BookStore/web/static/script/jquery-1.7.2.js

/*!
 * 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 ) {

// 使用与窗口参数相对应的正确文档（沙箱环境）
	var document = window.document,
		// 获取当前窗口的文档对象
		navigator = window.navigator,
		// 获取浏览器的导航信息
		location = window.location;
	// 获取当前文档的地址信息
	var jQuery = (function() {

// 定义一个局部的 jQuery 函数
		var jQuery = function( selector, context ) {
				// jQuery 对象实际上是经过增强的 init 构造函数
				return new jQuery.fn.init( selector, context, rootjQuery );
				// 返回初始化后的 jQuery 实例
			},

			// 在窗口对象中保存 jQuery 的引用，以防被覆盖
			_jQuery = window.jQuery,

			// 在窗口对象中保存 $ 的引用，以防被覆盖
			_$ = window.$,

			// 指向根 jQuery(document) 的中央引用
			rootjQuery,

			// 简单检查 HTML 字符串或 ID 字符串的正则表达式
			// 优先考虑 #id 以避免通过 location.hash 引发 XSS （安全漏洞 #9521）
			quickExpr = /^(?:[^#<]*(<[\w\W]+>)[^>]*$|#([\w\-]*)$)/,

			// 检查字符串是否包含非空白字符的正则表达式
			rnotwhite = /\S/,

			// 用于修剪左右两端空白字符的正则表达式
			trimLeft = /^\s+/,
			trimRight = /\s+$/,

			// 匹配独立标签的正则表达式
			rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,

			// JSON 验证相关的正则表达式
			rvalidchars = /^[\],:{}\s]*$/,
			// 验证 JSON 字符串中的字符
			rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
			// 匹配有效的 JSON 转义字符
			rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
			// 匹配 JSON 中的有效令牌
			rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
			// 匹配 JSON 中的括号


			// 用户代理相关的正则表达式，用于检测浏览器类型
			rwebkit = /(webkit)[ \/]([\w.]+)/,
			// 检测 WebKit 浏览器
			ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
			// 检测 Opera 浏览器
			rmsie = /(msie) ([\w.]+)/,
			// 检测 Internet Explorer 浏览器
			rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
			// 检测 Mozilla 浏览器

			// 匹配带有短横线的字符串以进行驼峰化
			rdashAlpha = /-([a-z]|[0-9])/ig,
			// 匹配短横线后跟字母或数字的模式
			rmsPrefix = /^-ms-/,
			// 匹配以 -ms- 开头的前缀

			// 被 jQuery.camelCase 使用的回调函数，用于字符串替换
			fcamelCase = function( all, letter ) {
				return ( letter + "" ).toUpperCase();
				// 将匹配到的字母转换为大写
			},

			// 保存用户代理字符串，以供 jQuery.browser 使用
			userAgent = navigator.userAgent,

			// 用于匹配浏览器的引擎和版本
			browserMatch,

			// 用于 DOM 准备就绪的延迟对象
			readyList,

			// 准备就绪事件处理程序
			DOMContentLoaded,

			// 保存对一些核心方法的引用
			toString = Object.prototype.toString,
			// 获取对象的字符串表示
			hasOwn = Object.prototype.hasOwnProperty,
			// 检查对象是否有指定的属性
			push = Array.prototype.push,
			// 数组的 push 方法
			slice = Array.prototype.slice,
			// 数组的 slice 方法
			trim = String.prototype.trim,
			// 字符串的 trim 方法，去除空白字符
			indexOf = Array.prototype.indexOf,
			// 数组的 indexOf 方法，用于查找元素

			// [[Class]] -> 类型对应关系的对象
			class2type = {};
		// 用于存储不同数据类型的映射关系

// jQuery.fn 和 jQuery.prototype 定义了 jQuery 的原型
		jQuery.fn = jQuery.prototype = {
			constructor: jQuery,
			// 构造函数指向 jQuery
			init: function( selector, context, rootjQuery ) {
				var match, elem, ret, doc;
				// 定义局部变量

				// 处理空选择器 $(""), $(null), 或 $(undefined)
				if ( !selector ) {
					return this;
					// 返回当前对象
				}

				// 处理 $(DOMElement)，当传入的是一个 DOM 元素时
				if ( selector.nodeType ) {
					this.context = this[0] = selector;
					// 将上下文和第一个元素设置为该元素
					this.length = 1;
					// 设置长度为 1
					return this;
					// 返回当前对象
				}

				// body 元素只存在一次，优化查找过程
				if ( selector === "body" && !context && document.body ) {
					this.context = document;
					// 设置上下文为文档
					this[0] = document.body;
					// 将第一个元素设置为 body 元素
					this.selector = selector;
					// 保存选择器字符串
					this.length = 1;
					// 设置长度为 1
					return this;
					// 返回当前对象
				}

				// 处理 HTML 字符串
				if ( typeof selector === "string" ) {
					// 判断我们是处理 HTML 字符串还是 ID
					if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
						// 假设以 <> 开头和结尾的字符串是 HTML，因此跳过正则检查
						match = [ null, selector, null ];
						// 创建一个匹配数组

					} else {
						match = quickExpr.exec( selector );
						// 使用正则表达式检查选择器
					}

					// 验证匹配，并且在指定 ID 时未提供上下文
					if ( match && (match[1] || !context) ) {

						// 处理: $(html) -> $(array)
						if ( match[1] ) {
							context = context instanceof jQuery ? context[0] : context;
							// 如果上下文是 jQuery 对象，则取其第一个元素
							doc = ( context ? context.ownerDocument || context : document );
							// 获取文档对象

							// 如果传入的是单个字符串且它是单个标签
							// 则直接使用 createElement 跳过剩余处理
							ret = rsingleTag.exec( selector );
							// 检查是否为单一标签并执行相应操作

							if ( ret ) {
								// 如果 ret 存在，表示我们匹配到了一个 HTML 标签
								if ( jQuery.isPlainObject( context ) ) {
									// 如果上下文是一个普通对象
									selector = [ document.createElement( ret[1] ) ];
									// 创建一个新的元素，并将其放入选择器数组中
									jQuery.fn.attr.call( selector, context, true );
									// 为新创建的元素设置属性

								} else {
									selector = [ doc.createElement( ret[1] ) ];
									// 否则，仅仅创建元素并放入选择器数组中
								}

							} else {
								// 如果没有匹配到 HTML 标签
								ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
								// 构建一个文档片段
								selector = ( ret.cacheable ? jQuery.clone(ret.fragment) : ret.fragment ).childNodes;
								// 从片段中获取子节点
							}

							return jQuery.merge( this, selector );
							// 将新创建的选择器与当前 jQuery 对象合并

							// 处理: $("#id")
						} else {
							// 如果没有匹配到 HTML，检查是否为 ID 选择器
							elem = document.getElementById( match[2] );
							// 根据 ID 获取元素

							// 检查 parentNode，以捕获当 Blackberry 4.6 返回
							// 不再在文档中的节点 #6963
							if ( elem && elem.parentNode ) {
								// 如果元素存在且它有父节点
								// 处理 IE 和 Opera 可能会根据名称而非 ID 返回项的情况

								if ( elem.id !== match[2] ) {
									// 如果元素的 ID 与匹配的 ID 不相等
									return rootjQuery.find( selector );
									// 使用 jQuery 的查找方法进行搜索
								}

								// 否则，将元素直接注入到 jQuery 对象中
								this.length = 1;
								// 设置长度为 1
								this[0] = elem;
								// 将找到的元素放入 jQuery 对象中

							}

							this.context = document;
							// 设置上下文为文档
							this.selector = selector;
							// 保存选择器字符串
							return this;
							// 返回当前 jQuery 对象
						}

						// 处理: $(expr, $(...))
					} else if ( !context || context.jquery ) {
						// 如果没有上下文或上下文是一个 jQuery 对象，使用根 jQuery 对象查找选择器
						return ( context || rootjQuery ).find( selector );

						// 处理: $(expr, context)
						// 这相当于: $(context).find(expr)
					} else {
						// 在指定的上下文中查找选择器
						return this.constructor( context ).find( selector );
					}

					// 处理: $(function)
					// 简化文档就绪的快捷方式
				} else if ( jQuery.isFunction( selector ) ) {
					// 如果选择器是一个函数，调用根 jQuery 对象的 ready 方法
					return rootjQuery.ready( selector );
				}

				// 如果选择器对象有 selector 属性，则保存上下文和选择器
				if ( selector.selector !== undefined ) {
					this.selector = selector.selector;// 保存选择器字符串
					this.context = selector.context;// 保存上下文
				}

				// 将选择器转化为数组，并返回当前 jQuery 对象
				return jQuery.makeArray( selector, this );
			},

			// 选择器初始为空字符串
			selector: "",

			// 当前 jQuery 版本
			jquery: "1.7.2",

			// jQuery 对象的默认长度为 0
			length: 0,

			// 获取匹配元素集合中的元素数量
			size: function() {
				return this.length;
				// 返回当前 jQuery 对象的长度
			},

			toArray: function() {
				// 将 jQuery 对象转换为原生数组并返回
				return slice.call( this, 0 );
			},

			// 获取匹配元素集合中的第 N 个元素，或返回整个匹配元素集合的干净数组
			get: function( num ) {
				return num == null ?

					// 如果未提供参数，返回一个“干净”的数组
					this.toArray() :

					// 返回特定索引的对象，如果是负数则从后向前获取
					( num < 0 ? this[ this.length + num ] : this[ num ] );
			},

			// 接受一个元素数组并将其推入栈中（返回新的匹配元素集合）
			pushStack: function( elems, name, selector ) {
				// 创建一个新的 jQuery 匹配元素集合
				var ret = this.constructor();

				// 如果传入的元素是一个数组，则将其添加到新集合中
				if ( jQuery.isArray( elems ) ) {
					push.apply( ret, elems );

				} else {
					// 否则，将单个元素合并到新集合中
					jQuery.merge( ret, elems );
				}

				// 将旧对象作为引用添加到栈中
				ret.prevObject = this;

				// 保存上下文
				ret.context = this.context;

				// 根据名称和选择器更新新的选择器字符串
				if ( name === "find" ) {
					// 如果名称为 find，更新选择器为原选择器加上新选择器
					ret.selector = this.selector + ( this.selector ? " " : "" ) + selector;
				} else if ( name ) {
					// 否则，格式化选择器为 "原选择器.方法名(选择器)"
					ret.selector = this.selector + "." + name + "(" + selector + ")";
				}

				// 返回新形成的元素集合
				return ret;
			},

			// 为匹配集合中的每个元素执行回调函数。
			// （你可以用一个数组作为参数进行初始化，但这仅在内部使用。）
			each: function( callback, args ) {
				return jQuery.each( this, callback, args );
				// 调用 jQuery 的 each 方法，传入当前对象和回调
			},

			ready: function( fn ) {
				// 绑定文档就绪事件的监听器
				jQuery.bindReady();

				// 添加回调函数到就绪列表中
				readyList.add( fn );

				return this;
				// 返回当前对象以便链式调用
			},

			eq: function( i ) {
				i = +i;
				// 将输入转换为数字
				return i === -1 ?
					// 如果输入是 -1，返回整个集合
					this.slice( i ) :
					// 从集合的末尾返回元素
					this.slice( i, i + 1 );
				// 否则返回索引为 i 的单个元素
			},

			first: function() {
				return this.eq( 0 );
				// 返回集合中的第一个元素
			},

			last: function() {
				return this.eq( -1 );
				// 返回集合中的最后一个元素
			},

			slice: function() {
				// 使用 slice 方法从当前集合中切片，并返回新的匹配集合
				return this.pushStack(
					slice.apply( this, arguments ),
					// 应用 slice 函数于当前集合
					"slice",
					// 标识操作类型为 "slice"
					slice.call(arguments).join(",")
					// 组合切片参数并作为选择器
				);
			},

			map: function( callback ) {
				// 将回调应用于集合中的每个元素，并返回新的匹配集合
				return this.pushStack( jQuery.map(this, function( elem, i ) {
					return callback.call( elem, i, elem );
					// 在每个元素上调用回调
				}));
			},

			end: function() {
				// 返回上一个 jQuery 对象或一个空的 jQuery 对象
				return this.prevObject || this.constructor(null);
			},

			// 仅供内部使用。
			// 行为类似于数组的方法，而不是 jQuery 方法
			push: push,
			// 将 push 方法赋给当前对象
			sort: [].sort,
			// 将原生数组的 sort 方法赋给当前对象
			splice: [].splice
			// 将原生数组的 splice 方法赋给当前对象
		};

// 将 init 函数的原型设置为 jQuery 的原型，以便后续实例化时使用
		jQuery.fn.init.prototype = jQuery.fn;

// 扩展 jQuery 和 jQuery.fn 的方法
		jQuery.extend = jQuery.fn.extend = function() {
			var options, name, src, copy, copyIsArray, clone,
				// 声明变量用于存储
				target = arguments[0] || {},
				// 第一个参数作为目标对象，默认为空对象
				i = 1,
				// 从第二个参数开始遍历
				length = arguments.length,
				// 参数总数
				deep = false;
			// 深拷贝标志，默认不深拷贝

