用jquery隐藏左侧导航，增大右侧内容显示宽度后，右侧内容中应用的放大镜效果magnify消失了？搞不定不让上WC，我现在手都抖了，%>_<%

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="shofu.master.cs" Inherits="tupu_MasterPages_shofu" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
   <title></title>    
    <link href="../styles/tupu.css" type="text/css" rel="Stylesheet" />
    <link rel="stylesheet" href="../../javascript/fancybox/source/jquery.fancybox.css" type="text/css" media="screen" />
    <script src="../../javascript/jquery-1.7.1.min.js" type="text/javascript"></script>
    <script src="../../javascript/fancybox/source/jquery.fancybox.pack.js" type="text/javascript"></script>
    <script src="../../javascript/fancybox/lib/jquery.mousewheel-3.0.6.pack.js" type="text/javascript"></script>
    <script src="../../javascript/Magnify/Magnify.js" type="text/javascript"></script>
    <script type="text/javascript">
               $(document).ready(function () {
          
            $("#zhedie").click(function (event) {
                if (event.target == this) {
                    $("#main_left_div").toggleClass("main_left_div2");
                    $("#main_right_div").toggleClass("main_right_div2");
                }
            })
           
          
            $(".Magnify").magnify();          
        });   
</script>
    <asp:ContentPlaceHolder id="head" runat="server">
    </asp:ContentPlaceHolder>
</head>
<body>
    <form id="form1" runat="server">
    <div id="outer">
        <div id="header_div">
            
            <h3 >最新图谱<%=DateTime.Now.ToString("d") %></h3>
            <div id="hr1"></div>
            <div id="nav_div_top">
            <a href="http://www.sina.com/" target="_blank">新浪</a>
            <a href="#" onclick="window.external.addFavorite('http://www.sina.com/','**')" style="cursor: hand" >添加收藏</a>
            </div>
        </div>
        
        <div id="main_div">
        <div id="main_left_div" class="main_left_div1">
         <fieldset><legend runat="server"></legend>
<a href="images/Original Files/shofu1.jpg" class="Magnify">
   <img src="images/shofu1.jpg" alt="" width="300" height="300">
</a>
</fieldset>
         sdd
        </div> 
        <div id="zhedie">折叠</div>
        
        <div id="main_right_div" class="main_right_div1">
             <asp:ContentPlaceHolder id="ContentPlaceHolder_main_right" runat="server">
             <h1>right</h1>
             </asp:ContentPlaceHolder>
        </div>
        <br class="clear" />
        </div>
       
        <div id="footer_div">
         <p class="red2">footer</p>
           
        </div>
       
        
       
       
        
   </div>
    </form>
</body>
</html>