            }
+                                    // Filter status for non standard behaviors
+                                    // 过滤非标准行为的状态
 
-                            t.queue = this.options.queue;
-                            t.elem = this.elem;
-                            t.saveState = function() {
-                                if ( jQuery._data( self.elem, "fxshow" + self.prop ) === undefined ) {
-                                    if ( self.options.hide ) {
-                                        jQuery._data( self.elem, "fxshow" + self.prop, self.start );
-                                    } else if ( self.options.show ) {
-                                        jQuery._data( self.elem, "fxshow" + self.prop, self.end );
+                                    // If the request is local and we have data: assume a success
+                                    // (success with no data won't get notified, that's the best we
+                                    // can do given current implementations)
+                                    // 如果请求是本地的且有数据：假设为成功
+                                    // （无数据的成功不会被通知，根据当前实现这是我们能做的最好的处理）
+                                    if (!status && s.isLocal &&!s.crossDomain ) {
+                                        status = responses.text? 200 : 404;
+                                        // IE - #1450: sometimes returns 1223 when it should be 204
+                                    } else if ( status === 1223 ) {
+                                        status = 204;
                                     }
                                 }
-                            };
-
-                            if ( t() && jQuery.timers.push(t) && !timerId ) {
-                                timerId = setInterval( fx.tick, fx.interval );
                             }
-                        },
+                        } catch( firefoxAccessException ) {
+                            if (!isAbort ) {
+                                // 调用 complete 并传递错误信息
+                                complete( -1, firefoxAccessException );
+                            }
+                        }
 
-                        // Simple 'show' function
-                        show: function() {
-                            var dataShow = jQuery._data( this.elem, "fxshow" + this.prop );
+                        // Call complete if needed
+                        // 如果需要，调用 complete 函数
+                        if ( responses ) {
+                            complete( status, statusText, responses, responseHeaders );
+                        }
+                    };
 
-                            // Remember where we started, so that we can go back to it later
-                            this.options.orig[ this.prop ] = dataShow || jQuery.style( this.elem, this.prop );
-                            this.options.show = true;
+                    // if we're in sync mode or it's in cache
+                    // and has been retrieved directly (IE6 & IE7)
+                    // we need to manually fire the callback
+                    // 如果是同步模式或在缓存中且直接获取（IE6 和 IE7），需要手动触发回调
+                    if (!s.async || xhr.readyState === 4 ) {
+                        callback();
+                    } else {
+                        handle = ++xhrId;
+                        if ( xhrOnUnloadAbort ) {
+                            // Create the active xhrs callbacks list if needed
+                            // 如有需要，创建活动的 xhrs 回调列表
+                            // and attach the unload handler
+                            // 并添加卸载处理程序
+                            if (!xhrCallbacks ) {
+                                xhrCallbacks = {};
+                                jQuery( window ).unload( xhrOnUnloadAbort );
+                            }
+                            // Add to list of active xhrs callbacks
+                            // 将回调添加到活动的 xhrs 回调列表
+                            xhrCallbacks[ handle ] = callback;
+                        }
+                        xhr.onreadystatechange = callback;
+                    }
+                },
 
-                            // Begin the animation
-                            // Make sure that we start at a small width/height to avoid any flash of content
-                            if ( dataShow !== undefined ) {
-                                // This show is picking up where a previous hide or show left off
-                                this.custom( this.cur(), dataShow );
-                            } else {
-                                this.custom( this.prop === "width" || this.prop === "height" ? 1 : 0, this.cur() );
-                            }
+                abort: function() {
+                    if ( callback ) {
+                        // 调用回调函数进行中止操作
+                        callback(0,1);
+                    }
+                }
+            };
+        }
+    });
+}
 
-                            // Start by showing the element
-                            jQuery( this.elem ).show();
-                        },
-
-                        // Simple 'hide' function
-                        hide: function() {
-                            // Remember where we started, so that we can go back to it later
-                            this.options.orig[ this.prop ] = jQuery._data( this.elem, "fxshow" + this.prop ) || jQuery.style( this.elem, this.prop );
-                            this.options.hide = true;
-
-                            // Begin the animation
-                            this.custom( this.cur(), 0 );
-                        },
-
-                        // Each step of an animation
-                        step: function( gotoEnd ) {
-                            var p, n, complete,
-                                t = fxNow || createFxNow(),
-                                done = true,
-                                elem = this.elem,
-                                options = this.options;
-
-                            if ( gotoEnd || t >= options.duration + this.startTime ) {
-                                this.now = this.end;
-                                this.pos = this.state = 1;
-                                this.update();
-
-                                options.animatedProperties[ this.prop ] = true;
-
-                                for ( p in options.animatedProperties ) {
-                                    if ( options.animatedProperties[ p ] !== true ) {
-                                        done = false;
-                                    }
-                                }
 
-                                if ( done ) {
-                                    // Reset the overflow
-                                    if ( options.overflow != null && !jQuery.support.shrinkWrapBlocks ) {
 
-                                        jQuery.each( [ "", "X", "Y" ], function( index, value ) {
-                                            elem.style[ "overflow" + value ] = options.overflow[ index ];
-                                        });
-                                    }
 
-                                    // Hide the element if the "hide" operation was done
-                                    if ( options.hide ) {
-                                        jQuery( elem ).hide();
-                                    }
+// 以下代码主要涉及 jQuery 的 AJAX 请求处理，根据不同的浏览器环境和请求情况进行相应的设置和操作
 
-                                    // Reset the properties, if the item has been hidden or shown
-                                    if ( options.hide || options.show ) {
-                                        for ( p in options.animatedProperties ) {
-                                            jQuery.style( elem, p, options.orig[ p ] );
-                                            jQuery.removeData( elem, "fxshow" + p, true );
-                                            // Toggle data is no longer needed
-                                            jQuery.removeData( elem, "toggle" + p, true );
-                                        }
-                                    }
+// 根据是否为 IE 浏览器定义 xhrOnUnloadAbort 函数，如果是 IE 浏览器，该函数会遍历 xhrCallbacks 对象，调用其中存储的回调函数并传入中止参数，否则为 false
+var // #5280: Internet Explorer will keep connections alive if we don't abort on unload
+    xhrOnUnloadAbort = window.ActiveXObject? function() {
+        // 开始遍历 xhrCallbacks 对象
+        for ( var key in xhrCallbacks ) {
+            // 调用存储在 xhrCallbacks 中的回调函数，并传入中止信号 (0, 1)，表示中止请求
+            xhrCallbacks[ key ]( 0, 1 );
+        }
+    } : false,
+    // 初始化 xhrId 为 0，用于为请求生成唯一标识
+    xhrId = 0,
+    // 用于存储 xhr 请求的回调函数的对象
+    xhrCallbacks;
 
-                                    // Execute the complete function
-                                    // in the event that the complete function throws an exception
-                                    // we must ensure it won't be called twice. #5684
 
-                                    complete = options.complete;
-                                    if ( complete ) {
+// 定义 createStandardXHR 函数，尝试创建标准的 XMLHttpRequest 对象
+function createStandardXHR() {
+    try {
+        // 创建一个新的 XMLHttpRequest 对象
+        return new window.XMLHttpRequest();
+    } catch( e ) {
+        // 如果创建失败，不执行任何操作
+    }
+}
 
-                                        options.complete = false;
-                                        complete.call( elem );
-                                    }
-                                }
 
-                                return false;
+// 定义 createActiveXHR 函数，尝试创建 ActiveXObject 类型的 XMLHttpRequest 对象，主要用于兼容旧版 IE 浏览器
+function createActiveXHR() {
+    try {
+        // 创建一个 Microsoft.XMLHTTP 类型的 ActiveXObject 对象，作为 XMLHttpRequest 对象的替代
+        return new window.ActiveXObject( "Microsoft.XMLHTTP" );
+    } catch( e ) {
+        // 如果创建失败，不执行任何操作
+    }
+}
+
+
+// 创建请求对象，根据浏览器是否支持 ActiveXObject 进行不同的创建方式，这里是为了向后兼容 jQuery 的 ajaxSettings
+jQuery.ajaxSettings.xhr = window.ActiveXObject?
+    /* Microsoft 在 IE7 中未能正确实现 XMLHttpRequest（无法请求本地文件），所以当 ActiveXObject 可用时使用它
+     * 另外，在 IE7/IE8 中 XMLHttpRequest 可能被禁用，所以需要一个后备方案
+     */
+    function() {
+        // 对于 IE 浏览器，如果不是本地请求，则尝试创建标准的 XMLHttpRequest 对象，若失败则创建 ActiveXObject 类型的 XMLHttpRequest 对象
+        return!this.isLocal && createStandardXHR() || createActiveXHR();
+    } :
+    // 对于其他浏览器，直接使用标准的 XMLHttpRequest 对象
+    createStandardXHR;
+
+
+// 确定浏览器的支持属性，通过立即执行函数，传入 jQuery.ajaxSettings.xhr() 的结果作为参数
+(function( xhr ) {
+    // 扩展 jQuery.support 对象，添加 ajax 和 cors 属性，以检查浏览器对 ajax 和跨域请求的支持情况
+    jQuery.extend( jQuery.support, {
+        // 检查是否支持 ajax，将 xhr 对象转换为布尔值
+        ajax:!!xhr,
+        // 检查是否支持 CORS，需要 xhr 存在且具有 withCredentials 属性
+        cors:!!xhr && ( "withCredentials" in xhr )
+    });
+})( jQuery.ajaxSettings.xhr() );
 