			// 处理深拷贝情况
			if ( typeof target === "boolean" ) {
				// 如果第一个参数是布尔值
				deep = target;
				// 记录是否深拷贝
				target = arguments[1] || {};
				// 将第二个参数作为目标对象

				// 跳过布尔值和目标对象
				i = 2;
				// 从第三个参数开始
			}

			// 处理目标为字符串或其他类型的情况（可能在深拷贝时发生）
			if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
				target = {};
				// 如果目标不是对象或函数，则将其重置为空对象
			}

			// 如果只有一个参数，扩展 jQuery 本身
			if ( length === i ) {
				target = this;// 将目标设置为当前对象
				--i;// 参数索引减一
			}

			for ( ; i < length; i++ ) {
				// 迭代参数列表，从第 i 个元素开始，直到 length

				// 只处理非空值（非 null 和 undefined）
				if ( (options = arguments[ i ]) != null ) {
					// 获取当前参数，并确保它不为 null 或 undefined

					// 扩展目标对象
					for ( name in options ) {
						// 遍历 options 对象的每个属性

						src = target[ name ]; // 获取目标对象中对应属性的值
						copy = options[ name ]; // 获取当前选项对象中对应属性的值

						// 防止无限循环
						if ( target === copy ) {
							// 如果源和目标是同一个对象，跳过
							continue;
						}

						// 如果正在合并普通对象或数组，则递归
						if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
							// 检查是否需要深拷贝以及当前属性是否为对象或数组
							if ( copyIsArray ) {
								// 如果是数组
								copyIsArray = false; // 重置标志
								clone = src && jQuery.isArray(src) ? src : [];
								// 如果目标对象中已有数组，则使用它，否则初始化一个空数组

							} else {
								// 如果是普通对象
								clone = src && jQuery.isPlainObject(src) ? src : {};
								// 如果目标对象中已有对象，则使用它，否则初始化一个空对象
							}

							// 永远不要直接移动原始对象，进行克隆
							target[ name ] = jQuery.extend( deep, clone, copy );
							// 使用 jQuery.extend 方法深度合并克隆的对象与复制的对象

							// 不要引入 undefined 值
						} else if ( copy !== undefined ) {
							// 如果 copy 不是 undefined，将其赋值给目标对象
							target[ name ] = copy;
						}
					}
				}
			}
			// Return the modified object
	return target;
};

		jQuery.extend({
			// noConflict 方法用于解除 jQuery 的冲突，使其与其他库共存
			noConflict: function (deep) {
				// 如果全局变量 $ 是 jQuery，则将其恢复为之前的值 _$
				if (window.$ === jQuery) {
					window.$ = _$; // 恢复原来的 $ 符号
				}

				// 如果深度冲突处理且全局变量 jQuery 是当前的 jQuery，则将其恢复为之前的值 _jQuery
				if (deep && window.jQuery === jQuery) {
					window.jQuery = _jQuery; // 恢复原来的 jQuery 符号
				}

				return jQuery; // 返回当前的 jQuery 对象
			},

			// 用于跟踪 DOM 是否准备好可供使用，初始值为 false
			isReady: false,

			// 用于计数等待多少个事件触发后 ready 事件会被触发，初始值为 1
			readyWait: 1,

			// holdReady 方法用于控制 ready 事件的触发
			holdReady: function (hold) {
				if (hold) {
					// 如果请求保持状态，则增加 readyWait 计数
					jQuery.readyWait++;
				} else {
					// 否则，触发 ready 事件并将参数设置为 true
					jQuery.ready(true);
				}
			},

			// 处理 DOM 准备就绪的情况
			ready: function (wait) {
				// 如果 wait 参数为 true 且 readyWait 计数减 1 后为 0，或者 wait 参数不是 true 且 isReady 为 false
				if ((wait === true && !--jQuery.readyWait) || (wait !== true && !jQuery.isReady)) {
					// 确保文档的 body 存在，以防 IE 浏览器过于激进（参考 ticket #5443）。
					if (!document.body) {
						// 如果 body 不存在，则延迟调用 jQuery.ready 方法
						return setTimeout(jQuery.ready, 1);
					}

					// 标记 DOM 已经准备好
					jQuery.isReady = true;

					// 如果是常规的 DOM Ready 事件触发，计数减一，并在需要时等待
					if (wait !== true && --jQuery.readyWait > 0) {
						return; // 如果还有其他等待的事件，则直接返回
					}

					// 如果有绑定的函数，需要执行这些函数
					readyList.fireWith(document, [jQuery]);

					// 触发任何已绑定的 ready 事件
					if (jQuery.fn.trigger) {
						// 触发 "ready" 事件并移除该事件的所有处理程序
						jQuery(document).trigger("ready").off("ready");
					}
				}
			},

			bindReady: function () {
				// 如果 readyList 已经被定义，则直接返回，避免重复绑定
				if (readyList) {
					return;
				}

				// 创建一个新的回调列表，用于存储准备就绪的事件，设置为 "once memory" 选项
				readyList = jQuery.Callbacks("once memory");

				// 捕获 $(document).ready() 在浏览器事件已发生后调用的情况
				if (document.readyState === "complete") {
					// 以异步方式处理，以允许脚本有机会延迟 ready 状态
					return setTimeout(jQuery.ready, 1);
				}

				// Mozilla、Opera 和 Webkit Nightlies 当前支持这个事件
				if (document.addEventListener) {
					// 使用方便的事件回调处理 DOMContentLoaded 事件
					document.addEventListener("DOMContentLoaded", DOMContentLoaded, false);

					// 为 window.onload 提供备用处理，这个处理会始终有效
					window.addEventListener("load", jQuery.ready, false);

					// 如果使用的是 IE 的事件模型
				} else if (document.attachEvent) {
					// 确保在 onload 之前触发，
					// 尽管可能稍晚，但对于 iframe 来说也很安全
					document.attachEvent("onreadystatechange", DOMContentLoaded);

					// 为 window.onload 提供备用处理，这个处理会始终有效
					window.attachEvent("onload", jQuery.ready);

					// 如果是在 IE 并且不是一个框架
					// 持续检查文档是否已准备好
					var toplevel = false;

					// 尝试判断当前窗口是否为顶层窗口
					try {
						toplevel = window.frameElement == null; // 检查 frameElement 是否为空
					} catch (e) {
					}

					// 如果文档支持 doScroll 并且是顶层窗口，就进行滚动检查
					if (document.documentElement.doScroll && toplevel) {
						doScrollCheck(); // 调用 doScrollCheck 方法来检查文档准备状态
					}
				}
			},

			// 参见 test/unit/core.js 文件以获取关于 isFunction 的详细信息。
// 从版本 1.3 开始，不支持 DOM 方法和诸如 alert 的函数。
// 在 IE 中，它们会返回 false (#2968)。
			isFunction: function (obj) {
				// 检查给定对象的类型是否为 "function"
				return jQuery.type(obj) === "function";
			},

// 判断是否为数组的函数。优先使用原生 Array.isArray 方法，如果不存在，则使用自定义实现。
			isArray: Array.isArray || function (obj) {
				// 检查给定对象的类型是否为 "array"
				return jQuery.type(obj) === "array";
			},

// 判断给定对象是否为窗口对象的函数
			isWindow: function (obj) {
				// 确保对象不为 null，并且确实是一个窗口对象
				return obj != null && obj == obj.window;
			},

// 判断给定对象是否为数字的函数
			isNumeric: function (obj) {
				// 检查将对象解析为浮点数后，是否不是 NaN 并且是有限数值
				return !isNaN(parseFloat(obj)) && isFinite(obj);
			},

// 用于确定给定对象类型的通用函数
			type: function (obj) {
				// 如果对象为 null，返回其字符串表示
				return obj == null ?
					String(obj) :
					// 根据对象的内部类型标签（通过 toString.call 获取）返回相应的类型名称，
					// 如果找不到对应的类型，则返回 "object"
					class2type[toString.call(obj)] || "object";
			},

			isPlainObject: function (obj) {
				// 必须是一个对象。
				// 由于 IE 的原因，我们还必须检查构造函数属性的存在性。
				// 确保 DOM 节点和窗口对象不会通过该检查。
				if (!obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow(obj)) {
					// 如果 obj 为 null、不是对象类型、是 DOM 节点或是窗口对象，则返回 false
					return false;
				}

				try {
					// 检查 obj 的构造函数：
					// 如果构造函数存在且不是本对象的属性，并且其原型上没有 isPrototypeOf 方法，则返回 false
					if (obj.constructor &&
						!hasOwn.call(obj, "constructor") &&
						!hasOwn.call(obj.constructor.prototype, "isPrototypeOf")) {
						return false;
					}
				} catch (e) {
					// 在某些宿主对象上，IE8 和 IE9 会抛出异常，捕获这些异常并返回 false
					return false;
				}

				// 自有属性首先被枚举，因此为了提高速度，
				// 如果最后一个 key 是自有属性，那么所有属性都是自有属性。

				var key;
				for (key in obj) {
					// 遍历 obj 的所有属性
				}

				// 如果最后一个 key 是 undefined，表示 obj 没有可枚举的属性；
				// 或者最后一个 key 是 obj 的自有属性，返回 true。
				return key === undefined || hasOwn.call(obj, key);
			},

			isEmptyObject: function (obj) {
				// 遍历 obj 的所有属性
				for (var name in obj) {
					// 如果 obj 中有任何属性，返回 false，表示对象不为空
					return false;
				}
				// 如果没有属性，则返回 true，表示对象为空
				return true;
			},

			error: function (msg) {
				// 抛出一个新的错误，错误信息为传入的 msg
				throw new Error(msg);
			},

			parseJSON: function (data) {
				// 首先检查传入的数据是否为字符串且非空
				if (typeof data !== "string" || !data) {
					return null; // 如果不是字符串或为空，返回 null
				}

				// 确保去掉首尾的空格（IE 无法处理）
				data = jQuery.trim(data);

				// 尝试使用原生 JSON 解析器进行解析
				if (window.JSON && window.JSON.parse) {
					return window.JSON.parse(data); // 若支持 JSON 解析，直接使用它进行解析
				}

				// 确保传入的数据是有效的 JSON
				// 逻辑借鉴自 http://json.org/json2.js
				if (rvalidchars.test(data.replace(rvalidescape, "@")
					.replace(rvalidtokens, "]")
					.replace(rvalidbraces, ""))) {

					// 如果数据有效，则利用 Function 构造函数执行并返回结果
					return (new Function("return " + data))();
				}

				// 如果数据无效，则调用 jQuery.error 抛出错误，包含具体的无效 JSON 数据
				jQuery.error("Invalid JSON: " + data);
			},

			// 跨浏览器 XML 解析
			parseXML: function (data) {
				// 首先检查传入的数据是否为字符串且非空
				if (typeof data !== "string" || !data) {
					return null; // 如果不是字符串或为空，返回 null
				}

				var xml, tmp; // 声明变量用于保存解析后的 XML 文档和临时对象

				try {
					if (window.DOMParser) { // 标准浏览器支持
						tmp = new DOMParser(); // 创建一个 DOMParser 实例
						xml = tmp.parseFromString(data, "text/xml"); // 使用 DOMParser 解析字符串为 XML
					} else { // IE 浏览器支持
						xml = new ActiveXObject("Microsoft.XMLDOM"); // 创建 ActiveXObject 实例
						xml.async = "false"; // 设置异步为 false，以同步解析
						xml.loadXML(data); // 加载 XML 字符串
					}
				} catch (e) {
					xml = undefined; // 捕获异常并将 xml 设置为 undefined
				}

				// 检查解析结果是否有效
				if (!xml || !xml.documentElement || xml.getElementsByTagName("parsererror").length) {
					// 如果没有根元素或者存在解析错误，则抛出错误
					jQuery.error("Invalid XML: " + data);
				}

				return xml; // 返回解析后的 XML 文档
			},

			// 空函数，用于占位或回调
			noop: function () {
			},

			// 在全局上下文中评估脚本
// 根据 Jim Driscoll 的发现进行的解决方案
// http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
			globalEval: function (data) {
				// 检查数据是否存在且不为空（使用正则表达式 rnotwhite 测试）
				if (data && rnotwhite.test(data)) {
					// 在 Internet Explorer 中使用 execScript
					// 使用匿名函数以确保上下文为 window，而不是 Firefox 中的 jQuery
					(window.execScript || function (data) {
						// 调用 window 上下文中的 eval 方法，以评估传入的数据
						window["eval"].call(window, data);
					})(data); // 执行脚本
				}
			},

// 将带有连字符的字符串转换为驼峰命名法；在 css 和 data 模块中使用
// 微软忘记了处理他们的供应商前缀 (#9572)
			camelCase: function (string) {
				// 用正则表达式将 'ms-' 前缀添加到字符串中，并将连字符后的字母转为大写
				return string.replace(rmsPrefix, "ms-").replace(rdashAlpha, fcamelCase);
			},

