diff --git a/app/views/users/_resources_list.html.erb b/app/views/users/_resources_list.html.erb
index f134e8f42..34d609487 100644
--- a/app/views/users/_resources_list.html.erb
+++ b/app/views/users/_resources_list.html.erb
@@ -5,7 +5,7 @@
     <!--</p>-->
 <% else %>
     <% attachments.each do |attach| %>
-        <ul class="resourcesList">
+        <ul class="resourcesList" onmouseover="$(this).children().css('background-color', '#e1e1e1')" onmouseout="$(this).children().css('background-color', 'white')">
           <li class="resourcesListCheckbox fl">
             <input name="checkbox1[]" type="checkbox" onclick="checkAllBox($(this));" value="<%= attach.id%>" class="resourcesCheckbox" />
           </li>
diff --git a/app/views/users/user_resource.html.erb b/app/views/users/user_resource.html.erb
index 5c6339e59..f6bb3c8cb 100644
--- a/app/views/users/user_resource.html.erb
+++ b/app/views/users/user_resource.html.erb
@@ -145,7 +145,6 @@
     var id; //资源id
     var sendType;  //发送到课程 1  发送到项目 2
     var lastSendType;  //保存上次发送的发送类型
-    var last_op
     $("#resources_list").mousedown(function(e) {
         //如果是右键的话
         if (3 == e.which) {
@@ -180,28 +179,6 @@
             last_line = line;
         }
     });
-
-    //鼠标经过时，背景颜色设为灰色
-    $("#resources_list").mouseover(function(e){
-        pageX = e.clientX;
-        pageY = e.clientY;
-        var ele = document.elementFromPoint(pageX,pageY);
-        line = $(ele).parent();
-        if(last_op != null){
-            last_op.children().css("background-color", 'white');
-            restore();
-            last_op == null;
-        }
-        //如果当前的tag是li，那么还要li的父级元素
-        if(line.get(0).tagName === 'LI'){
-            line = line.parent();
-        }
-        //将当前的元素的所有子元素的背景色改为蓝色
-        line.children().css("background-color", '#e1e1e1');
-        //将当前元素赋给 上一个对象 保存起来。
-        last_op = line;
-    });
-
     //元素包含关系计算
     var contains  = function(root, el) {
         if (root.compareDocumentPosition)