-                            } else {
-                                // classical easing cannot be used with an Infinity duration
-                                if ( options.duration == Infinity ) {
-                                    this.now = t;
-                                } else {
-                                    n = t - this.startTime;
-                                    this.state = n / options.duration;
 
-                                    // Perform the easing function, defaults to swing
-                                    this.pos = jQuery.easing[ options.animatedProperties[this.prop] ]( this.state, n, 0, 1, options.duration );
-                                    this.now = this.start + ( (this.end - this.start) * this.pos );
-                                }
-                                // Perform the next step of the animation
-                                this.update();
-                            }
+// 如果浏览器支持 ajax，创建传输对象
+if ( jQuery.support.ajax ) {
+    // 为 jQuery 注册一个 ajax 传输对象
+    jQuery.ajaxTransport(function( s ) {
+        // 仅当请求不是跨域或支持跨域请求（通过 XMLHttpRequest）时才继续
+        if (!s.crossDomain || jQuery.support.cors ) {
+            // 存储回调函数的变量
+            var callback;
 
-                            return true;
-                        }
-                    };
+            return {
+                send: function( headers, complete ) {
+                    // 获取一个新的 xhr 对象
+                    var xhr = s.xhr(),
+                        // 用于存储请求的处理句柄
+                        handle,
+                        // 用于遍历的变量
+                        i;
+
+
+                    // 打开 xhr 请求
+                    // 如果提供了用户名，使用用户名和密码打开请求，否则只使用 url 和异步标志打开请求
+                    // 在 Opera 中传递空用户名会生成登录弹窗（#2865）
+                    if ( s.username ) {
+                        xhr.open( s.type, s.url, s.async, s.username, s.password );
+                    } else {
+                        xhr.open( s.type, s.url, s.async );
+                    }
 
-                    jQuery.extend( jQuery.fx, {
-                        tick: function() {
-                            var timer,
-                                timers = jQuery.timers,
-                                i = 0;
-
-                            for ( ; i < timers.length; i++ ) {
-                                timer = timers[ i ];
-                                // Checks the timer has not already been removed
-                                if ( !timer() && timers[ i ] === timer ) {
-                                    timers.splice( i--, 1 );
-                                }
-                            }
 
-                            if ( !timers.length ) {
-                                jQuery.fx.stop();
-                            }
-                        },
-
-                        interval: 13,
-
-                        stop: function() {
-                            clearInterval( timerId );
-                            timerId = null;
-                        },
-
-                        speeds: {
-                            slow: 600,
-                            fast: 200,
-                            // Default speed
-                            _default: 400
-                        },
-
-                        step: {
-                            opacity: function( fx ) {
-                                jQuery.style( fx.elem, "opacity", fx.now );
-                            },
-
-                            _default: function( fx ) {
-                                if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {
-                                    fx.elem.style[ fx.prop ] = fx.now + fx.unit;
-                                } else {
-                                    fx.elem[ fx.prop ] = fx.now;
-                                }
-                            }
+                    // 如果存在自定义的 xhr 字段，将它们应用到 xhr 对象上
+                    if ( s.xhrFields ) {
+                        for ( i in s.xhrFields ) {
+                            xhr[ i ] = s.xhrFields[ i ];
                         }
-                    });
+                    }
 
-// Ensure props that can't be negative don't go there on undershoot easing
-                    jQuery.each( fxAttrs.concat.apply( [], fxAttrs ), function( i, prop ) {
-                        // exclude marginTop, marginLeft, marginBottom and marginRight from this list
-                        if ( prop.indexOf( "margin" ) ) {
-                            jQuery.fx.step[ prop ] = function( fx ) {
-                                jQuery.style( fx.elem, prop, Math.max(0, fx.now) + fx.unit );
-                            };
-                        }
-                    });
 
-                    if ( jQuery.expr && jQuery.expr.filters ) {
-                        jQuery.expr.filters.animated = function( elem ) {
-                            return jQuery.grep(jQuery.timers, function( fn ) {
-                                return elem === fn.elem;
-                            }).length;
-                        };
+                    // 如果需要，使用 xhr.overrideMimeType 方法覆盖 MIME 类型
+                    if ( s.mimeType && xhr.overrideMimeType ) {
+                        xhr.overrideMimeType( s.mimeType );
                     }
 
-// Try to restore the default display value of an element
-                    function defaultDisplay( nodeName ) {
 
-                        if ( !elemdisplay[ nodeName ] ) {
+                    // X-Requested-With 头处理
+                    // 对于跨域请求，由于预检条件复杂，不设置该请求头，对于同域请求，如果该请求头未提供，则设置为 XMLHttpRequest
+                    // 也可以在每次请求时设置或使用 ajaxSetup 设置
+                    if (!s.crossDomain &&!headers["X-Requested-With"] ) {
+                        headers[ "X-Requested-With" ] = "XMLHttpRequest";
+                    }
 
-                            var body = document.body,
-                                elem = jQuery( "<" + nodeName + ">" ).appendTo( body ),
-                                display = elem.css( "display" );
-                            elem.remove();
 
-                            // If the simple way fails,
-                            // get element's real default display by attaching it to a temp iframe
-                            if ( display === "none" || display === "" ) {
-                                // No iframe to use yet, so create it
-                                if ( !iframe ) {
-                                    iframe = document.createElement( "iframe" );
-                                    iframe.frameBorder = iframe.width = iframe.height = 0;
-                                }
+                    // Firefox 3 中的跨域请求需要额外的 try/catch 处理
+                    try {
+                        // 遍历 headers 并设置请求头
+                        for ( i in headers ) {
+                            xhr.setRequestHeader( i, headers[ i ] );
+                        }
+                    } catch( _ ) {
+                        // 异常时不做特殊处理
+                    }
 
-                                body.appendChild( iframe );
 
-                                // Create a cacheable copy of the iframe document on first call.
-                                // IE and Opera will allow us to reuse the iframeDoc without re-writing the fake HTML
-                                // document to it; WebKit & Firefox won't allow reusing the iframe document.
-                                if ( !iframeDoc || !iframe.createElement ) {
-                                    iframeDoc = ( iframe.contentWindow || iframe.contentDocument ).document;
-                                    iframeDoc.write( ( jQuery.support.boxModel ? "<!doctype html>" : "" ) + "<html><body>" );
-                                    iframeDoc.close();
-                                }
+                    // 发送请求，根据是否有内容和数据决定发送的数据，没有数据时发送 null
+                    xhr.send( ( s.hasContent && s.data ) || null );
 
-                                elem = iframeDoc.createElement( nodeName );
 
-                                iframeDoc.body.appendChild( elem );
+                    // 定义请求的回调函数
+                    callback = function( _, isAbort ) {
+                        var status,
+                            statusText,
+                            responseHeaders,
+                            responses,
+                            xml;
 
-                                display = jQuery.css( elem, "display" );
-                                body.removeChild( iframe );
-                            }
 
-                            // Store the correct default display
-                            elemdisplay[ nodeName ] = display;
-                        }
+                        // Firefox 在发生网络错误时访问 xhr 属性会抛出异常，参考 http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
+                        try {
+                            // 如果回调函数存在且请求已中止或完成（readyState 为 4）
+                            if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
+                                // 确保回调函数只被调用一次
+                                callback = undefined;
 
-                        return elemdisplay[ nodeName ];
-                    }
 
+                                // 如果存在句柄，移除 onreadystatechange 事件监听器，并在需要时从 xhrCallbacks 中删除该句柄
+                                if ( handle ) {
+                                    xhr.onreadystatechange = jQuery.noop;
+                                    if ( xhrOnUnloadAbort ) {
+                                        delete xhrCallbacks[ handle ];
+                                    }
+                                }
 