// 检查元素的节点名称是否与给定名称匹配（不区分大小写）
			nodeName: function (elem, name) {
				// 如果元素存在，且其节点名称（大写形式）与给定名称（大写形式）匹配，则返回 true
				return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
			},

			// args 仅供内部使用
			each: function (object, callback, args) {
				var name, i = 0,
					length = object.length, // 获取对象的长度
					isObj = length === undefined || jQuery.isFunction(object); // 判断是否为对象或函数

				// 如果提供了 args 参数
				if (args) {
					// 判断是否为对象，如果是对象（或函数）
					if (isObj) {
						// 遍历对象的每个属性
						for (name in object) {
							// 使用 apply 调用回调函数，传入当前对象和参数数组
							if (callback.apply(object[name], args) === false) {
								break; // 如果回调返回 false，则停止遍历
							}
						}
					} else {
						// 否则，遍历数组
						for (; i < length;) {
							// 同样使用 apply 调用回调函数，传入当前元素和参数数组
							if (callback.apply(object[i++], args) === false) {
								break; // 停止遍历条件同上
							}
						}
					}

					// 处理没有 args 参数的特殊情况，通常是最常见的用法
				} else {
					// 判断是否为对象
					if (isObj) {
						// 遍历对象的每个属性
						for (name in object) {
							// 使用 call 调用回调函数，传入当前属性名和属性值
							if (callback.call(object[name], name, object[name]) === false) {
								break; // 停止遍历条件同上
							}
						}
					} else {
						// 否则，遍历数组
						for (; i < length;) {
							// 使用 call 调用回调函数，传入当前索引和元素
							if (callback.call(object[i], i, object[i++]) === false) {
								break; // 停止遍历条件同上
							}
						}
					}
				}

				return object; // 返回原始对象，方便链式调用
			},

			// 使用原生的 String.trim 函数（如果可用）
			trim: trim ?
				function (text) {
					// 如果文本为 null，则返回空字符串
					return text == null ?
						"" :
						// 调用原生的 trim 方法来去除字符串两端的空白
						trim.call(text);
				} :

				// 否则使用自定义的去空白功能
				function (text) {
					// 如果文本为 null，则返回空字符串
					return text == null ?
						"" :
						// 将文本转换为字符串并使用正则表达式去除两端的空白
						text.toString().replace(trimLeft, "").replace(trimRight, "");
				},

// results 仅供内部使用
			makeArray: function (array, results) {
				var ret = results || []; // 如果提供了 results，使用它；否则创建一个新的数组

				if (array != null) { // 检查 array 是否不为 null
					// 获取 array 的类型
					var type = jQuery.type(array);

					// 如果 array 没有 length 属性，或者是字符串、函数、正则表达式或窗口对象
					if (array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow(array)) {
						// 将 array 直接推入结果数组
						push.call(ret, array);
					} else {
						// 否则，合并 array 的元素到结果数组中
						jQuery.merge(ret, array);
					}
				}

				return ret; // 返回处理后的结果数组
			},

			// 在数组中查找指定元素的位置
			inArray: function (elem, array, i) {
				var len;

				// 检查传入的数组是否存在
				if (array) {
					// 如果支持原生的 indexOf 方法
					if (indexOf) {
						// 使用原生 indexOf 方法查找元素并返回索引
						return indexOf.call(array, elem, i);
					}

					len = array.length; // 获取数组长度
					// 根据传入的索引 i 进行处理，支持负索引
					i = i ? i < 0 ? Math.max(0, len + i) : i : 0;

					// 遍历数组，查找与 elem 相等的元素
					for (; i < len; i++) {
						// 跳过稀疏数组（即未定义的索引）
						if (i in array && array[i] === elem) {
							return i; // 找到元素，返回其索引
						}
					}
				}

				return -1; // 没有找到元素，返回 -1
			},

// 合并两个数组
			merge: function (first, second) {
				var i = first.length, // 获取第一个数组的当前长度
					j = 0; // 初始化第二个数组的索引

				// 检查第二个参数是否为数组（即拥有 length 属性的对象）
				if (typeof second.length === "number") {
					// 遍历 second 数组，将其元素添加到 first 数组中
					for (var l = second.length; j < l; j++) {
						first[i++] = second[j]; // 将 second 的元素推入 first
					}
				} else {
					// 如果 second 不是一个有效的数组，使用 while 循环逐个添加元素
					while (second[j] !== undefined) {
						first[i++] = second[j++]; // 添加元素直至遇到 undefined
					}
				}

				first.length = i; // 更新 first 数组的长度

				return first; // 返回合并后的数组
			},

			// 定义一个 grep 函数，用于过滤数组中的元素
			grep: function (elems, callback, inv) {
				var ret = [], // 初始化一个空数组，用于保存符合条件的元素
					retVal; // 用于存储回调函数的返回值

				inv = !!inv; // 将 inv 转换为布尔值，确保其为 true 或 false

				// 遍历传入的数组 elems
				for (var i = 0, length = elems.length; i < length; i++) {
					// 调用回调函数，传入当前元素及其索引，并将返回值转换为布尔值
					retVal = !!callback(elems[i], i);

					// 根据 inv 的值决定是否加入 ret 数组
					if (inv !== retVal) {
						ret.push(elems[i]); // 如果 inv 与 retVal 不同，则将当前元素添加到结果数组中
					}
				}

				return ret; // 返回符合条件的元素数组
			},

			// arg 仅供内部使用
			map: function (elems, callback, arg) {
				var value, // 用于存储回调函数返回的值
					key, // 用于遍历对象时的键
					ret = [], // 初始化一个空数组，用于保存结果
					i = 0, // 循环计数器
					length = elems.length, // 获取传入元素的长度
					// 检查 elems 是否为数组或 jQuery 对象
					isArray = elems instanceof jQuery ||
						(length !== undefined && typeof length === "number" &&
							((length > 0 && elems[0] && elems[length - 1]) ||
								length === 0 ||
								jQuery.isArray(elems)));

				// 如果 elems 是数组或类数组对象
				if (isArray) {
					// 遍历数组，调用回调函数，并处理每个元素
					for (; i < length; i++) {
						value = callback(elems[i], i, arg); // 调用回调函数，传入当前元素、索引和 arg

						if (value != null) { // 检查返回值是否不为 null 或 undefined
							ret[ret.length] = value; // 将有效的返回值添加到结果数组中
						}
					}

					// 如果 elems 是对象
				} else {
					// 遍历对象的每个键
					for (key in elems) {
						value = callback(elems[key], key, arg); // 调用回调函数，传入当前属性值、键和 arg

						if (value != null) { // 检查返回值是否不为 null 或 undefined
							ret[ret.length] = value; // 将有效的返回值添加到结果数组中
						}
					}
				}

				// 扁平化任何嵌套数组，并返回结果数组
				return ret.concat.apply([], ret);
			},

			// 全局唯一标识符（GUID）计数器，用于对象
			guid: 1,

// 将函数绑定到指定的上下文，且可选地部分应用参数
			proxy: function (fn, context) {
				// 检查 context 是否为字符串，如果是，则将 fn 的相应方法作为目标函数
				if (typeof context === "string") {
					var tmp = fn[context]; // 获取 fn 对象中 context 属性对应的方法
					context = fn; // 将上下文设置为 fn
					fn = tmp; // 将 fn 更新为该属性方法
				}

				// 快速检查目标函数是否可以调用，若不可调用则返回 undefined
				if (!jQuery.isFunction(fn)) {
					return undefined; // 如果 fn 不是函数，返回 undefined
				}

				// 模拟 bind 方法，创建一个代理函数
				var args = slice.call(arguments, 2), // 获取除了前两个参数外的其他所有参数
					proxy = function () {
						// 在代理函数中调用原函数，并将上下文和参数传入
						return fn.apply(context, args.concat(slice.call(arguments)));
					};

				// 将代理函数的 guid 设置为原始函数的 guid，这样可以通过该 guid 移除代理
				proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++; // 确保每个函数都有一个唯一的 guid

				return proxy; // 返回代理函数
			},

			// 多功能方法，用于获取和设置集合中的值
// 值可以在函数的情况下选择性地被执行
			access: function (elems, fn, key, value, chainable, emptyGet, pass) {
				var exec, // 用于判断是否执行函数值
					bulk = key == null, // 判断是否为批量操作，如果 key 为 null 则为批量操作
					i = 0,
					length = elems.length; // 获取元素集合的长度

				// 设置多个值
				if (key && typeof key === "object") {
					for (i in key) {
						// 对于对象中的每个键，递归调用 access 方法设置值
						jQuery.access(elems, fn, i, key[i], 1, emptyGet, value);
					}
					chainable = 1; // 设置链式调用标志

					// 设置单个值
				} else if (value !== undefined) {
					// 如果没有传递 pass 参数且 value 是一个函数，则执行该函数
					exec = pass === undefined && jQuery.isFunction(value);

					if (bulk) {
						// 批量操作仅在执行函数值时进行迭代
						if (exec) {
							exec = fn; // 保存原始的函数
							// 将 fn 替换为一个新的函数，该函数将在每个元素上调用 exec
							fn = function (elem, key, value) {
								return exec.call(jQuery(elem), value);
							};

							// 否则，对整个集合直接运行
						} else {
							fn.call(elems, value); // 通过 fn 函数设置所有元素的值
							fn = null; // 将 fn 设为 null，表示不再需要它
						}
					}

					if (fn) {
						// 遍历 elements 数组，为每个元素调用 fn 函数，并传入相应的参数
						for (; i < length; i++) {
							fn(elems[i], key, exec ? value.call(elems[i], i, fn(elems[i], key)) : value, pass);
						}
					}

					chainable = 1; // 设置链式调用标志
				}

				// 返回元素集合或获取值
				return chainable ?
					elems : // 如果是链式调用，返回 elems
					bulk ?
						fn.call(elems) : // 如果是批量操作，则获取所有元素的值
						length ? fn(elems[0], key) : emptyGet; // 获取第一个元素的值，或者返回 emptyGet
			},

			now: function () {
				// 返回当前时间的时间戳（自1970年1月1日以来的毫秒数）
				return (new Date()).getTime();
			},

// 使用 jQuery.browser 已被认为不推荐使用。
// 更多详细信息请参见 http://docs.jquery.com/Utilities/jQuery.browser
			uaMatch: function (ua) {
				// 将用户代理字符串转为小写字母
				ua = ua.toLowerCase();

				// 匹配用户代理中的浏览器信息
				var match = rwebkit.exec(ua) ||  // 检查是否为 WebKit 引擎
					ropera.exec(ua) ||           // 检查是否为 Opera 浏览器
					rmsie.exec(ua) ||            // 检查是否为 Internet Explorer
					ua.indexOf("compatible") < 0 && rmozilla.exec(ua) ||  // 检查是否为 Mozilla 浏览器
					[];  // 如果没有匹配项，则返回空数组

				// 返回一个包含浏览器名称和版本号的对象
				return {browser: match[1] || "", version: match[2] || "0"};
			},

			sub: function () {
				// 定义一个新的 jQuery 子类
				function jQuerySub(selector, context) {
					// 返回一个新的 jQuerySub 实例
					return new jQuerySub.fn.init(selector, context);
				}

				// 扩展 jQuerySub，使其继承 jQuery 的属性和方法
				jQuery.extend(true, jQuerySub, this);
				jQuerySub.superclass = this;  // 保存父类引用
				jQuerySub.fn = jQuerySub.prototype = this();  // 设置原型链

				// 设置构造函数
				jQuerySub.fn.constructor = jQuerySub;
				jQuerySub.sub = this.sub;  // 继承子类方法

				// 初始化方法，处理上下文参数
				jQuerySub.fn.init = function init(selector, context) {
					// 如果 context 是 jQuery 实例且不是 jQuerySub 实例，则转换为 jQuerySub 实例
					if (context && context instanceof jQuery && !(context instanceof jQuerySub)) {
						context = jQuerySub(context);
					}

					// 调用父类的初始化方法
					return jQuery.fn.init.call(this, selector, context, rootjQuerySub);
				};

				// 设置初始化原型
				jQuerySub.fn.init.prototype = jQuerySub.fn;

				// 创建一个新的 jQuerySub 实例以作为根
				var rootjQuerySub = jQuerySub(document);
				return jQuerySub;  // 返回新的 jQuerySub 类
			},

			browser: {}  // 定义一个空对象以存放浏览器相关的信息
		});

// 填充 class2type 映射表
		jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
			// 将 JavaScript 数据类型的字符串映射到对应的小写名称
			class2type[ "[object " + name + "]" ] = name.toLowerCase();
		});

// 匹配用户代理信息
		browserMatch = jQuery.uaMatch( userAgent );
		if ( browserMatch.browser ) {
			// 如果找到浏览器类型，则将其标记为 true，并设置版本号
			jQuery.browser[ browserMatch.browser ] = true;
			jQuery.browser.version = browserMatch.version;
		}

// 已被弃用，使用 jQuery.browser.webkit 替代
		if ( jQuery.browser.webkit ) {
			// 如果是 WebKit 浏览器，则标记为 Safari
			jQuery.browser.safari = true;
		}

// 对于 IE，不会将非断行空格与 \s 匹配
		if ( rnotwhite.test( "\xA0" ) ) {
			// 设置左侧和右侧的 trim 正则表达式，以去除空格和非断行空格
			trimLeft = /^[\s\xA0]+/;  // 匹配开头的空格和非断行空格
			trimRight = /[\s\xA0]+$/;  // 匹配结尾的空格和非断行空格
		}

// 所有 jQuery 对象都应指向这个根 jQuery 实例
		rootjQuery = jQuery(document);

// 文档就绪方法的清理函数
		if ( document.addEventListener ) {
			// 如果支持 addEventListener 方法
			DOMContentLoaded = function() {
				// 移除 DOMContentLoaded 事件监听
				document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
				// 调用 jQuery 的就绪方法
				jQuery.ready();
			};

		} else if ( document.attachEvent ) {
			// 如果支持 attachEvent 方法（主要针对 IE）
			DOMContentLoaded = function() {
				// 确保文档状态为完整（complete），以避免 IE 过于积极的操作
				if ( document.readyState === "complete" ) {
					// 移除 onreadystatechange 事件监听
					document.detachEvent( "onreadystatechange", DOMContentLoaded );
					// 调用 jQuery 的就绪方法
					jQuery.ready();
				}
			};
		}

// 检查 DOM 是否准备就绪，专门针对 Internet Explorer
		function doScrollCheck() {
			if ( jQuery.isReady ) {
				// 如果 jQuery 已经准备好，则直接返回
				return;
			}

			try {
				// 如果使用的是 IE，采用 Diego Perini 的技巧来检查内容加载
				// 参考链接: http://javascript.nwbox.com/IEContentLoaded/
				document.documentElement.doScroll("left");
			} catch(e) {
				// 如果出现异常，设置延时调用 doScrollCheck 函数，以继续检查
				setTimeout( doScrollCheck, 1 );
				return;
			}

			// 一旦 DOM 加载完毕，执行所有等待中的函数
			jQuery.ready();
		}

// 返回 jQuery 对象（这部分通常是立即调用的函数表达式的一部分）
		return jQuery;

	})();

// 字符串到对象的标志格式缓存
	var flagsCache = {};

// 将字符串格式的标志转换为对象格式，并存储在缓存中
	function createFlags( flags ) {
		var object = flagsCache[ flags ] = {}, // 创建一个新的对象并存入缓存
			i, length;
		// 将传入的字符串按空格分割成数组
		flags = flags.split( /\s+/ );
		for ( i = 0, length = flags.length; i < length; i++ ) {
			// 遍历每个标志，将其作为对象的属性，值为 true
			object[ flags[i] ] = true;
		}
		return object; // 返回转换后的对象
	}


/*
 * 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 ) {

		// 将字符串格式的标志转换为对象格式
		// 首先在缓存中检查
		flags = flags ? ( flagsCache[ flags ] || createFlags( flags ) ) : {};

		var // 实际的回调列表
			list = [],
			// 用于重复调用的堆栈
			stack = [],
			// 最后一次触发的值（用于不可遗忘列表）
			memory,
			// 标记以知晓列表是否已经触发
			fired,
			// 标记以知晓列表是否正在触发中
			firing,
			// 第一个要触发的回调（由 add 和 fireWith 内部使用）
			firingStart,
			// 触发时循环的结束
			firingLength,
			// 当前正在执行的回调索引（可被 remove 修改）
			firingIndex,
			// 向列表添加一个或多个回调的函数
			add = function( args ) {
				var i,
					length,
					elem,
					type,
					actual;
				// 遍历传入的参数数组
				for ( i = 0, length = args.length; i < length; i++ ) {
					elem = args[ i ]; // 获取当前元素
					type = jQuery.type( elem ); // 检查元素类型
					if ( type === "array" ) {
						// 如果元素是数组，递归调用 add 函数
						add( elem );
					} else if ( type === "function" ) {
						// 如果元素是函数且不是唯一模式下，且回调不在列表中，则添加到列表
						if ( !flags.unique || !self.has( elem ) ) {
							list.push( elem ); // 将函数添加到回调列表中
						}
					}
				}
			};

		// 执行回调函数
		fire = function( context, args ) {
			args = args || []; // 确保 args 是一个数组，如果没有传入则初始化为空数组
			memory = !flags.memory || [ context, args ]; // 根据 flags.memory 标志决定是否记录触发的上下文和参数
			fired = true; // 标记为已触发
			firing = true; // 标记为正在触发
			firingIndex = firingStart || 0; // 初始化当前索引，firingStart 为 0 或之前保存的值
			firingStart = 0; // 重置触发开始的位置
			firingLength = list.length; // 获取回调列表的长度

			// 遍历回调列表并执行每个函数
			for ( ; list && firingIndex < firingLength; firingIndex++ ) {
				// 执行当前索引的回调函数，并传递上下文和参数
				if ( list[ firingIndex ].apply( context, args ) === false && flags.stopOnFalse ) {
					memory = true; // 如果返回 false 且设置了 stopOnFalse，标记为中止
					break; // 中止循环
				}
			}

			firing = false; // 结束触发状态

			if ( list ) { // 如果回调列表存在
				if ( !flags.once ) { // 如果未设置一次性标志
					if ( stack && stack.length ) { // 检查堆栈是否存在且有元素
						memory = stack.shift(); // 从堆栈中取出下一个要触发的记忆（上下文和参数）
						self.fireWith( memory[ 0 ], memory[ 1 ] ); // 以新的上下文和参数再次触发回调
					}
				} else if ( memory === true ) { // 如果 memory 为 true，表示触发完成
					self.disable(); // 禁用回调列表
				} else {
					list = []; // 在一次性情况下清空回调列表
				}
			}
		},

			// 实际的回调对象
			self = {
				// 添加一个回调或一组回调到列表中
				add: function() {
					if ( list ) { // 检查回调列表是否存在
						var length = list.length; // 获取当前回调列表的长度
						add( arguments ); // 调用 add 函数，将传入的参数添加到回调列表

						// 我们需要将回调添加到当前正在触发的批次吗？
						if ( firing ) {
							firingLength = list.length; // 如果正在触发，更新当前回调列表的长度
							// 如果有记忆值，且当前没有触发，
							// 则应该立即调用回调，除非之前的触发被中止（stopOnFalse）
						} else if ( memory && memory !== true ) {
							firingStart = length; // 设置触发开始的位置为当前列表的长度
							fire( memory[ 0 ], memory[ 1 ] ); // 立即触发回调，使用记忆中的上下文和参数
						}
					}
					return this; // 返回当前对象，以支持链式调用
				},

				// 从列表中移除一个回调
				remove: function() {
					if ( list ) { // 检查回调列表是否存在
						var args = arguments, // 获取传入的参数
							argIndex = 0, // 当前参数索引
							argLength = args.length; // 参数的总长度

						// 遍历所有传入的参数
						for ( ; argIndex < argLength ; argIndex++ ) {
							// 对于每个参数，遍历回调列表
							for ( var i = 0; i < list.length; i++ ) {
								// 如果当前参数与回调列表中的某个回调相等
								if ( args[ argIndex ] === list[ i ] ) {
									// 处理 firingIndex 和 firingLength 的更新
									if ( firing ) {
										// 当前正在触发，并且要移除的回调在触发列表之前
										if ( i <= firingLength ) {
											firingLength--; // 更新触发长度
											if ( i <= firingIndex ) {
												firingIndex--; // 更新触发索引
											}
										}
									}
									// 移除该元素
									list.splice( i--, 1 ); // 从列表中移除元素，并将索引减一以调整循环

									// 如果设置了唯一性标志，那么只需移除一次
									if ( flags.unique ) {
										break; // 跳出当前循环，不再检查其他相同的回调
									}
								}
							}
						}
					}
					return this; // 返回当前对象，以支持链式调用
				},

				// 控制特定回调是否在列表中
				has: function( fn ) {
					if ( list ) { // 检查回调列表是否存在
						var i = 0,
							length = list.length; // 获取列表的长度
						// 遍历回调列表
						for ( ; i < length; i++ ) {
							// 如果找到与给定回调相同的项，则返回 true
							if ( fn === list[ i ] ) {
								return true;
							}
						}
					}
					return false; // 如果没有找到，返回 false
				},

// 从列表中移除所有回调
				empty: function() {
					list = []; // 将列表清空
					return this; // 返回当前对象，以支持链式调用
				},

// 使列表不再执行任何操作
				disable: function() {
					list = stack = memory = undefined; // 将列表、栈和内存设为 undefined
					return this; // 返回当前对象，以支持链式调用
				},

// 检查是否已禁用
				disabled: function() {
					return !list; // 如果列表不存在，则返回 true
				},

// 锁定列表，使其处于当前状态
				lock: function() {
					stack = undefined; // 清空栈
					// 如果没有内存或内存为 true，则禁用列表
					if ( !memory || memory === true ) {
						self.disable(); // 调用 disable 方法
					}
					return this; // 返回当前对象，以支持链式调用
				},

// 检查列表是否被锁定
				locked: function() {
					return !stack; // 如果栈不存在，则返回 true
				},

				// 使用给定的上下文和参数调用所有回调
				fireWith: function( context, args ) {
					if ( stack ) { // 检查栈是否存在
						if ( firing ) { // 检查是否正在执行回调
							// 如果当前正在执行且未设置一次性标志，推入新的上下文和参数到栈中
							if ( !flags.once ) {
								stack.push( [ context, args ] );
							}
						} else if ( !( flags.once && memory ) ) { // 如果未设置一次性标志且没有内存记录
							fire( context, args ); // 立即调用回调函数
						}
					}
					return this; // 返回当前对象，以支持链式调用
				},

// 使用给定的参数调用所有回调
				fire: function() {
					self.fireWith( this, arguments ); // 调用 fireWith 方法，传入当前上下文和参数
					return this; // 返回当前对象，以支持链式调用
				},

// 检查回调是否至少已被调用过一次
				fired: function() {
					return !!fired; // 将 fired 转换为布尔值返回，表明回调是否已被调用
				}
			};

		return self;
	};



	// 静态引用 slice 方法，用于数组切片
	var sliceDeferred = [].slice;

	jQuery.extend({
		// 定义 Deferred 函数，用于创建一个新的延迟对象
		Deferred: function( func ) {
			// 创建三个回调列表：成功、失败和进度
			var doneList = jQuery.Callbacks("once memory"), // 成功回调列表，只能被调用一次，并保留内存
				failList = jQuery.Callbacks("once memory"), // 失败回调列表，同样只调用一次并保留内存
				progressList = jQuery.Callbacks("memory"), // 进度回调列表，可以多次调用并保留内存
				state = "pending", // 初始状态为“待处理”
				lists = {
					resolve: doneList, // 将成功列表绑定到 resolve
					reject: failList, // 将失败列表绑定到 reject
					notify: progressList // 将进度列表绑定到 notify
				},
				promise = { // 定义 promise 对象
					done: doneList.add, // 添加成功回调的方法
					fail: failList.add, // 添加失败回调的方法
					progress: progressList.add, // 添加进度回调的方法

					state: function () { // 返回当前状态的方法
						return state; // 返回状态
					},

					// 已废弃的方法，检查是否已经解决
					isResolved: doneList.fired, // 检查成功回调是否已被调用
					isRejected: failList.fired, // 检查失败回调是否已被调用

					then: function (doneCallbacks, failCallbacks, progressCallbacks) {
						// 链式调用，将相应的回调添加到 deferred 对象
						deferred.done(doneCallbacks).fail(failCallbacks).progress(progressCallbacks);
						return this; // 返回当前对象，以支持链式调用
					},
					always: function () {
						// 无论成功或失败都执行的回调
						deferred.done.apply(deferred, arguments).fail.apply(deferred, arguments);
						return this; // 返回当前对象，以支持链式调用
					},

					pipe: function (fnDone, fnFail, fnProgress) {
						// 创建一个新的延迟对象，允许链式调用
						return jQuery.Deferred(function (newDefer) {
							// 遍历每个处理程序（成功、失败和进度）
							jQuery.each({
								done: [fnDone, "resolve"], // 成功回调及其对应的操作
								fail: [fnFail, "reject"],   // 失败回调及其对应的操作
								progress: [fnProgress, "notify"] // 进度回调及其对应的操作
							}, function (handler, data) {
								var fn = data[0], // 获取回调函数
									action = data[1], // 获取对应的操作
									returned; // 用于存储返回值

								// 检查 fn 是否为一个有效的函数
								if (jQuery.isFunction(fn)) {
									// 为当前的 deferred 添加相应的回调处理
									deferred[handler](function () {
										returned = fn.apply(this, arguments); // 调用该函数并获取返回值