 
+                                // 如果是中止操作
+                                if ( isAbort ) {
+                                    // 如果请求尚未完成（readyState 不为 4），手动中止请求
+                                    if ( xhr.readyState!== 4 ) {
+                                        xhr.abort();
+                                    }
+                                } else {
+                                    // 获取请求的状态码
+                                    status = xhr.status;
+                                    // 获取响应的所有头信息
+                                    responseHeaders = xhr.getAllResponseHeaders();
+                                    // 存储响应信息的对象
+                                    responses = {};
+                                    // 获取响应的 XML 数据
+                                    xml = xhr.responseXML;
 
-                    var getOffset,
-                        rtable = /^t(?:able|d|h)$/i,
-                        rroot = /^(?:body|html)$/i;
 
-                    if ( "getBoundingClientRect" in document.documentElement ) {
-                        getOffset = function( elem, doc, docElem, box ) {
-                            try {
-                                box = elem.getBoundingClientRect();
-                            } catch(e) {}
+                                    // 如果响应的 XML 数据存在且有 documentElement，将其存储在 responses.xml 中（#4958）
+                                    if ( xml && xml.documentElement ) {
+                                        responses.xml = xml;
+                                    }
 
-                            // Make sure we're not dealing with a disconnected DOM node
-                            if ( !box || !jQuery.contains( docElem, elem ) ) {
-                                return box ? { top: box.top, left: box.left } : { top: 0, left: 0 };
-                            }
 
-                            var body = doc.body,
-                                win = getWindow( doc ),
-                                clientTop  = docElem.clientTop  || body.clientTop  || 0,
-                                clientLeft = docElem.clientLeft || body.clientLeft || 0,
-                                scrollTop  = win.pageYOffset || jQuery.support.boxModel && docElem.scrollTop  || body.scrollTop,
-                                scrollLeft = win.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft,
-                                top  = box.top  + scrollTop  - clientTop,
-                                left = box.left + scrollLeft - clientLeft;
+                                    // 在请求二进制数据时，IE6-9 访问 responseText 会抛出异常（#11426）
+                                    try {
+                                        responses.text = xhr.responseText;
+                                    } catch( _ ) {
+                                    }
 
-                            return { top: top, left: left };
-                        };
 
-                    } else {
-                        getOffset = function( elem, doc, docElem ) {
-                            var computedStyle,
-                                offsetParent = elem.offsetParent,
-                                prevOffsetParent = elem,
-                                body = doc.body,
-                                defaultView = doc.defaultView,
-                                prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
-                                top = elem.offsetTop,
-                                left = elem.offsetLeft;
-
-                            while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
-                                if ( jQuery.support.fixedPosition && prevComputedStyle.position === "fixed" ) {
-                                    break;
-                                }
+                                    // Firefox 在访问有问题的跨域请求的 statusText 时会抛出异常
+                                    try {
+                                        statusText = xhr.statusText;
+                                    } catch( e ) {
+                                        // 当出现异常时，使用 Webkit 规范将 statusText 设为空
+                                        statusText = "";
+                                    }
 
-                                computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
-                                top  -= elem.scrollTop;
-                                left -= elem.scrollLeft;
 
-                                if ( elem === offsetParent ) {
-                                    top  += elem.offsetTop;
-                                    left += elem.offsetLeft;
+                                    // 过滤非标准行为的状态
 
-                                    if ( jQuery.support.doesNotAddBorder && !(jQuery.support.doesAddBorderForTableAndCells && rtable.test(elem.nodeName)) ) {
-                                        top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
-                                        left += parseFloat( computedStyle.borderLeftWidth ) || 0;
-                                    }
 
-                                    prevOffsetParent = offsetParent;
-                                    offsetParent = elem.offsetParent;
+                                    // 如果请求是本地的且有数据，假设请求成功；无数据的成功不会被通知，这是根据当前实现的最佳处理方式
+                                    if (!status && s.isLocal &&!s.crossDomain ) {
+                                        status = responses.text? 200 : 404;
+                                        // IE - #1450: 有时会返回 1223 而不是 204
+                                    } else if ( status === 1223 ) {
+                                        status = 204;
+                                    }
                                 }
+                            }
+                        } catch( firefoxAccessException ) {
+                            // 如果不是中止操作，调用 complete 函数并传递错误信息
+                            if (!isAbort ) {
+                                complete( -1, firefoxAccessException );
+                            }
+                        }
 
-                                if ( jQuery.support.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {
-                                    top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
-                                    left += parseFloat( computedStyle.borderLeftWidth ) || 0;
-                                }
 
-                                prevComputedStyle = computedStyle;
-                            }
+                        // 如果有响应信息，调用 complete 函数传递状态、状态文本、响应和响应头信息
+                        if ( responses ) {
+                            complete( status, statusText, responses, responseHeaders );
+                        }
+                    };
 
-                            if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" ) {
-                                top  += body.offsetTop;
-                                left += body.offsetLeft;
-                            }
 
-                            if ( jQuery.support.fixedPosition && prevComputedStyle.position === "fixed" ) {
-                                top  += Math.max( docElem.scrollTop, body.scrollTop );
-                                left += Math.max( docElem.scrollLeft, body.scrollLeft );
+                    // 如果是同步模式或请求已在缓存中且直接获取（IE6 & IE7），手动触发回调
+                    if (!s.async || xhr.readyState === 4 ) {
+                        callback();
+                    } else {
+                        // 生成新的请求句柄
+                        handle = ++xhrId;
+                        if ( xhrOnUnloadAbort ) {
+                            // 如果 xhrCallbacks 不存在，创建该对象，并为 window 绑定 unload 事件，在卸载时调用 xhrOnUnloadAbort 函数
+                            if (!xhrCallbacks ) {
+                                xhrCallbacks = {};
+                                jQuery( window ).unload( xhrOnUnloadAbort );
                             }
+                            // 将回调添加到 xhrCallbacks 中
+                            xhrCallbacks[ handle ] = callback;
+                        }
+                        // 为 xhr 对象添加 onreadystatechange 事件监听器
+                        xhr.onreadystatechange = callback;
+                    }
+                },
+
 
-                            return { top: top, left: left };
-                        };
+                abort: function() {
+                    // 调用回调函数进行中止操作
+                    if ( callback ) {
+                        callback(0,1);
                     }
+                }
+            };
+        }
+    });
+}
+
+if ( opt.overflow!= null ) {
+    // 如果 opt 的 overflow 属性不为空，将元素的 overflow 样式设置为 hidden
+    this.style.overflow = "hidden";
+}
+
+for ( p in prop ) {
+    // 遍历 prop 对象的属性
+    e = new jQuery.fx( this, opt, p );
+    val = prop[ p ];
+
+    if ( rfxtypes.test( val ) ) {
+        // 检查 val 是否符合某种效果类型的测试
+        // Tracks whether to show or hide based on private
+        // data attached to the element
+        // 根据元素上的私有数据来确定是显示还是隐藏
+        method = jQuery._data( this, "toggle" + p ) || ( val === "toggle"? hidden? "show" : "hide" : 0 );
+        if ( method ) {
+            // 如果 method 存在，将 toggle 属性的数据更新为相反的操作
+            jQuery._data( this, "toggle" + p, method === "show"? "hide" : "show" );
+            // 调用相应的方法（show 或 hide）
+            e[ method ]();
+        } else {
+            // 调用元素的 val 方法
+            e[ val ]();
+        }
+    } else {
+        parts = rfxnum.exec( val );
+        start = e.cur();
+
+        if ( parts ) {
+            // 解析 val 得到结束值
+            end = parseFloat( parts[2] );
+            unit = parts[3] || ( jQuery.cssNumber[ p ]? "" : "px" );
+
+            // We need to compute starting value
+            // 我们需要计算起始值
+            if ( unit!== "px" ) {
+                // 如果单位不是 px，将元素的样式设置为结束值加单位
+                jQuery.style( this, p, (end || 1) + unit);
+                // 计算起始值
+                start = ( (end || 1) / e.cur() ) * start;
+                // 将元素的样式设置为起始值加单位
+                jQuery.style( this, p, start + unit);
+            }
+
+            // If a +=/-= token was provided, we're doing a relative animation
+            // 如果提供了 += 或 -= 符号，进行相对动画
+            if ( parts[1] ) {
+                end = ( (parts[ 1 ] === "-="? -1 : 1) * end ) + start;
+            }
+
+            // 执行自定义动画
+            e.custom( start, end, unit );
+        } else {
+            // 执行自定义动画，使用起始值和 val 作为结束值
+            e.custom( start, val, "" );
+        }
+    }
+}
+
+// For JS strict compliance
+// 为了符合 JavaScript 严格模式
+return true;
+}
+
+return optall.queue === false?
+    // 如果队列选项为 false，对每个元素执行 doAnimation 函数
+    this.each( doAnimation ) :
+    // 否则将 doAnimation 函数添加到队列中
+    this.queue( optall.queue, doAnimation );
+},
+
+stop: function( type, clearQueue, gotoEnd ) {
+    if ( typeof type!== "string" ) {
+        // 调整参数，如果 type 不是字符串
+        gotoEnd = clearQueue;
+        clearQueue = type;
+        type = undefined;
+    }
+    if ( clearQueue && type!== false ) {
+        // 如果 clearQueue 为真且 type 不为 false，将相应队列清空
+        this.queue( type || "fx", [] );
+    }
 