										// 检查返回值是否是一个具有 promise 方法的对象
										if (returned && jQuery.isFunction(returned.promise)) {
											// 若是，则将新的 deferred 的 resolve/reject/notify 方法与返回的 promise 绑定
											returned.promise().then(newDefer.resolve, newDefer.reject, newDefer.notify);
										} else {
											// 否则，直接将返回值传递到新的 deferred
											newDefer[action + "With"](this === deferred ? newDefer : this, [returned]);
										}
									});
								} else {
									// 如果 fn 不是函数，则直接将新的 deferred 的操作与原 deferred 的操作绑定
									deferred[handler](newDefer[action]);
								}
							});
						}).promise(); // 返回新的 promise 对象
					},

// 获取当前 deferred 的 promise
// 如果提供了 obj，则将 promise 方法添加到该对象上
					promise: function (obj) {
						if (obj == null) {
							obj = promise; // 如果没有提供对象，则使用当前的 promise
						} else {
							// 将 promise 中的方法复制到提供的对象中
							for (var key in promise) {
								obj[key] = promise[key];
							}
						}
						return obj; // 返回最终的对象
					}
				},
				deferred = promise.promise({}),
				key;

			// 遍历 lists 对象中的每个 key
			for (key in lists) {
				// 将 lists 中相应的 fire 方法赋值给 deferred 对象的对应属性
				deferred[key] = lists[key].fire;
				// 将 lists 中的 fireWith 方法赋值给 deferred 对象的对应属性，允许带上下文和参数调用
				deferred[key + "With"] = lists[key].fireWith;
			}

// 处理状态变化
			deferred.done(function () {
				// 当执行完所有成功回调后，将状态设置为 "resolved"
				state = "resolved";
			}, failList.disable, progressList.lock).fail(function () {
				// 当执行失败回调时，将状态设置为 "rejected"
				state = "rejected";
			}, doneList.disable, progressList.lock);

// 如果提供了 func 函数，则调用它，并将 deferred 作为上下文传入
			if (func) {
				func.call(deferred, deferred);
			}

// 返回 deferred 对象，表示所有操作已完成
			return deferred;
		},

		// Deferred 辅助函数
		when: function( firstParam ) {
			// 将传入的参数转换为数组形式，取出所有参数
			var args = sliceDeferred.call( arguments, 0 ),
				i = 0,
				length = args.length, // 参数长度
				pValues = new Array( length ), // 用于存储进度值的数组
				count = length, // 计数器，用于跟踪已解析的 promise 数量
				pCount = length, // 另一个计数器，可能用于未来扩展
				deferred = length <= 1 && firstParam && jQuery.isFunction( firstParam.promise ) ?
					// 如果只有一个参数且它是一个可执行 promise 的对象，则使用这个对象；否则创建新的 Deferred 对象
					firstParam :
					jQuery.Deferred(),
				promise = deferred.promise(); // 获取与 deferred 相关联的 promise 对象

			// 定义解析函数，用于处理成功回调
			function resolveFunc( i ) {
				return function( value ) {
					// 将对应索引的参数值设置为传入的 value，如果有多个参数则存储为数组
					args[ i ] = arguments.length > 1 ? sliceDeferred.call( arguments, 0 ) : value;
					// 减少计数器，当所有 promise 都已解决时，调用 resolve
					if ( !( --count ) ) {
						deferred.resolveWith( deferred, args ); // 触发 deferred 的 resolved 状态，并传入所有结果
					}
				};
			}

			// 定义进度处理函数，用于处理进度通知
			function progressFunc( i ) {
				return function( value ) {
					// 将进度值存储在 pValues 数组中
					pValues[ i ] = arguments.length > 1 ? sliceDeferred.call( arguments, 0 ) : value;
					// 通知 promise 的进度更新
					deferred.notifyWith( promise, pValues ); // 发送当前进度值给观察者
				};
			}

			if ( length > 1 ) { // 如果参数个数大于1
				for ( ; i < length; i++ ) { // 遍历所有参数
					// 检查当前参数是否为一个有 promise 方法的对象
					if ( args[ i ] && args[ i ].promise && jQuery.isFunction( args[ i ].promise ) ) {
						// 调用当前参数的 promise 方法，并处理成功和失败的回调
						// resolveFunc(i) 用于成功时的处理，deferred.reject 用于失败时的处理，progressFunc(i) 用于进度更新的处理
						args[ i ].promise().then( resolveFunc(i), deferred.reject, progressFunc(i) );
					} else {
						// 如果当前参数不是一个有效的 promise，则计数器减一
						--count;
					}
				}
				// 如果 count 计数器为0，表示所有的 promise 都已解决
				if ( !count ) {
					// 将 args 中的所有结果传递给 deferred 的 resolved 状态，完成整个过程
					deferred.resolveWith( deferred, args );
				}
			} else if ( deferred !== firstParam ) { // 如果只有一个参数且它不是最初传入的 firstParam
				// 将 firstParam 的值作为数组传递给 deferred 的 resolved 状态
				deferred.resolveWith( deferred, length ? [ firstParam ] : [] );
			}
// 最后返回与 deferred 相关联的 promise 对象
			return promise;

		}
});




	jQuery.support = (function() { // 定义 jQuery.support 作为一个立即执行函数表达式 (IIFE)

		var support,        // 用于存储支持的特性
			all,            // 用于存储 div 中的所有元素
			a,              // 存储第一个 <a> 元素
			select,         // 将来可能用于存储 <select> 元素
			opt,            // 将来可能用于存储 <option> 元素
			input,          // 将来可能用于存储 <input> 元素
			fragment,       // 将来可能用于存储文档片段
			tds,            // 将来可能用于存储 <td> 元素
			events,         // 将来可能用于存储事件支持情况
			eventName,      // 将来可能用于存储事件名称
			i,              // 循环计数器
			isSupported,    // 用于指示某些特性的支持状态
			div = document.createElement("div"), // 创建一个新的 div 元素
			documentElement = document.documentElement; // 获取文档根元素

		// 进行初步测试
		div.setAttribute("className", "t"); // 设置 div 的 className 属性（IE 特有）
		// 设置 div 的 innerHTML，包括一些元素和属性
		div.innerHTML = "   <link/><table></table><a href='/a' style='top:1px;float:left;opacity:.55;'>a</a><input type='checkbox'/>";

		all = div.getElementsByTagName("*"); // 获取 div 中的所有元素
		a = div.getElementsByTagName("a")[0]; // 获取 div 中的第一个 <a> 元素

		// 如果无法获取基本的测试支持，则返回一个空对象
		if ( !all || !all.length || !a ) {
			return {};
		}


		// 第一批支持测试
		select = document.createElement("select"); // 创建一个 <select> 元素
		opt = select.appendChild(document.createElement("option")); // 在 <select> 中添加一个 <option> 元素
		input = div.getElementsByTagName("input")[0]; // 获取之前创建的 div 中的第一个 <input> 元素

		support = { // 初始化 support 对象，用于存储检测到的特性支持情况

			// IE 在使用 .innerHTML 时会去掉前导空白
			leadingWhitespace: (div.firstChild.nodeType === 3), // 检查 div 的第一个子节点是否为文本节点（nodeType === 3）

			// 确保 tbody 元素不会被自动插入
			// IE 会在空表格中插入它们
			tbody: !div.getElementsByTagName("tbody").length, // 检查 div 中是否存在 <tbody> 元素

			// 确保 link 元素能通过 innerHTML 正确序列化
			// 这在 IE 中需要一个包装元素
			htmlSerialize: !!div.getElementsByTagName("link").length, // 检查 div 中是否存在 <link> 元素并转换为布尔值

			// 从 getAttribute 获取样式信息
			// （IE 使用 .cssText 代替）
			style: /top/.test(a.getAttribute("style")), // 检查 <a> 元素的 style 属性中是否包含 "top"

			// 确保 URL 不会被修改
			// （IE 默认会对其进行规范化）
			hrefNormalized: (a.getAttribute("href") === "/a"), // 检查 <a> 元素的 href 是否为指定的值

			// 确保元素透明度存在
			// （IE 使用 filter 代替）
			// 使用正则表达式来解决 WebKit 问题
			opacity: /^0.55/.test(a.style.opacity), // 检查 <a> 元素的 opacity 样式是否为 0.55

			// 验证样式浮动的存在
			// （IE 使用 styleFloat 而不是 cssFloat）
			cssFloat: !!a.style.cssFloat, // 检查 <a> 元素的 cssFloat 是否存在并转换为布尔值

			// 确保如果未指定复选框的值，则默认为 "on"
			// （WebKit 默认为 ""）
			checkOn: (input.value === "on"), // 检查 input 元素的值是否为 "on"

			// 确保默认选中的选项具有有效的 selected 属性。
			// （WebKit 默认情况下为 false，而 IE 也是如此，如果它在 optgroup 中）
			optSelected: opt.selected, // 检查选项是否被选中

			// 测试 camelCase 类的 setAttribute 是否有效。如果有效，则在进行 get/setAttribute 时需要 attrFixes（适用于 IE6/7）
			getSetAttribute: div.className !== "t", // 检查 div 的 className 是否不等于 "t"

			// 测试表单上的 enctype 支持 (#6743)
			enctype: !!document.createElement("form").enctype, // 检查新的表单元素是否具有 enctype 属性并转换为布尔值

			// 确保克隆一个 HTML5 元素不会导致问题
			// 当 outerHTML 未定义时，这仍然有效
			html5Clone: document.createElement("nav").cloneNode(true).outerHTML !== "<:nav></:nav>", // 检查克隆的 <nav> 元素的 outerHTML 是否正确

			// 以下将稍后定义
			submitBubbles: true, // 提交事件是否气泡
			changeBubbles: true, // 改变事件是否气泡
			focusinBubbles: false, // focusin 事件是否气泡
			deleteExpando: true, // 是否支持 deleteExpando
			noCloneEvent: true, // 克隆事件是否正常
			inlineBlockNeedsLayout: false, // inline-block 布局需求
			shrinkWrapBlocks: false, // 收缩包装块是否有效
			reliableMarginRight: true, // margin-right 是否可靠
			pixelMargin: true // 像素边距支持情况
		};

            // jQuery.boxModel 在 1.3 中已弃用，使用 jQuery.support.boxModel 代替
			jQuery.boxModel = support.boxModel = (document.compatMode === "CSS1Compat"); // 判断文档是否处于兼容模式并赋值给 boxModel


		// 确保禁用选择框中的选项不会被标记为禁用
// （WebKit 会将它们标记为禁用）
		select.disabled = true; // 将选择框设置为禁用
		support.optDisabled = !opt.disabled; // 检查选项是否未被禁用

// 测试是否可以从元素中删除一个扩展属性（expando）
// 在 Internet Explorer 中会失败
		try {
			delete div.test; // 尝试删除 div 的 test 属性
		} catch(e) {
			support.deleteExpando = false; // 如果抛出异常，则说明不支持删除 expando
		}

// 检查是否存在 addEventListener 方法，如果没有，且可以使用 attachEvent 和 fireEvent
		if (!div.addEventListener && div.attachEvent && div.fireEvent) {
			// 为 div 绑定点击事件
			div.attachEvent("onclick", function() {
				// 克隆节点时不应该复制任何绑定的事件处理程序（IE 会错误地复制）
				support.noCloneEvent = false; // 如果事件处理程序被复制，则设为 false
			});
			div.cloneNode(true).fireEvent("onclick"); // 克隆节点并触发点击事件
		}

// 检查在添加到 DOM 后，单选按钮是否保留其值
		input = document.createElement("input"); // 创建一个新的 input 元素
		input.value = "t"; // 设置 input 的值为 "t"
		input.setAttribute("type", "radio"); // 将类型设置为 radio
		support.radioValue = input.value === "t"; // 检查 radio 的值是否保持为 "t"

// 将 checked 属性设置为已选中
		input.setAttribute("checked", "checked");

// #11217 - WebKit 在 checked 属性之后设置 name 时会丢失 checked 状态
		input.setAttribute("name", "t"); // 设置名称为 "t"
		div.appendChild(input); // 将 input 添加到 div 中
		fragment = document.createDocumentFragment(); // 创建一个文档片段
		fragment.appendChild(div.lastChild); // 将 div 中的最后一个子元素（即 input）添加到片段中

// WebKit 在克隆片段时不会正确复制 checked 状态
		support.checkClone = fragment.cloneNode(true).cloneNode(true).lastChild.checked; // 检查克隆的片段是否保持 checked 状态

// 检查一个未连接的复选框在添加到 DOM 后是否能保留其 checked 值为 true（IE6/7 特性）
		support.appendChecked = input.checked; // 检查 input 的 checked 状态
		fragment.removeChild(input); // 从片段中移除 input
		fragment.appendChild(div); // 将 div 添加回片段