-                    jQuery.fn.offset = function( options ) {
-                        if ( arguments.length ) {
-                            return options === undefined ?
-                                this :
-                                this.each(function( i ) {
-                                    jQuery.offset.setOffset( this, options, i );
-                                });
-                        }
+    return this.each(function() {
+        var index,
+            hadTimers = false,
+            timers = jQuery.timers,
+            data = jQuery._data( this );
 
-                        var elem = this[0],
-                            doc = elem && elem.ownerDocument;
+        // clear marker counters if we know they won't be
+        // 如果不跳转到结尾，清除标记
+        if (!gotoEnd ) {
+            jQuery._unmark( true, this );
+        }
 
-                        if ( !doc ) {
-                            return null;
-                        }
+        function stopQueue( elem, data, index ) {
+            // 从元素中移除相应数据并停止动画
+            jQuery.removeData( elem, index, true );
+            data[ index ].stop( gotoEnd );
+        }
 
-                        if ( elem === doc.body ) {
-                            return jQuery.offset.bodyOffset( elem );
-                        }
+        if ( type == null ) {
+            for ( index in data ) {
+                if ( data[ index ] && data[ index ].stop && index.indexOf(".run") === index.length - 4 ) {
+                    stopQueue( this, data, index );
+                }
+            }
+        } else if ( data[ index = type + ".run" ] && data[ index ].stop ){
+            stopQueue( this, data, index );
+        }
 
-                        return getOffset( elem, doc, doc.documentElement );
-                    };
+        for ( index = timers.length; index--; ) {
+            if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
+                if ( gotoEnd ) {
+                    // force the next step to be the last
+                    // 强制下一个步骤为最后一个
+                    timers[ index ]( true );
+                } else {
+                    // 保存状态
+                    timers[ index ].saveState();
+                }
+                hadTimers = true;
+                // 从定时器数组中移除
+                timers.splice( index, 1 );
+            }
+        }
 
-                    jQuery.offset = {
+        // start the next in the queue if the last step wasn't forced
+        // 如果最后一步不是强制的，开始队列中的下一个元素
+        // timers currently will call their complete callbacks, which will dequeue
+        // but only if they were gotoEnd
+        if (!( gotoEnd && hadTimers ) ) {
+            jQuery.dequeue( this, type );
+        }
+    });
+}
 
-                        bodyOffset: function( body ) {
-                            var top = body.offsetTop,
-                                left = body.offsetLeft;
+});
 
-                            if ( jQuery.support.doesNotIncludeMarginInBodyOffset ) {
-                                top  += parseFloat( jQuery.css(body, "marginTop") ) || 0;
-                                left += parseFloat( jQuery.css(body, "marginLeft") ) || 0;
-                            }
+// Animations created synchronously will run synchronously
+// 同步创建的动画将同步运行
+function createFxNow() {
+    // 设置一个延迟为 0 的定时器，用于清除 fxNow
+    setTimeout( clearFxNow, 0 );
+    return ( fxNow = jQuery.now() );
+}
+
+function clearFxNow() {
+    // 清除 fxNow
+    fxNow = undefined;
+}
 
-                            return { top: top, left: left };
-                        },
+// Generate parameters to create a standard animation
+// 生成创建标准动画的参数
+function genFx( type, num ) {
+    var obj = {};
 
-                        setOffset: function( elem, options, i ) {
-                            var position = jQuery.css( elem, "position" );
+    jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice( 0, num )), function() {
+        // 为生成的对象添加相应属性
+        obj[ this ] = type;
+    });
 
-                            // set position first, in-case top/left are set even on static elem
-                            if ( position === "static" ) {
-                                elem.style.position = "relative";
-                            }
+    return obj;
+}
 
-                            var curElem = jQuery( elem ),
-                                curOffset = curElem.offset(),
-                                curCSSTop = jQuery.css( elem, "top" ),
-                                curCSSLeft = jQuery.css( elem, "left" ),
-                                calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
-                                props = {}, curPosition = {}, curTop, curLeft;
-
-                            // need to be able to calculate position if either top or left is auto and position is either absolute or fixed
-                            if ( calculatePosition ) {
-                                curPosition = curElem.position();
-                                curTop = curPosition.top;
-                                curLeft = curPosition.left;
-                            } else {
-                                curTop = parseFloat( curCSSTop ) || 0;
-                                curLeft = parseFloat( curCSSLeft ) || 0;
-                            }
+// Generate shortcuts for custom animations
+// 为自定义动画生成快捷方式
+jQuery.each({
+    slideDown: genFx( "show", 1 ),
+    slideUp: genFx( "hide", 1 ),
+    slideToggle: genFx( "toggle", 1 ),
+    fadeIn: { opacity: "show" },
+    fadeOut: { opacity: "hide" },
+    fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+    jQuery.fn[ name ] = function( speed, easing, callback ) {
+        // 为 jQuery 元素添加相应的动画方法
+        return this.animate( props, speed, easing, callback );
+    };
+});
+
+jQuery.extend({
+    speed: function( speed, easing, fn ) {
+        var opt = speed && typeof speed === "object"? jQuery.extend( {}, speed ) : {
+            // 解析速度选项
+            complete: fn ||!fn && easing ||
+                jQuery.isFunction( speed ) && speed,
+            duration: speed,
+            easing: fn && easing || easing &&!jQuery.isFunction( easing ) && easing
+        };
 
-                            if ( jQuery.isFunction( options ) ) {
-                                options = options.call( elem, i, curOffset );
-                            }
+        opt.duration = jQuery.fx.off? 0 : typeof opt.duration === "number"? opt.duration :
+            // 获取持续时间
+            opt.duration in jQuery.fx.speeds? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
 
-                            if ( options.top != null ) {
-                                props.top = ( options.top - curOffset.top ) + curTop;
-                            }
-                            if ( options.left != null ) {
-                                props.left = ( options.left - curOffset.left ) + curLeft;
-                            }
+        // normalize opt.queue - true/undefined/null -> "fx"
+        // 规范化队列选项
+        if ( opt.queue == null || opt.queue === true ) {
+            opt.queue = "fx";
+        }
 
-                            if ( "using" in options ) {
-                                options.using.call( elem, props );
-                            } else {
-                                curElem.css( props );
-                            }
-                        }
-                    };
+        // Queueing
+        // 处理队列
+        opt.old = opt.complete;
+
+        opt.complete = function( noUnmark ) {
+            if ( jQuery.isFunction( opt.old ) ) {
+                // 调用旧的完成函数
+                opt.old.call( this );
+            }
 
+            if ( opt.queue ) {
+                // 从队列中移除元素
+                jQuery.dequeue( this, opt.queue );
+            } else if ( noUnmark!== false ) {
+                // 取消标记
+                jQuery._unmark( this );
+            }
+        };
 
-                    jQuery.fn.extend({
+        return opt;
+    },
 
-                        position: function() {
-                            if ( !this[0] ) {
-                                return null;
-                            }
+    easing: {
+        // 线性缓动函数
+        linear: function( p ) {
+            return p;
+        },
+        // 摆动缓动函数
+        swing: function( p ) {
+            return ( -Math.cos( p*Math.PI ) / 2 ) + 0.5;
+        }
+    },
 
-                            var elem = this[0],
+    timers: [],
 
-                                // Get *real* offsetParent
-                                offsetParent = this.offsetParent(),
+    fx: function( elem, options, prop ) {
+        this.options = options;
+        this.elem = elem;
+        this.prop = prop;
 
-                                // Get correct offsets
-                                offset       = this.offset(),
-                                parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
+        options.orig = options.orig || {};
+    }
 
-                            // Subtract element margins
-                            // note: when an element has margin: auto the offsetLeft and marginLeft
-                            // are the same in Safari causing offset.left to incorrectly be 0
-                            offset.top  -= parseFloat( jQuery.css(elem, "marginTop") ) || 0;
-                            offset.left -= parseFloat( jQuery.css(elem, "marginLeft") ) || 0;
+});
 
-                            // Add offsetParent borders
-                            parentOffset.top  += parseFloat( jQuery.css(offsetParent[0], "borderTopWidth") ) || 0;
-                            parentOffset.left += parseFloat( jQuery.css(offsetParent[0], "borderLeftWidth") ) || 0;
+jQuery.fx.prototype = {
+    // Simple function for setting a style value
+    // 用于设置样式值的简单函数
+    update: function() {
+        if ( this.options.step ) {
+            // 调用步骤函数
+            this.options.step.call( this.elem, this.now, this );
+        }
 
-                            // Subtract the two offsets
-                            return {
-                                top:  offset.top  - parentOffset.top,
-                                left: offset.left - parentOffset.left
-                            };
-                        },
+        // 调用相应的步骤函数或默认步骤函数
+        ( jQuery.fx.step[ this.prop ] || jQuery.fx.step._default )( this );
+    },
 
-                        offsetParent: function() {
-                            return this.map(function() {
-                                var offsetParent = this.offsetParent || document.body;
-                                while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
-                                    offsetParent = offsetParent.offsetParent;
-                                }
-                                return offsetParent;
-                            });
-                        }
-                    });
+    // Get the current size
+    // 获取当前尺寸
+    cur: function() {
+        if ( this.elem[ this.prop ]!= null && (!this.elem.style || this.elem.style[ this.prop ] == null) ) {
+            return this.elem[ this.prop ];
+        }
 
+        var parsed,
+            r = jQuery.css( this.elem, this.prop );
+        // Empty strings, null, undefined and "auto" are converted to 0,
+        // complex values such as "rotate(1rad)" are returned as is,
+        // simple values such as "10px" are parsed to Float.
+        // 空字符串、null、undefined 和 "auto" 转换为 0，复杂值如 "rotate(1rad)" 原样返回，简单值如 "10px" 解析为浮点数
+        return isNaN( parsed = parseFloat( r ) )?!r || r === "auto"? 0 : r : parsed;
+    },
+
+    // Start an animation from one number to another
+    // 从一个数字开始动画到另一个数字
+    custom: function( from, to, unit ) {
+        var self = this,
+            fx = jQuery.fx;
+
+        this.startTime = fxNow || createFxNow();
+        this.end = to;
+        this.now = this.start = from;
+        this.pos = this.state = 0;
+        this.unit = unit || this.unit || ( jQuery.cssNumber[ this.prop ]? "" : "px" );
+
+        function t( gotoEnd ) {
+            return self.step( gotoEnd );
+        }
 
-// Create scrollLeft and scrollTop methods
-                    jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
-                        var top = /Y/.test( prop );
-
-                        jQuery.fn[ method ] = function( val ) {
-                            return jQuery.access( this, function( elem, method, val ) {
-                                var win = getWindow( elem );
-
-                                if ( val === undefined ) {
-                                    return win ? (prop in win) ? win[ prop ] :
-                                            jQuery.support.boxModel && win.document.documentElement[ method ] ||
-                                            win.document.body[ method ] :
-                                        elem[ method ];
-                                }
+        t.queue = this.options.queue;
+        t.elem = this.elem;
+        t.saveState = function() {
+            if ( jQuery._data( self.elem, "fxshow" + self.prop ) === undefined ) {
+                if ( self.options.hide ) {
+                    jQuery._data( self.elem, "fxshow" + self.prop, self.start );
+                } else if ( self.options.show ) {
+                    jQuery._data( self.elem, "fxshow" + self.prop, self.end );
+                }
+            }
+        };
 
-                                if ( win ) {
-                                    win.scrollTo(
-                                        !top ? val : jQuery( win ).scrollLeft(),
-                                        top ? val : jQuery( win ).scrollTop()
-                                    );
+        if ( t() && jQuery.timers.push(t) &&!timerId ) {
+            timerId = setInterval( fx.tick, fx.interval );
+        }
+    },
+
+    // Simple 'show' function
+    // 简单的显示函数
+    show: function() {
+        var dataShow = jQuery._data( this.elem, "fxshow" + this.prop );
+
+        // Remember where we started, so that we can go back to it later
+        // 记住开始的位置，以便之后返回
+        this.options.orig[ this.prop ] = dataShow || jQuery.style( this.elem, this.prop );
+        this.options.show = true;
+
+        // Begin the animation
+        // 开始动画
+        // Make sure that we start at a small width/height to avoid any flash of content
+        // 确保从较小的宽度/高度开始，以避免内容闪烁
+        if ( dataShow!== undefined ) {
+            // This show is picking up where a previous hide or show left off
+            // 这个显示操作从上一次隐藏或显示的位置继续
+            this.custom( this.cur(), dataShow );
+        } else {
+            this.custom( this.prop === "width" || this.prop === "height"? 1 : 0, this.cur() );
+        }
 
-                                } else {
-                                    elem[ method ] = val;
-                                }
-                            }, method, val, arguments.length, null );
-                        };
+        // Start by showing the element
+        // 首先显示元素
+        jQuery( this.elem ).show();
+    },
+
+    // Simple 'hide' function
+    // 简单的隐藏函数
+    hide: function() {
+        // Remember where we started, so that we can go back to it.
+        // 记住开始的位置，以便之后返回
+        this.options.orig[ this.prop ] = jQuery._data( this.elem, "fxshow" + this.prop ) || jQuery.style( this.elem, this.prop );
+        this.options.hide = true;
+
+        // Begin the animation
+        // 开始动画
+        this.custom( this.cur(), 0 );
+    },
+
+    // Each step of an animation
+    // 动画的每一步
+    step: function( gotoEnd ) {
+        var p, n, complete,
+            t = fxNow || createFxNow(),
+            done = true,
+            elem = this.elem,
+            options = this.options;
+
+        if ( gotoEnd || t >= options.duration + this.startTime ) {
+            this.now = this.end;
+            this.pos = this.state = 1;
+            this.update();
+
+            options.animatedProperties[ this.prop ] = true;
+
+            for ( p in options.animatedProperties ) {
+                if ( options.animatedProperties[ p ]!== true ) {
+                    done = false;
+                }
+            }
+
+            if ( done ) {
+                // Reset the overflow
+                // 重置 overflow
+                if ( options.overflow!= null &&!jQuery.support.shrinkWrapBlocks ) {
+
+                    jQuery.each( [ "", "X", "Y" ], function( index, value ) {
+                        elem.style[ "overflow" + value ] = options.overflow[ index ];
                     });
+                }
 
-                    function getWindow( elem ) {
-                        return jQuery.isWindow( elem ) ?
-                            elem :
-                            elem.nodeType === 9 ?
-                                elem.defaultView || elem.parentWindow :
-                                false;
-                    }
-
+                // Hide the element if the "hide" operation was done
+                // 如果是执行了隐藏操作，隐藏元素
+                if ( options.hide ) {
+                    jQuery( elem ).hide();
+                }
 
+                // Reset the properties, if the item has been hidden or shown
+                // 如果元素已被隐藏或显示，重置属性
+                if ( options.hide || options.show ) {
+                    for ( p in options.animatedProperties ) {
+                        jQuery.style( elem, p, options.orig[ p ] );
+                        jQuery.removeData( elem, "fxshow" + p, true );
+                        // Toggle data is no longer needed
+                        jQuery.removeData( elem, "toggle" + p, true );
+                    }
+                }
+            }
 
+            // Execute the complete function
+            // in the event that the complete function throws an exception
+            // we must ensure it won't be called twice. #5684
 