		// 使用 Juriy Zaytsev 的技术
// http://perfectionkills.com/detecting-event-support-without-browser-sniffing/
// 我们只关心使用非标准事件系统的情况，
// 主要是在 IE 中。这里的短路操作帮助我们避免调用 eval（在 setAttribute 中），
// 因为这可能导致 CSP 出错。请参见：https://developer.mozilla.org/en/Security/CSP
		if ( div.attachEvent ) { // 检查 div 是否支持 attachEvent 方法
			// 循环检查特定的事件类型是否受支持
			for ( i in {
				submit: 1,  // 提交事件
				change: 1,  // 更改事件
				focusin: 1  // 聚焦进入事件
			}) {
				eventName = "on" + i; // 构建事件名称，例如 "onsubmit"
				isSupported = ( eventName in div ); // 检查事件名称是否在 div 的属性中
				if ( !isSupported ) { // 如果不受支持
					div.setAttribute( eventName, "return;" ); // 在 div 上设置相应的事件处理程序为 "return;"
					isSupported = ( typeof div[ eventName ] === "function" ); // 再次检查该事件处理程序是否为函数
				}
				support[ i + "Bubbles" ] = isSupported; // 将结果存储到 support 对象中
			}
		}

// 从文档片段中移除 div，以避免内存泄漏
		fragment.removeChild( div );

// 将变量设为 null，以避免在 IE 中的内存泄漏
		fragment = select = opt = div = input = null;


		// 在文档准备好时运行需要有 body 的测试
		jQuery(function() {
			// 声明变量
			var container, outer, inner, table, td, offsetSupport,
				marginDiv, conMarginTop, style, html, positionTopLeftWidthHeight,
				paddingMarginBorderVisibility, paddingMarginBorder,
				body = document.getElementsByTagName("body")[0]; // 获取页面的 body 元素

			// 检查是否存在 body，如果不存在，返回（例如在 frameset 文档中）
			if ( !body ) {
				return;
			}

			conMarginTop = 1; // 定义上边距为 1 像素
			paddingMarginBorder = "padding:0;margin:0;border:"; // 设置 padding、margin 和 border 的基础样式
			positionTopLeftWidthHeight = "position:absolute;top:0;left:0;width:1px;height:1px;"; // 定义一个绝对定位的小元素
			paddingMarginBorderVisibility = paddingMarginBorder + "0;visibility:hidden;"; // 隐藏元素的样式（无边距和可见性）
			style = "style='" + positionTopLeftWidthHeight + paddingMarginBorder + "5px solid #000;"; // 构建一个样式字符串，用于设置边框等属性
			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>"; // 创建含有 div 和 table 的 HTML 结构


			// 创建一个容器 div
			container = document.createElement("div");
			// 设置容器的样式，包括宽度、高度、位置和上边距
			container.style.cssText = paddingMarginBorderVisibility + "width:0;height:0;position:static;top:0;margin-top:" + conMarginTop + "px";
			// 将容器插入到 body 的最前面
			body.insertBefore(container, body.firstChild);

			// 构建测试元素 div
			div = document.createElement("div");
			// 将 div 添加到容器中
			container.appendChild(div);

			// 检查当表格单元格被设置为 display:none 时，
// 是否仍然可以获取 offsetWidth/Height，并且该行中还有其他可见的表格单元格。
// 如果可以获取，那么在确定一个元素是否直接通过 display:none 隐藏时，
// offsetWidth/Height 就不可靠了（如果父元素被隐藏，则使用 offset 仍然安全；
// 可查看问题 #4512 获取更多信息）.
// （只有 IE 8 会失败这个测试）
			div.innerHTML = "<table><tr><td style='" + paddingMarginBorder + "0;display:none'></td><td>t</td></tr></table>"; // 创建一个包含两个单元格的表格，第一个单元格设置为 display:none
			tds = div.getElementsByTagName("td"); // 获取所有的 td 元素
			isSupported = (tds[0].offsetHeight === 0); // 检查第一个单元格的 offsetHeight 是否为 0，以验证其是否被正确地隐藏

			tds[0].style.display = ""; // 将第一个单元格的 display 属性重置（使其可见）
			tds[1].style.display = "none"; // 将第二个单元格设置为不可见

// 检查空的表格单元格是否仍然有 offsetWidth/Height
// （IE <= 8 无法通过这个测试）
			support.reliableHiddenOffsets = isSupported && (tds[0].offsetHeight === 0); // 设置支持标志，确认第一单元格的 offsetHeight 是否仍为 0，表示隐藏效果仍然有效

			// 检查一个具有明确宽度且没有右外边距的 div 是否错误地
// 根据容器的宽度计算 margin-right。有关更多信息，请参见 bug #3333。
// 在 2011 年 2 月之前的 WebKit 版本中会失败。
// WebKit Bug 13343 - getComputedStyle 返回错误的 margin-right 值

			if ( window.getComputedStyle ) { // 检查浏览器是否支持 getComputedStyle 方法
			div.innerHTML = "";// 清空 div 的内容
			marginDiv = document.createElement( "div" ); // 创建一个新的 div 元素
			marginDiv.style.width = "0";// 设置新 div 的宽度为 0
			marginDiv.style.marginRight = "0";// 设置新 div 的右外边距为 0
			div.style.width = "2px";// 设置外部 div 的宽度为 2px
			div.appendChild( marginDiv );// 将新创建的 div 添加到外部 div 中
				// 检查 marginDiv 的 computed margin-right 是否为 0
			support.reliableMarginRight =
				( parseInt( ( window.getComputedStyle( marginDiv, null ) || { marginRight: 0 } ).marginRight, 10 ) || 0 ) === 0;
		}

			if (typeof div.style.zoom !== "undefined") { // 检查浏览器是否支持 zoom 属性
				// 检查原生块级元素在设置为 'inline' 并给予布局时，
				// 是否表现得像 inline-block 元素（IE < 8 会这样做）
				div.innerHTML = ""; // 清空 div 的内容
				div.style.width = div.style.padding = "1px"; // 设置宽度和内边距为 1px
				div.style.border = 0; // 将边框设置为 0
				div.style.overflow = "hidden"; // 设置溢出属性为隐藏
				div.style.display = "inline"; // 设置显示属性为 inline
				div.style.zoom = 1; // 设置 zoom 属性为 1，触发布局
				// 检查此时 div 的 offsetWidth 是否等于 3
				support.inlineBlockNeedsLayout = (div.offsetWidth === 3);

				// 检查具有布局的元素是否能收缩包裹其子元素
				// （IE 6 会这样做）
				div.style.display = "block"; // 将显示属性重置为 block
				div.style.overflow = "visible"; // 允许可见溢出
				div.innerHTML = "<div style='width:5px;'></div>"; // 向 div 中添加一个宽度为 5px 的子 div
				// 检查此时 div 的 offsetWidth 是否不等于 3
				support.shrinkWrapBlocks = (div.offsetWidth !== 3);
		}

		// 设置 div 的样式，包括位置、大小、内外边距和可见性等
		div.style.cssText = positionTopLeftWidthHeight + paddingMarginBorderVisibility;
// 设置 div 的内容为 html 字符串
		div.innerHTML = html;

// 获取 div 的第一个子元素，称为 outer
		outer = div.firstChild;
// 获取 outer 的第一个子元素，称为 inner
		inner = outer.firstChild;
// 获取 outer 的下一个兄弟元素的第一个子元素的第一个子元素，称为 td
		td = outer.nextSibling.firstChild.firstChild;

// 创建一个对象 offsetSupport 用于存储不同情况下的偏移支持信息
		offsetSupport = {
			// 检查 inner 元素的 offsetTop 是否不等于 5，表示不会添加边框
			doesNotAddBorder: ( inner.offsetTop !== 5 ),
			// 检查 td 元素的 offsetTop 是否等于 5，表示会为表格和单元格添加边框
			doesAddBorderForTableAndCells: ( td.offsetTop === 5 )
		};

// 将 inner 元素的定位设置为固定，并将顶部位置设置为 20px
		inner.style.position = "fixed";
		inner.style.top = "20px";

// Safari 浏览器在此处减去父元素的边框宽度（5px）
		offsetSupport.fixedPosition = ( inner.offsetTop === 20 || inner.offsetTop === 15 );

// 重置 inner 元素的定位和顶部样式
		inner.style.position = inner.style.top = "";

// 设置 outer 元素的溢出属性为隐藏，并将其定位设置为相对
		outer.style.overflow = "hidden";
		outer.style.position = "relative";

// 检查 inner 元素的 offsetTop 是否等于 -5，表示在 overflow 为 hidden 时减去边框
		offsetSupport.subtractsBorderForOverflowNotVisible = ( inner.offsetTop === -5 );

// 检查 body 的 offsetTop 是否不等于 conMarginTop，表示 margin 没有包含在 body 的偏移量中
		offsetSupport.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== conMarginTop );


		// 检查浏览器是否支持 window.getComputedStyle 方法，用于获取计算后的样式
		if ( window.getComputedStyle ) {
			// 设置 div 元素的上外边距为 1%
			div.style.marginTop = "1%";
			// 获取 div 的计算后样式并检查 marginTop 是否不等于 1%，以确定是否支持像素边距
			support.pixelMargin = ( window.getComputedStyle( div, null ) || { marginTop: 0 } ).marginTop !== "1%";
		}

// 检查 container 元素的样式对象是否定义了 zoom 属性
		if ( typeof container.style.zoom !== "undefined" ) {
			// 将 container 的 zoom 属性设置为 1，触发浏览器对这个元素进行缩放处理
			container.style.zoom = 1;
		}

// 从 body 中移除 container 元素
		body.removeChild( container );

// 清空 marginDiv、div 和 container 变量，以便释放内存
		marginDiv = div = container = null;

// 将 offsetSupport 对象的内容扩展到 support 对象中
		jQuery.extend( support, offsetSupport );
	});

// 返回 support 对象，包含有关不同偏移和样式支持的信息
		return support;
	})();





	// 正则表达式，用于检测字符串是否为有效的 JSON 对象或数组
	var rbrace = /^(?:\{.*\}|\[.*\])$/,
// 正则表达式，用于匹配大写字母
		rmultiDash = /([A-Z])/g;

// 扩展 jQuery 对象，添加新属性和方法
	jQuery.extend({
		// 用于缓存元素及其相关数据的对象
		cache: {},

		// 唯一标识符，每次调用会递增
		// 请谨慎使用
		uuid: 0,

		// 页面上每个 jQuery 实例的唯一标识符
		// 使用了随机数去除非数字字符，以匹配 rinlinejQuery
		expando: "jQuery" + ( jQuery.fn.jquery + Math.random() ).replace( /\D/g, "" ),

		// 以下元素如果尝试添加 expando 属性，会引发无法捕获的异常
		noData: {
			// 禁止在 embed 元素上设置 expando 属性
			"embed": true,
			// 除 Flash 外，禁止在所有对象上设置 expando 属性
			"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
			// 禁止在 applet 元素上设置 expando 属性
			"applet": true
		},

		// 检查指定元素是否包含数据
		hasData: function( elem ) {
			// 如果 elem 是一个节点，则从缓存中获取相应的数据
			// 否则直接从 elem 的 expando 属性中获取数据
			elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
			// 如果 elem 存在且不是空数据对象，则返回 true
			return !!elem && !isEmptyDataObject( elem );
		},

		// 定义 data 函数，用于在元素或对象上存储或获取数据
		data: function( elem, name, data, pvt /* 内部使用 */ ) {
			// 检查元素是否可以接受数据，如果不可以则返回
			if ( !jQuery.acceptData( elem ) ) {
				return;
			}

			var privateCache, thisCache, ret,
				internalKey = jQuery.expando, // 获取唯一标识符
				getByName = typeof name === "string", // 检查 name 是否为字符串

				// 处理 DOM 节点和 JS 对象的不同情况，因为 IE6-7
				// 无法在 DOM 和 JS 边界之间正确进行垃圾回收
				isNode = elem.nodeType, // 判断 elem 是否为 DOM 节点

				// 只有 DOM 节点需要全局 jQuery 缓存；JS 对象的数据
				// 直接附加到对象上，因此可以自动进行垃圾回收
				cache = isNode ? jQuery.cache : elem, // 根据 elem 类型选择缓存

				// 只有当 JS 对象的缓存已经存在时，才为其定义 ID，
				// 这样可以让代码在没有缓存的 DOM 节点路径上快速处理
				id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey,
				isEvents = name === "events"; // 检查 name 是否等于 "events"

			// 在尝试获取没有数据的对象时，避免做不必要的工作
			if ( (!id || !cache[id] || (!isEvents && !pvt && !cache[id].data)) && getByName && data === undefined ) {
				return; // 如果没有找到数据或条件不满足，返回
			}


			if ( !id ) {
				// 只有 DOM 节点需要为每个元素生成一个新的唯一 ID
				// 因为它们的数据最终会存储在全局缓存中
				if ( isNode ) {
					elem[ internalKey ] = id = ++jQuery.uuid; // 为 DOM 节点分配唯一的 ID
				} else {
					id = internalKey; // 对于非 DOM 对象，使用内部键作为 ID
				}
			}

			if ( !cache[ id ] ) {
				cache[ id ] = {}; // 初始化缓存对象，如果该 ID 的缓存不存在

				// 避免在使用 JSON.stringify 序列化普通 JS 对象时暴露 jQuery 元数据
				if ( !isNode ) {
					cache[ id ].toJSON = jQuery.noop; // 如果不是 DOM 节点，则定义 toJSON 方法为无操作
				}
			}