-// Create width, height, innerHeight, innerWidth, outerHeight and outerWidth methods
-                    jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-                        var clientProp = "client" + name,
-                            scrollProp = "scroll" + name,
-                            offsetProp = "offset" + name;
-
-                        // innerHeight and innerWidth
-                        jQuery.fn[ "inner" + name ] = function() {
-                            var elem = this[0];
-                            return elem ?
-                                elem.style ?
-                                    parseFloat( jQuery.css( elem, type, "padding" ) ) :
-                                    this[ type ]() :
-                                null;
-                        };
-
-                        // outerHeight and outerWidth
-                        jQuery.fn[ "outer" + name ] = function( margin ) {
-                            var elem = this[0];
-                            return elem ?
-                                elem.style ?
-                                    parseFloat( jQuery.css( elem, type, margin ? "margin" : "border" ) ) :
-                                    this[ type ]() :
-                                null;
-                        };
-
-                        jQuery.fn[ type ] = function( value ) {
-                            return jQuery.access( this, function( elem, type, value ) {
-                                var doc, docElemProp, orig, ret;
-
-                                if ( jQuery.isWindow( elem ) ) {
-                                    // 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat
-                                    doc = elem.document;
-                                    docElemProp = doc.documentElement[ clientProp ];
-                                    return jQuery.support.boxModel && docElemProp ||
-                                        doc.body && doc.body[ clientProp ] || docElemProp;
-                                }
+            // 将 options 中的 complete 赋值给 complete 变量
+            complete = options.complete;
+// 如果 complete 为真
+            if ( complete ) {
+                // 将 options.complete 设为 false
+                options.complete = false;
+                // 调用 complete 函数，并将 elem 作为参数传递
+                complete.call( elem );
+            }
+        }
+// 返回 false
+        return false;
+// 否则
+    } else {
+        // 经典的缓动效果不能用于无限时长
+        if ( options.duration == Infinity ) {
+    // 将当前时间 t 赋值给 this.now
+    this.now = t;
+} else {
+    // 计算经过的时间 n，等于当前时间 t 减去开始时间 this.startTime
+    n = t - this.startTime;
+    // 计算动画状态，等于经过的时间 n 除以总时长 options.duration
+    this.state = n / options.duration;
+    // 执行缓动函数，默认为 swing，根据动画属性从 jQuery.easing 中选择相应的缓动函数
+    this.pos = jQuery.easing[ options.animatedProperties[this.prop] ]( this.state, n, 0, 1, options.duration );
+    // 计算当前位置，根据起始位置、结束位置和缓动后的位置比例计算
+    this.now = this.start + ( (this.end - this.start) * this.pos );
+}
+// 执行动画的下一步
+this.update();
+}
+// 返回 true
+return true;
+}
+};
+// 扩展 jQuery.fx 对象
+jQuery.extend( jQuery.fx, {
+    // 定义 tick 函数
+    tick: function() {
+        // 定义变量 timer 和 timers，将 jQuery.timers 赋值给 timers
+        var timer,
+            timers = jQuery.timers,
+            i = 0;
+        // 遍历 timers 数组
+        for ( ; i < timers.length; i++ ) {
+            // 将当前元素赋值给 timer
+            timer = timers[ i ];
+            // 检查定时器是否未被移除，如果是则将其从数组中移除
+            if (!timer() && timers[ i ] === timer ) {
+                timers.splice( i--, 1 );
+            }
+        }
+        // 如果 timers 数组为空
+        if (!timers.length ) {
+            // 调用 jQuery.fx.stop 函数
+            jQuery.fx.stop();
+        }
+    },
+    // 定义间隔时间为 13
+    interval: 13,
+    // 定义 stop 函数
+    stop: function() {
+        // 清除定时器
+        clearInterval( timerId );
+        // 将 timerId 设为 null
+        timerId = null;
+    },
+    // 定义速度对象
+    speeds: {
+        // 慢速度为 600
+        slow: 600,
+        // 快速度为 200
+        fast: 200,
+        // 默认速度为 400
+        // Default speed
+        _default: 400
+    },
+    // 定义 step 对象
+    step: {
+        // 针对 opacity 属性的动画步骤函数
+        opacity: function( fx ) {
+            // 设置元素的 opacity 样式为 fx.now
+            jQuery.style( fx.elem, "opacity", fx.now );
+        },
+        // 默认的动画步骤函数
+        _default: function( fx ) {
+            // 如果元素有 style 属性且相应的属性不为空
+            if ( fx.elem.style && fx.elem.style[ fx.prop ]!= null ) {
+                // 设置元素的相应属性为 fx.now 加上单位
+                fx.elem.style[ fx.prop ] = fx.now + fx.unit;
+            } else {
+                // 直接设置元素的相应属性为 fx.now
+                fx.elem[ fx.prop ] = fx.now;
+            }
+        }
+    }
+});
+// 确保不能为负的属性在缓动时不会出现负值
+jQuery.each( fxAttrs.concat.apply( [], fxAttrs ), function( i, prop ) {
+    // 排除 margin 相关属性（除了 marginTop, marginLeft, marginBottom 和 marginRight）
+    if ( prop.indexOf( "margin" ) ) {
+        // 为相应属性定义动画步骤函数
+        jQuery.fx.step[ prop ] = function( fx ) {
+            // 设置元素的相应属性，取最大值 0 和 fx.now 加上单位
+            jQuery.style( fx.elem, prop, Math.max(0, fx.now) + fx.unit );
+        };
+    }
+});
+// 如果 jQuery.expr 和 jQuery.expr.filters 存在
+if ( jQuery.expr && jQuery.expr.filters ) {
+    // 为 jQuery.expr.filters 定义 animated 函数
+    jQuery.expr.filters.animated = function( elem ) {
+        // 使用 jQuery.grep 过滤 jQuery.timers 数组，筛选出元素等于 fn.elem 的元素
+        return jQuery.grep(jQuery.timers, function( fn ) {
+            return elem === fn.elem;
+        }).length;
+    };
+}
+// 尝试恢复元素的默认显示值
+function defaultDisplay( nodeName ) {
+    // 如果 elemdisplay[ nodeName ] 不存在
+    if (!elemdisplay[ nodeName ] ) {
+        // 创建 body 元素
+        var body = document.body,
+            // 创建一个新元素
+            elem = jQuery( "<" + nodeName + ">" ).appendTo( body ),
+            // 获取元素的显示样式
+            display = elem.css( "display" );
+        // 移除元素
+        elem.remove();
+        // 如果显示样式为 none 或空
+        if ( display === "none" || display === "" ) {
+            // 如果 iframe 不存在，创建 iframe
+            if (!iframe ) {
+                iframe = document.createElement( "iframe" );
+                iframe.frameBorder = iframe.width = iframe.height = 0;
+            }
+            // 将 iframe 添加到 body 中
+            body.appendChild( iframe );
+            // 如果 iframeDoc 不存在或 iframe 不支持 createElement
+            if (!iframeDoc ||!iframe.createElement ) {
+                // 获取 iframe 的文档对象
+                iframeDoc = ( iframe.contentWindow || iframe.contentDocument ).document;
+                // 写入文档内容
+                iframeDoc.write( ( jQuery.support.boxModel? "<!doctype html>" : "" ) + "<html><body>" );
+                // 关闭文档
+                iframeDoc.close();
+            }
+            // 在 iframe 文档中创建元素
+            elem = iframeDoc.createElement( nodeName );
+            // 将元素添加到 iframe 文档的 body 中
+            iframeDoc.body.appendChild( elem );
+            // 获取元素的显示样式
+            display = jQuery.css( elem, "display" );
+            // 从 body 中移除 iframe
+            body.removeChild( iframe );
+        }
+        // 存储元素的正确默认显示值
+        elemdisplay[ nodeName ] = display;
+    }
+    // 返回元素的默认显示值
+    return elemdisplay[ nodeName ];
+}
+// 定义变量 getOffset 和正则表达式 rtable、rroot
+var getOffset,
+    rtable = /^t(?:able|d|h)$/i,
+    rroot = /^(?:body|html)$/i;
+// 如果 document.documentElement 支持 getBoundingClientRect 方法
+if ( "getBoundingClientRect" in document.documentElement ) {
+    // 定义 getOffset 函数
+    getOffset = function( elem, doc, docElem, box ) {
+        try {
+            // 获取元素的边界矩形
+            box = elem.getBoundingClientRect();
+        } catch(e) {}
+        // 确保元素在 DOM 中
+        if (!box ||!jQuery.contains( docElem, elem ) ) {
+            // 如果获取失败或元素不在 DOM 中，返回默认的偏移量
+            return box? { top: box.top, left: box.left } : { top: 0, left: 0 };
+        }
+        // 获取 body 元素
+        var body = doc.body,
+            // 获取窗口对象
+            win = getWindow( doc ),
+            // 获取客户端顶部偏移量
+            clientTop  = docElem.clientTop  || body.clientTop  || 0,
+            // 获取客户端左侧偏移量
+            clientLeft = docElem.clientLeft || body.clientLeft || 0,
+            // 获取页面垂直滚动距离
+            scrollTop  = win.pageYOffset || jQuery.support.boxModel && docElem.scrollTop  || body.scrollTop,
+            // 获取页面水平滚动距离
+            scrollLeft = win.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft,
+            // 计算顶部偏移量
+            top  = box.top  + scrollTop  - clientTop,
+            // 计算左侧偏移量
+            left = box.left + scrollLeft - clientLeft;
+        // 返回元素的偏移量
+        return { top: top, left: left };
+    };
+// 否则
+} else {
+    // 另一种获取偏移量的函数
+    getOffset = function( elem, doc, docElem ) {
+        // 定义变量 computedStyle
+        var computedStyle,
+            // 获取元素的偏移父元素
+            offsetParent = elem.offsetParent,
+            // 上一个偏移父元素
+            prevOffsetParent = elem,
+            // 获取 body 元素
+            body = doc.body,
+            // 获取文档的默认视图
+            defaultView = doc.defaultView,
+            // 获取元素的计算样式
+            prevComputedStyle = defaultView? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
+            // 获取元素的顶部偏移量
+            top = elem.offsetTop,
+            // 获取元素的左侧偏移量
+            left = elem.offsetLeft;
+        // 遍历元素的父元素
+        while ( (elem = elem.parentNode) && elem!== body && elem!== docElem ) {
+            // 如果支持固定定位且上一个元素的位置是固定的
+            if ( jQuery.support.fixedPosition && prevComputedStyle.position === "fixed" ) {
+                break;
+            }
+            // 获取元素的计算样式
+            computedStyle = defaultView? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
+            // 减去元素的滚动距离
+            top  -= elem.scrollTop;
+            left -= elem.scrollLeft;
+            // 如果元素是偏移父元素
+            if ( elem === offsetParent ) {
+                // 加上偏移父元素的偏移量
+                top  += elem.offsetTop;
+                left += elem.offsetLeft;
+                // 如果不添加边框且元素不是 table 或单元格
+                if ( jQuery.support.doesNotAddBorder &&!(jQuery.support.doesAddBorderForTableAndCells && rtable.test(elem.nodeName)) ) {
+                    // 加上边框宽度
+                    top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
+                    left += parseFloat( computedStyle.borderLeftWidth ) || 0;
+                }
+                // 更新上一个偏移父元素
+                prevOffsetParent = offsetParent;
+                // 更新偏移父元素
+                offsetParent = elem.offsetParent;
+            }
+            // 如果支持减去不可见溢出元素的边框且元素的溢出不是可见的
+            if ( jQuery.support.subtractsBorderForOverflowNotVisible && computedStyle.overflow!== "visible" ) {
+                // 加上边框宽度
+                top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
+                left += parseFloat( computedStyle.borderLeftWidth ) || 0;
+            }
+            // 更新计算样式
+            prevComputedStyle = computedStyle;
+        }
+        // 如果上一个元素的位置是相对或静态的
+        if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" ) {
+            // 加上 body 的偏移量
+            top  += body.offsetTop;
+            left += body.offsetLeft;
+        }
+        // 如果支持固定定位且上一个元素的位置是固定的
+        if ( jQuery.support.fixedPosition && prevComputedStyle.position === "fixed" ) {
+            // 加上最大的滚动距离
+            top  += Math.max( docElem.scrollTop, body.scrollTop );
+            left += Math.max( docElem.scrollLeft, body.scrollLeft );
+        }
+        // 返回元素的偏移量
+        return { top: top, left: left };
+    };
+}
+// 为 jQuery.fn.offset 函数添加方法
+jQuery.fn.offset = function( options ) {
+    // 如果有参数
+    if ( arguments.length ) {
+        // 如果 options 为 undefined，返回 this，否则遍历元素并调用 jQuery.offset.setOffset 函数
+        return options === undefined?
+            this :
+            this.each(function( i ) {
+                jQuery.offset.setOffset( this, options, i );
+            });
+    }
+    // 获取第一个元素
+    var elem = this[0],
+        // 获取元素的所有者文档
+        doc = elem && elem.ownerDocument;
+    // 如果文档不存在
+    if (!doc ) {
+        // 返回 null
+        return null;
+    }
+    // 如果元素是 body
+    if ( elem === doc.body ) {
+        // 获取 body 的偏移量
+        return jQuery.offset.bodyOffset( elem );
+    }
+    // 调用 getOffset 函数获取偏移量
+    return getOffset( elem, doc, doc.documentElement );
+};
+// 定义 jQuery.offset 对象
+jQuery.offset = {
+    // 获取 body 的偏移量
+    bodyOffset: function( body ) {
+        // 获取 body 的顶部和左侧偏移量
+        var top = body.offsetTop,
+            left = body.offsetLeft;
+        // 如果不包含 body 中的 margin 到偏移量中
+        if ( jQuery.support.doesNotIncludeMarginInBodyOffset ) {
+            // 加上 margin 顶部和左侧的值
+            top  += parseFloat( jQuery.css(body, "marginTop") ) || 0;
+            left += parseFloat( jQuery.css(body, "marginLeft") ) || 0;
+        }
+        // 返回偏移量
+        return { top: top, left: left };
+    },
+    // 设置元素的偏移量
+    setOffset: function( elem, options, i ) {
+        // 获取元素的位置
+        var position = jQuery.css( elem, "position" );
+        // 如果元素是静态位置，将其设为相对位置
+        if ( position === "static" ) {
+            elem.style.position = "relative";
+        }
+        // 获取元素的 jQuery 对象
+        var curElem = jQuery( elem ),
+            // 获取元素的偏移量
+            curOffset = curElem.offset(),
+            // 获取元素的顶部样式
+            curCSSTop = jQuery.css( elem, "top" ),
+            // 获取元素的左侧样式
+            curCSSLeft = jQuery.css( elem, "left" ),
+            // 判断是否需要计算位置
+            calculatePosition = ( position === "absolute" || position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
+            // 定义 props 和 curPosition 对象
+            props = {}, curPosition = {}, curTop, curLeft;
+        // 如果需要计算位置
+        if ( calculatePosition ) {
+            // 获取元素的位置
+            curPosition = curElem.position();
+            // 获取元素的顶部位置
+            curTop = curPosition.top;
+            // 获取元素的左侧位置
+            curLeft = curPosition.left;
+        } else {
+            // 获取元素的顶部和左侧位置
+            curTop = parseFloat( curCSSTop ) || 0;
+            curLeft = parseFloat( curCSSLeft ) || 0;
+        }
+        // 如果 options 是一个函数
+        if ( jQuery.isFunction( options ) ) {
+            // 调用函数并传递参数
+            options = options.call( elem, i, curOffset );
+        }
+        // 如果 options 中设置了顶部偏移量
+        if ( options.top!= null ) {
+            // 计算新的顶部偏移量
+            props.top = ( options.top - curOffset.top ) + curTop;
+        }
+        // 如果 options 中设置了左侧偏移量
+        if ( options.left!= null ) {
+            // 计算新的左侧偏移量
+            props.left = ( options.left - curOffset.left ) + curLeft;
+        }
+        // 如果 options 中使用了 using 函数
+        if ( "using" in options ) {
+            // 调用 using 函数
+            options.using.call( elem, props );
+        } else {
+            // 设置元素的样式
+            curElem.css( props );
+        }
+    }
+};
 
-                                // Get document width or height
-                                if ( elem.nodeType === 9 ) {
-                                    // Either scroll[Width/Height] or offset[Width/Height], whichever is greater
-                                    doc = elem.documentElement;
-
-                                    // when a window > document, IE6 reports a offset[Width/Height] > client[Width/Height]
-                                    // so we can't use max, as it'll choose the incorrect offset[Width/Height]
-                                    // instead we use the correct client[Width/Height]
-                                    // support:IE6
-                                    if ( doc[ clientProp ] >= doc[ scrollProp ] ) {
-                                        return doc[ clientProp ];
-                                    }
+// 扩展 jQuery.fn 对象
+jQuery.fn.extend({
+    // 定义 position 函数
+    position: function() {
+        // 如果没有元素，返回 null
+        if (!this[0] ) {
+            return null;
+        }
+        // 获取第一个元素
+        var elem = this[0],
+            // 获取元素的偏移父元素
+            // Get *real* offsetParent
+            offsetParent = this.offsetParent(),
+            // 获取元素的偏移量
+            // Get correct offsets
+            offset       = this.offset(),
+            // 如果偏移父元素是 body 或 html，设置 parentOffset 为 { top: 0, left: 0 }，否则获取偏移父元素的偏移量
+            parentOffset = rroot.test(offsetParent[0].nodeName)? { top: 0, left: 0 } : offsetParent.offset();
+        // 减去元素的 marginTop 边距
+        // Subtract element margins
+        // note: when an element has margin: auto the offsetLeft and marginLeft
+        // are the same in Safari causing offset.left to incorrectly be 0
+        offset.top  -= parseFloat( jQuery.css(elem, "marginTop") ) || 0;
+        // 减去元素的 marginLeft 边距
+        offset.left -= parseFloat( jQuery.css(elem, "marginLeft") ) || 0;
+        // 加上偏移父元素的 borderTopWidth 边框宽度
+        // Add offsetParent borders
+        parentOffset.top  += parseFloat( jQuery.css(offsetParent[0], "borderTopWidth") ) || 0;
+        // 加上偏移父元素的 borderLeftWidth 边框宽度
+        parentOffset.left += parseFloat( jQuery.css(offsetParent[0], "borderLeftWidth") ) || 0;
+        // 计算并返回最终的位置，为元素偏移量减去偏移父元素的偏移量
+        // Subtract the two offsets
+        return {
+            top:  offset.top  - parentOffset.top,
+            left: offset.left - parentOffset.left
+        };
+    },
+    // 定义 offsetParent 函数
+    offsetParent: function() {
+        // 对元素集合进行映射操作
+        return this.map(function() {
+            // 获取元素的偏移父元素，如果没有则为 document.body
+            var offsetParent = this.offsetParent || document.body;
+            // 当偏移父元素存在且不是 body 或 html 且位置为 static 时，继续查找上一级偏移父元素
+            while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
+                offsetParent = offsetParent.offsetParent;
+            }
+            // 返回最终的偏移父元素
+            return offsetParent;
+        });
+    }
+});
 