// 可以将一个对象传递给 jQuery.data，而不是键/值对；
// 这个对象会被浅拷贝到现有的缓存中
			if ( typeof name === "object" || typeof name === "function" ) {
				if ( pvt ) {
					// 如果是私有数据，则直接扩展当前 ID 的缓存
					cache[ id ] = jQuery.extend( cache[ id ], name );
				} else {
					// 否则，将数据扩展到现有的 data 属性上
					cache[ id ].data = jQuery.extend( cache[ id ].data, name );
				}
			}


			privateCache = thisCache = cache[ id ]; // 初始化 privateCache 和 thisCache，指向指定 ID 的缓存对象

// jQuery 的 data() 方法存储在对象内部数据缓存中的一个单独对象中
// 以避免内部数据和用户定义数据之间的键冲突。
			if ( !pvt ) {
				// 如果不是私有数据，则为 thisCache 初始化一个 data 对象
				if ( !thisCache.data ) {
					thisCache.data = {}; // 创建一个空的数据对象
				}

				thisCache = thisCache.data; // 将 thisCache 指向 data 对象
			}

// 如果 data 参数不为 undefined，则将其存储在 thisCache 中
			if ( data !== undefined ) {
				thisCache[ jQuery.camelCase( name ) ] = data; // 使用驼峰命名法格式化名称，并赋值
			}

// 用户不应尝试通过 jQuery.data 检查内部事件对象，
// 该对象未记录并可能会更改。但真的有人听从吗？没有。
			if ( isEvents && !thisCache[ name ] ) {
				return privateCache.events; // 如果是事件并且 thisCache 中不存在该名称，则返回 privateCache 的 events
			}

// 检查数据属性名称，既包括未转换的原始名称也包括转换为驼峰命名法的名称
// 如果指定了数据属性
			if ( getByName ) {

				// 首先尝试查找原始名称对应的数据属性
				ret = thisCache[ name ];

				// 测试获取到的属性数据是否为 null 或 undefined
				if ( ret == null ) {
					// 尝试查找驼峰命名法格式化后的属性
					ret = thisCache[ jQuery.camelCase( name ) ];
				}
			} else {
				// 如果没有指定获取名称，直接返回 thisCache
				ret = thisCache;
			}

// 返回结果
			return ret;
		},

		removeData: function( elem, name, pvt /* 仅供内部使用 */ ) {
			// 检查元素是否可以接受数据
			if ( !jQuery.acceptData( elem ) ) {
				return; // 如果不能接受数据，则退出
			}

			var thisCache, i, l, // 声明变量以用于后续操作


				// 内部数据缓存的键引用
				internalKey = jQuery.expando,

// 检查元素类型，确定是否为节点
				isNode = elem.nodeType,

// 根据元素类型选择缓存对象，节点使用 jQuery.cache，其他元素直接使用 elem
				cache = isNode ? jQuery.cache : elem,

// 获取元素的唯一标识符，如果是节点，则从元素中获取 internalKey，否则使用 internalKey 本身
				id = isNode ? elem[ internalKey ] : internalKey;

// 如果该对象已经没有缓存条目，继续执行没有意义
			if ( !cache[ id ] ) {
				return; // 退出函数
			}

// 如果指定了名称（name），则根据 pvt 选择不同的数据缓存
			if ( name ) {
				// 根据是否是私有数据选择对应的缓存
				thisCache = pvt ? cache[ id ] : cache[ id ].data;


				// 检查 thisCache 是否存在
				if ( thisCache ) {

					// 支持数组或以空格分隔的字符串作为数据键名
					if ( !jQuery.isArray( name ) ) {

						// 尝试将字符串作为键值直接访问，如果存在，则将其转换为数组
						if ( name in thisCache ) {
							name = [ name ]; // 将单个键封装成数组
						} else {
							// 对名称进行驼峰命名法处理，并再次检查该键是否存在于 thisCache 中
							name = jQuery.camelCase( name );
							if ( name in thisCache ) {
								name = [ name ]; // 如果存在，封装成数组
							} else {
								// 如果仍然不存在，按空格分割字符串为多个键名
								name = name.split( " " );
							}
						}
					}

					// 遍历所有要删除的键名，并从 thisCache 中删除对应的条目
					for ( i = 0, l = name.length; i < l; i++ ) {
						delete thisCache[ name[i] ];
					}

					// 如果缓存中没有剩余的数据，我们希望继续执行并让缓存对象本身被销毁
					if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
						return; // 如果缓存不为空，则退出函数
					}
				}
		}

			// See jQuery.data for more information
// 首先判断pvt是否为假（即不存在或值为false等情况）
			if (!pvt) {
				// 如果pvt不存在，从名为cache的对象中，根据id删除其data属性
				delete cache[id].data;

				// Don't destroy the parent cache unless the internal data object
				// had been the only thing left in it
				// 以下判断表示，只有当cache[id]这个对象内部的数据对象（也就是刚删除data属性后的cache[id]）已经为空（即除了刚删除的data属性外没别的内容了）时，才继续往下执行删除整个cache[id]的操作；
				// 如果cache[id]还有其他属性等内容存在，就直接返回（不进行后续删除整个cache[id]的操作）
				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
// 这里进行条件判断，目的是决定如何处理从cache对象中删除以id为键的元素
// 如果浏览器支持删除扩展属性（jQuery.support.deleteExpando为真）或者cache对象不存在setInterval属性（意味着它不是window对象，因为window对象有setInterval方法）
			if (jQuery.support.deleteExpando ||!cache.setInterval) {
				// 那么直接从cache对象中删除以id为键的这个元素
				delete cache[id];
			} else {
				// 否则（也就是不满足上述条件，可能是浏览器不支持删除扩展属性且cache对象是window对象这种情况），将cache[id]赋值为null，相当于进行一种间接的“清除”处理（虽然不能直接删除window对象上的属性，但可以通过赋值为null来达到类似效果）
				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
// 这段注释说明，当缓存已经被销毁时，需要移除节点上的扩展属性（expando），以避免在缓存中对已不存在的条目进行错误查找。
			if (isNode) {
				// 如果当前元素是节点（isNode为真），以下代码处理不同浏览器环境下移除节点上特定扩展属性的情况。
				// 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
				// 如果浏览器支持删除扩展属性（jQuery.support.deleteExpando为真）
				if (jQuery.support.deleteExpando) {
					// 直接从elem元素对象上删除名为internalKey的属性（这个internalKey应该是用于存储某种扩展数据相关的键）
					delete elem[internalKey];
				} else if (elem.removeAttribute) {
					// 如果不支持直接删除扩展属性，但elem元素有removeAttribute方法，
					// 则使用removeAttribute方法来移除名为internalKey的属性，达到类似效果。
					elem.removeAttribute(internalKey);
				} else {
					// 如果前面两种情况都不满足（既不支持直接删除扩展属性，也没有removeAttribute方法可用），
					// 则将elem[internalKey]赋值为null，进行一种间接的“清除”处理，尽量避免后续可能出现的问题。
					elem[internalKey] = null;
				}
			}
		},

// For internal use only.
// 以下方法被标记为仅供内部使用，从函数的实现来看，它实际上是调用了jQuery.data方法，并传入了额外的参数true，
// 具体功能应该和jQuery.data相关联，可能在内部处理数据时有一些特殊逻辑。
		_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
// 这个方法用于判断一个DOM节点是否能够处理数据扩展属性（data expando）。
		acceptData: function(elem) {
			if (elem.nodeName) {
				// 获取elem节点名称的小写形式对应的在jQuery.noData对象中的匹配项，
				// jQuery.noData应该是一个存储了哪些节点名称不适合处理数据扩展属性相关信息的对象。
				var match = jQuery.noData[elem.nodeName.toLowerCase()];

				if (match) {
					// 如果存在匹配项，根据匹配项的值来返回判断结果。
					// 如果match为true或者elem节点的classid属性值不等于match时，返回false，表示该节点不能处理数据扩展属性；
					// 否则返回true。
					return!(match === true || elem.getAttribute("classid")!== match);
				}
			}

			// 如果前面没有匹配到不适合处理的情况或者节点本身没有节点名称（elem.nodeName不存在），默认返回true，表示可以处理数据扩展属性。
			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" );
		}
	}
});
//a
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";
}

jQuery.each([ "height", "width" ], function( i, name ) {
	jQuery.cssHooks[ name ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {
				if ( elem.offsetWidth !== 0 ) {
					return getWidthOrHeight( elem, name, extra );
				} else {
					return jQuery.swap( elem, cssShow, function() {
						return getWidthOrHeight( elem, name, extra );
					});
				}
			}
		},

		set: function( elem, value ) {
			return rnum.test( value ) ?
				value + "px" :
				value;
		}
	};
});

if ( !jQuery.support.opacity ) {
	jQuery.cssHooks.opacity = {
		get: function( elem, computed ) {
			// IE uses filters for opacity
			return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
				( parseFloat( RegExp.$1 ) / 100 ) + "" :
				computed ? "1" : "";
		},

		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 has trouble with opacity if it does not have layout
			// Force it by setting the zoom level
			style.zoom = 1;

			// if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
			if ( value >= 1 && jQuery.trim( filter.replace( ralpha, "" ) ) === "" ) {

				// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
				// if "filter:" is present at all, clearType is disabled, we want to avoid this
				// style.removeAttribute is IE Only, but so apparently is this code path...
				style.removeAttribute( "filter" );

				// if there there is no filter style applied in a css rule, we are done
				if ( currentStyle && !currentStyle.filter ) {
					return;
				}
			}

			// otherwise, set new filter values
			style.filter = ralpha.test( filter ) ?
				filter.replace( ralpha, opacity ) :
				filter + " " + opacity;
		}
	};
}

jQuery(function() {
	// This hook cannot be added until DOM ready because the support test
	// for it is not run until after DOM ready
	if ( !jQuery.support.reliableMarginRight ) {
		jQuery.cssHooks.marginRight = {
			get: function( elem, computed ) {
				// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
				// Work around by temporarily setting element display to inline-block
				return jQuery.swap( elem, { "display": "inline-block" }, function() {
					if ( computed ) {
						return curCSS( elem, "margin-right" );
					} else {
						return elem.style.marginRight;
					}
				});
			}
		};
	}
});

if ( jQuery.expr && jQuery.expr.filters ) {
	jQuery.expr.filters.hidden = function( elem ) {
		var width = elem.offsetWidth,
			height = elem.offsetHeight;

		return ( width === 0 && height === 0 ) || (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
	};

	jQuery.expr.filters.visible = function( elem ) {
		return !jQuery.expr.filters.hidden( elem );
	};
}

// These hooks are used by animate to expand properties
jQuery.each({
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {

	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i,

				// assumes a single number if not a string
				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?$/mg, // IE leaves an \r character at EOL
	rinput = /^(?:color|date|datetime|datetime-local|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
	// #7653, #8125, #8152: local protocol detection
	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+))?)?/,

	// Keep a copy of the old load method
	_load = jQuery.fn.load,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Document location
	ajaxLocation,

	// Document location segments
	ajaxLocParts,

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = ["*/"] + ["*"];

// #8138, IE may throw an exception when accessing
// a field from window.location if document.domain has been set
try {
	ajaxLocation = location.href;
} catch( e ) {
	// Use the href attribute of an A element
	// since IE will modify it given document.location
	ajaxLocation = document.createElement( "a" );
	ajaxLocation.href = "";
	ajaxLocation = ajaxLocation.href;
}

// Segment location into parts
ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		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;

			// For each dataType in the dataTypeExpression
			for ( ; i < length; i++ ) {
				dataType = dataTypes[ i ];
				// We control if we're asked to add before
				// any existing element
				placeBefore = /^\+/.test( dataType );
				if ( placeBefore ) {
					dataType = dataType.substr( 1 ) || "*";
				}
				list = structure[ dataType ] = structure[ dataType ] || [];
				// then we add to the structure accordingly
				list[ placeBefore ? "unshift" : "push" ]( func );
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR,
		dataType /* internal */, inspected /* internal */ ) {

	dataType = dataType || options.dataTypes[ 0 ];
	inspected = inspected || {};

	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 );
		// If we got redirected to another dataType
		// we try there if executing only and not done already
		if ( typeof selection === "string" ) {
			if ( !executeOnly || inspected[ selection ] ) {
				selection = undefined;
			} else {
				options.dataTypes.unshift( selection );
				selection = inspectPrefiltersOrTransports(
						structure, options, originalOptions, jqXHR, selection, inspected );
			}
		}
	}
	// If we're only executing or nothing was selected
	// we try the catchall dataType if not done already
	if ( ( executeOnly || !selection ) && !inspected[ "*" ] ) {
		selection = inspectPrefiltersOrTransports(
				structure, options, originalOptions, jqXHR, "*", inspected );
	}
	// unnecessary when only executing (prefilters)
	// but it'll be ignored by the caller in that case
	return selection;
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var key, deep,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};
	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}
}

jQuery.fn.extend({
	load: function( url, params, callback ) {
		if ( typeof url !== "string" && _load ) {
			return _load.apply( this, arguments );

		// Don't do a request if no elements are being requested
		} 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 );
		}

		// Default to a GET request
		var type = "GET";

		// If the second parameter was provided
		if ( params ) {
			// If it's a function
			if ( jQuery.isFunction( params ) ) {
				// We assume that it's the callback
				callback = params;
				params = undefined;

			// Otherwise, build a param string
			} else if ( typeof params === "object" ) {
				params = jQuery.param( params, jQuery.ajaxSettings.traditional );
				type = "POST";
			}
		}

		var self = this;

		// Request the remote document
		jQuery.ajax({
			url: url,
			type: type,
			dataType: "html",
			data: params,
			// Complete callback (responseText is used internally)
			complete: function( jqXHR, status, responseText ) {
				// Store the response as specified by the jqXHR object
				responseText = jqXHR.responseText;
				// If successful, inject the HTML into all the matched elements
				if ( jqXHR.isResolved() ) {
					// #4825: Get the actual response in case
					// a dataFilter is present in ajaxSettings
					jqXHR.done(function( r ) {
						responseText = r;
					});
					// See if a selector was specified
					self.html( selector ?
						// Create a dummy div to hold the results
						jQuery("<div>")
							// inject the contents of the document in, removing the scripts
							// to avoid any 'Permission Denied' errors in IE
							.append(responseText.replace(rscript, ""))

							// Locate the specified elements
							.find(selector) :

						// If not, just inject the full result
						responseText );
				}

				if ( callback ) {
					self.each( callback, [ responseText, status, jqXHR ] );
				}
			}
		});

		return this;
	},

	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},

	serializeArray: function() {
		return this.map(function(){
			return this.elements ? jQuery.makeArray( this.elements ) : this;
		})
		.filter(function(){
			return this.name && !this.disabled &&
				( this.checked || rselectTextarea.test( this.nodeName ) ||
					rinput.test( this.type ) );
		})
		.map(function( i, elem ){
			var val = jQuery( this ).val();

			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();
	}
});

// Attach a bunch of functions for handling common AJAX events
jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split( " " ), function( i, o ){
	jQuery.fn[ o ] = function( f ){
		return this.on( o, f );
	};
});

jQuery.each( [ "get", "post" ], function( i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {
		// shift arguments if data argument was omitted
		if ( jQuery.isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		return jQuery.ajax({
			type: method,
			url: url,
			data: data,
			success: callback,
			dataType: type
		});
	};
});

jQuery.extend({

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "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 ) {
		if ( settings ) {
			// Building a settings object
			ajaxExtend( target, jQuery.ajaxSettings );
		} else {
			// Extending ajaxSettings
			settings = target;
			target = jQuery.ajaxSettings;
		}
		ajaxExtend( target, settings );
		return target;
	},

	ajaxSettings: {
		url: ajaxLocation,
		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
		global: true,
		type: "GET",
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
		processData: true,
		async: true,
		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		traditional: false,
		headers: {},
		*/

		accepts: {
			xml: "application/xml, text/xml",
			html: "text/html",
			text: "text/plain",
			json: "application/json, text/javascript",
			"*": allTypes
		},

		contents: {
			xml: /xml/,
			html: /html/,
			json: /json/
		},

		responseFields: {
			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: {

			// Convert anything to text
			"* text": window.String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": jQuery.parseJSON,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// 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: {
			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 ) {

				script = document.createElement( "script" );

				script.async = "async";

				if ( s.scriptCharset ) {
					script.charset = s.scriptCharset;
				}

				script.src = s.url;

				// Attach handlers for all browsers
				script.onload = script.onreadystatechange = function( _, isAbort ) {

					if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {

						// Handle memory leak in IE
						script.onload = script.onreadystatechange = null;

						// Remove the script
						if ( head && script.parentNode ) {
							head.removeChild( script );
						}

						// Dereference the script
						script = undefined;

						// 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 );
				}
			}
		};
	}
});




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;

// Functions to create xhrs
function createStandardXHR() {
	try {
		return new window.XMLHttpRequest();
	} catch( e ) {}
}

function createActiveXHR() {
	try {
		return new window.ActiveXObject( "Microsoft.XMLHTTP" );
	} catch( e ) {}
}

// 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;

// Determine support properties
(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
if ( jQuery.support.ajax ) {

	jQuery.ajaxTransport(function( s ) {
		// Cross domain only allowed if supported through XMLHttpRequest
		if ( !s.crossDomain || jQuery.support.cors ) {

			var callback;

			return {
				send: function( headers, complete ) {

					// Get a new xhr
					var xhr = s.xhr(),
						handle,
						i;

					// 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 );
					}

					// Apply custom fields if provided
					if ( s.xhrFields ) {
						for ( i in s.xhrFields ) {
							xhr[ i ] = s.xhrFields[ i ];
						}
					}

					// Override mime type if needed
					if ( s.mimeType && xhr.overrideMimeType ) {
						xhr.overrideMimeType( s.mimeType );
					}

					// 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";
					}

					// 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 );
							}
						}

						// Call complete if needed
						if ( responses ) {
							complete( status, statusText, responses, responseHeaders );
						}
					};

					// 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;
					}
				},

				abort: function() {
					if ( callback ) {
						callback(0,1);
					}
				}
			};
		}
	});
}




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;

jQuery.fn.extend({
	show: function( speed, easing, callback ) {
		var elem, display;

		if ( speed || speed === 0 ) {
			return this.animate( genFx("show", 3), speed, easing, callback );

		} else {
			for ( var i = 0, j = this.length; i < j; i++ ) {
				elem = this[ i ];

				if ( elem.style ) {
					display = elem.style.display;

					// 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 = "";
					}

					// 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) );
					}
				}
			}

			// 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 ];

				if ( elem.style ) {
					display = elem.style.display;

					if ( display === "" || display === "none" ) {
						elem.style.display = jQuery._data( elem, "olddisplay" ) || "";
					}
				}
			}

			return this;
		}
	},

	hide: function( speed, easing, callback ) {
		if ( speed || speed === 0 ) {
			return this.animate( genFx("hide", 3), speed, easing, callback);

		} else {
			var elem, display,
				i = 0,
				j = this.length;

			for ( ; i < j; i++ ) {
				elem = this[i];
				if ( elem.style ) {
					display = jQuery.css( elem, "display" );

					if ( display !== "none" && !jQuery._data( elem, "olddisplay" ) ) {
						jQuery._data( elem, "olddisplay", display );
					}
				}
			}

			// 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";
				}
			}

			return this;
		}
	},

	// Save the old toggle function
	_toggle: jQuery.fn.toggle,

	toggle: function( fn, fn2, callback ) {
		var bool = typeof fn === "boolean";

		if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
			this._toggle.apply( this, arguments );

		} else if ( fn == null || bool ) {
			this.each(function() {
				var state = bool ? fn : jQuery(this).is(":hidden");
				jQuery(this)[ state ? "show" : "hide" ]();
			});

		} else {
			this.animate(genFx("toggle", 3), fn, fn2, callback);
		}

		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 ] );
		}

		// Do not change referenced properties as per-property easing will be lost
		prop = jQuery.extend( {}, prop );

		function doAnimation() {
			// XXX 'this' does not always have a nodeName when running the
			// test suite

			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;

			// 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 ];
				}

				if ( ( hooks = jQuery.cssHooks[ name ] ) && "expand" in hooks ) {
					replace = hooks.expand( prop[ name ] );
					delete prop[ name ];

					// 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 ];
						}
					}
				}
			}

			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';
				}

				if ( val === "hide" && hidden || val === "show" && !hidden ) {
					return opt.complete.call( this );
				}

				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";
			}

			for ( p in prop ) {
				e = new jQuery.fx( this, opt, p );
				val = prop[ p ];

				if ( rfxtypes.test( val ) ) {

					// 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 ]();
					}

				} else {
					parts = rfxnum.exec( val );
					start = e.cur();

					if ( parts ) {
						end = parseFloat( parts[2] );
						unit = parts[3] || ( jQuery.cssNumber[ p ] ? "" : "px" );

						// 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);
						}

						// If a +=/-= token was provided, we're doing a relative animation
						if ( parts[1] ) {
							end = ( (parts[ 1 ] === "-=" ? -1 : 1) * end ) + start;
						}

						e.custom( start, end, unit );

					} else {
						e.custom( start, val, "" );
					}
				}
			}

			// For JS strict compliance
			return true;
		}

		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 );

			// clear marker counters if we know they won't be
			if ( !gotoEnd ) {
				jQuery._unmark( true, this );
			}

			function stopQueue( elem, data, index ) {
				var hooks = data[ index ];
				jQuery.removeData( elem, index, true );
				hooks.stop( gotoEnd );
			}

			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 );
			}

			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
						timers[ index ]( true );
					} else {
						timers[ index ].saveState();
					}
					hadTimers = true;
					timers.splice( index, 1 );
				}
			}

			// 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 );
			}
		});
	}

});

// Animations created synchronously will run synchronously
function createFxNow() {
	setTimeout( clearFxNow, 0 );
	return ( fxNow = jQuery.now() );
}

function clearFxNow() {
	fxNow = undefined;
}

// 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;
}

// 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;
	},

	easing: {
		linear: function( p ) {
			return p;
		},
		swing: function( p ) {
			return ( -Math.cos( p*Math.PI ) / 2 ) + 0.5;
		}
	},

	timers: [],

	fx: function( elem, options, prop ) {
		this.options = options;
		this.elem = elem;
		this.prop = prop;

		options.orig = options.orig || {};
	}

});

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 );
		}

		( jQuery.fx.step[ this.prop ] || jQuery.fx.step._default )( this );
	},

	// 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 ];
		}

		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 );
		}

		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 ( t() && jQuery.timers.push(t) && !timerId ) {
			timerId = setInterval( fx.tick, fx.interval );
		}
	},

	// Simple 'show' function
	show: function() {
		var dataShow = jQuery._data( this.elem, "fxshow" + this.prop );

		// 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;

		// 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() );
		}

		// 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();
				}

				// 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 );
					}
				}

				// 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 ) {

					options.complete = false;
					complete.call( elem );
				}
			}

			return false;

		} 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();
		}

		return true;
	}
};

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;
			}
		}
	}
});

// 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 ) {

	if ( !elemdisplay[ nodeName ] ) {

		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;
			}

			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();
			}

			elem = iframeDoc.createElement( nodeName );

			iframeDoc.body.appendChild( elem );

			display = jQuery.css( elem, "display" );
			body.removeChild( iframe );
		}

		// Store the correct default display
		elemdisplay[ nodeName ] = display;
	}

	return elemdisplay[ nodeName ];
}




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) {}

		// 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;

		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;
			}

			computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
			top  -= elem.scrollTop;
			left -= elem.scrollLeft;

			if ( elem === offsetParent ) {
				top  += elem.offsetTop;
				left += elem.offsetLeft;

				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;
			}

			if ( jQuery.support.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {
				top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
				left += parseFloat( computedStyle.borderLeftWidth ) || 0;
			}

			prevComputedStyle = computedStyle;
		}

		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 );
		}

		return { top: top, left: left };
	};
}

jQuery.fn.offset = function( options ) {
	if ( arguments.length ) {
		return options === undefined ?
			this :
			this.each(function( i ) {
				jQuery.offset.setOffset( this, options, i );
			});
	}

	var elem = this[0],
		doc = elem && elem.ownerDocument;

	if ( !doc ) {
		return null;
	}

	if ( elem === doc.body ) {
		return jQuery.offset.bodyOffset( elem );
	}

	return getOffset( elem, doc, doc.documentElement );
};

jQuery.offset = {

	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;
		}

		return { top: top, left: left };
	},

	setOffset: function( elem, options, i ) {
		var position = jQuery.css( elem, "position" );

		// set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		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;
		}

		if ( jQuery.isFunction( options ) ) {
			options = options.call( elem, i, curOffset );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );
		} else {
			curElem.css( props );
		}
	}
};


jQuery.fn.extend({

	position: function() {
		if ( !this[0] ) {
			return null;
		}

		var elem = this[0],

		// Get *real* offsetParent
		offsetParent = this.offsetParent(),

		// Get correct offsets
		offset       = this.offset(),
		parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();

		// 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;

		// Subtract the two offsets
		return {
			top:  offset.top  - parentOffset.top,
			left: offset.left - parentOffset.left
		};
	},

	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;
		});
	}
});


// 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 ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : jQuery( win ).scrollLeft(),
					 top ? val : jQuery( win ).scrollTop()
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length, null );
	};
});

function getWindow( elem ) {
	return jQuery.isWindow( elem ) ?
		elem :
		elem.nodeType === 9 ?
			elem.defaultView || elem.parentWindow :
			false;
}




// 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;
			}

			// 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 ];
				}

				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;
			}

			// Set the width or height on the element
			jQuery( elem ).css( type, value );
		}, type, value, arguments.length, null );
	};
});




// Expose jQuery to the global object
window.jQuery = window.$ = jQuery;

// 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 ) {
	define( "jquery", [], function () { return jQuery; } );
}



})( window );