-                                    return Math.max(
-                                        elem.body[ scrollProp ], doc[ scrollProp ],
-                                        elem.body[ offsetProp ], doc[ offsetProp ]
-                                    );
-                                }
 
-                                // Get width or height on the element
-                                if ( value === undefined ) {
-                                    orig = jQuery.css( elem, type );
-                                    ret = parseFloat( orig );
-                                    return jQuery.isNumeric( ret ) ? ret : orig;
-                                }
+// 遍历 scrollLeft 和 scrollTop 及其对应的 pageXOffset 和 pageYOffset 属性
+// Create scrollLeft and scrollTop methods
+jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
+    // 判断 prop 是否包含 Y
+    var top = /Y/.test( prop );
+    // 为 jQuery.fn 扩展相应的方法
+    jQuery.fn[ method ] = function( val ) {
+        // 调用 jQuery.access 函数
+        return jQuery.access( this, function( elem, method, val ) {
+            // 获取元素的窗口对象
+            var win = getWindow( elem );
+            // 如果 val 未定义
+            if ( val === undefined ) {
+                // 如果存在窗口对象，根据不同情况获取滚动值
+                return win? (prop in win)? win[ prop ] :
+                        jQuery.support.boxModel && win.document.documentElement[ method ] ||
+                        win.document.body[ method ] :
+                    elem[ method ];
+            }
+            // 如果存在窗口对象
+            if ( win ) {
+                // 调用 scrollTo 方法设置滚动位置
+                win.scrollTo(
+                    // 根据 top 判断是设置水平还是垂直滚动位置
+                    !top? val : jQuery( win ).scrollLeft(),
+                    top? val : jQuery( win ).scrollTop()
+                );
+            } else {
+                // 直接设置元素的滚动属性
+                elem[ method ] = val;
+            }
+        }, method, val, arguments.length, null );
+    };
+});
 
-                                // Set the width or height on the element
-                                jQuery( elem ).css( type, value );
-                            }, type, value, arguments.length, null );
-                        };
-                    });
+// 定义 getWindow 函数，用于获取元素的窗口对象
+function getWindow( elem ) {
+    // 如果元素是窗口，直接返回
+    return jQuery.isWindow( elem )?
+        elem :
+        // 如果元素是文档节点，返回其默认视图或父窗口
+        elem.nodeType === 9?
+            elem.defaultView || elem.parentWindow :
+            false;
+}
 
 
+// 遍历 Height 和 Width 属性，创建一系列方法
+// Create width, height, innerHeight, innerWidth, outerHeight and outerWidth methods
+jQuery.each( { Height: "width", Width: "height" }, function( name, type ) {
+    // 生成相应的 client、scroll 和 offset 属性
+    var clientProp = "client" + name,
+        scrollProp = "scroll" + name,
+        offsetProp = "offset" + name;
+    // 定义 innerHeight 和 innerWidth 方法
+    // innerHeight and innerWidth
+    jQuery.fn[ "inner" + name ] = function() {
+        // 获取第一个元素
+        var elem = this[0];
+        // 如果元素存在且有样式，使用 jQuery.css 获取元素的尺寸（包含内边距），否则使用元素的相应方法
+        return elem?
+            elem.style?
+                parseFloat( jQuery.css( elem, type, "padding" ) ) :
+                this[ type ]() :
+            null;
+    };
+    // 定义 outerHeight 和 outerWidth 方法
+    // outerHeight and outerWidth
+    jQuery.fn[ "outer" + name ] = function( margin ) {
+        // 获取第一个元素
+        var elem = this[0];
+        // 如果元素存在且有样式，使用 jQuery.css 获取元素的尺寸（根据 margin 参数包含边距或边框），否则使用元素的相应方法
+        return elem?
+            elem.style?
+                parseFloat( jQuery.css( elem, type, margin? "margin" : "border" ) ) :
+                this[ type ]() :
+            null;
+    };
+    // 定义 width 或 height 方法
+    jQuery.fn[ type ] = function( value ) {
+        // 调用 jQuery.access 函数
+        return jQuery.access( this, function( elem, type, value ) {
+            var doc, docElemProp, orig, ret;
+            // 如果元素是窗口
+            if ( jQuery.isWindow( elem ) ) {
+                // 获取文档对象和相应的文档元素属性
+                doc = elem.document;
+                docElemProp = doc.documentElement[ clientProp ];
+                // 根据 boxModel 支持情况获取相应的尺寸
+                return jQuery.support.boxModel && docElemProp ||
+                    doc.body && doc.body[ clientProp ] || docElemProp;
+            }
+            // 如果元素是文档节点
+            if ( elem.nodeType === 9 ) {
+                // 获取文档元素
+                doc = elem.documentElement;
+                // 如果 client 尺寸大于等于 scroll 尺寸，使用 client 尺寸，否则取最大的 scroll 或 offset 尺寸
+                // when a window > document, IE6 reports a offset[Width/Height] > client[Width/Height]
+                // so we can't use max, as it'll choose the incorrect offset[Width/Height]
+                // instead we use the correct client[Width/Height]
+                // support:IE6
+                if ( doc[ clientProp ] >= doc[ scrollProp ] ) {
+                    return doc[ clientProp ];
+                }
+                return Math.max(
+                    elem.body[ scrollProp ], doc[ scrollProp ],
+                    elem.body[ offsetProp ], doc[ offsetProp ]
+                );
+            }
+            // 如果 value 未定义，使用 jQuery.css 获取元素的尺寸，并将结果转为浮点数
+            if ( value === undefined ) {
+                orig = jQuery.css( elem, type );
+                ret = parseFloat( orig );
+                // 如果是数字，返回数字，否则返回原始结果
+                return jQuery.isNumeric( ret )? ret : orig;
+            }
+            // 设置元素的宽度或高度
+            jQuery( elem ).css( type, value );
+        }, type, value, arguments.length, null );
+    };
+});
 
 
+// 将 jQuery 暴露到全局对象 window 中
 // Expose jQuery to the global object
-                    window.jQuery = window.$ = jQuery;
+window.jQuery = window.$ = jQuery;
 
+// 将 jQuery 作为 AMD 模块暴露，但仅适用于理解在页面中加载多个 jQuery 版本问题的 AMD 加载器
 // Expose jQuery as an AMD module, but only for AMD loaders that
 // understand the issues with loading multiple versions of jQuery
 // in a page that all might call define(). The loader will indicate
@@ -19134,11 +9700,10 @@
 // file names, and jQuery is normally delivered in a lowercase file name.
 // Do this after creating the global so that if an AMD module wants to call
 // noConflict to hide this version of jQuery, it will work.
-                    if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
-                        define( "jquery", [], function () { return jQuery; } );
-                    }
-
+if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
+    define( "jquery", [], function () { return jQuery; } );
+}
 
 
-                })( window );
 
+})( window );
\ No newline at end of file