求高手看看这段JQ、JS是哪里错了，IE6 IE7没效果？在线等！！！

<!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>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title></title>
<style>
dl{ width:200px; cursor:pointer; background:#f00}
ul{ display:none; background:#fff}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
</head>
<body>
<div id="menu">
<dl>
            <dt><s class="jia"></s><span><a href="#">AAAAA</a></span></span></dt>
             <ul style="display:block">
                <li><a href="#">2222</a></li>
                <li><a href="#">3333</a></li>
             <li><a href="#">4444</a></li>
             </ul>
          </dl>
          
          <dl>
            <dt><s class="jia"></s><span><span><a href="#">BBBBB</a></span></span></dt>
             <ul>
             <li><a href="#">22222</a></li>
                <li><a href="#">33333</a></li>
             </ul>
          </dl>
          
           <dl>
            <dt><s class="jia"></s><span><span><a href="#">CCCCC</a></span></span></dt>
             <ul>
             <li><a href="#">22222</a></li>
                <li><a href="#">33333</a></li>
             </ul>
          </dl>
</div>
<script type="text/javascript">
$("#menu dl").click(function () {
       $(this).siblings().find("ul").slideUp(300);
var text = $(this).children("ul");

if (text.is(':hidden')) {
text.slideDown(300);
} else {
text.slideUp(300); } });

</script>
</body>
</html>

解决方案 »

  1.   

    var text = $(this).children("ul");
    改成：
    var text = $(this).find("ul");  
      

  2.   

    <script type="text/javascript">
        $(document).ready(function(){
            $("#menu dl ul").click(function(e){
                e.stopPropagation();//阻止冒泡
            });
            $("#menu dl").click(function () {
                $(this).siblings().find("ul").slideUp(300);
                var text = $(this).find("ul");
                if (text.is(':hidden')) {
                    text.slideDown(300);
                } else {
                    text.slideUp(300);
                }
            });
        })
    </script>
      

  3.   

    <!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>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title></title>
    <style>
    dl{ width:200px; cursor:pointer; background:#f00}
    ul{display:none; background:#fff}
    </style>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
    </head>
    <body>
    <div id="menu">
    <dl>
                <dt><s class="jia"></s><span><a href="#">AAAAA</a></span></span></dt>
                 <ul style="display:block">
                    <li><a href="#">2222</a></li>
                    <li><a href="#">3333</a></li>
                    <li><a href="#">4444</a></li>
                 </ul>
              </dl>
              
              <dl>
                <dt><s class="jia"></s><span><span><a href="#">BBBBB</a></span></span></dt>
                 <ul>
                    <li><a href="#">22222</a></li>
                    <li><a href="#">33333</a></li>
                 </ul>
              </dl>
              
               <dl>
                <dt><s class="jia"></s><span><span><a href="#">CCCCC</a></span></span></dt>
                 <ul>
                    <li><a href="#">22222</a></li>
                    <li><a href="#">33333</a></li>
                 </ul>
              </dl>
    </div>
    <script type="text/javascript">
    $(function(){
    menufn();
    });function menufn(){
     var dt=$("#menu dt");
    dt.each(function(i){
     $(this).click(function(){
      var i=$(this).parents("dl").index();
      var ul=$("#menu ul");
      ul.each(function(){
       $(this).slideUp(300).css("display","none");
      });
      ul.eq(i).css("display","block").slideDown(300);
     });
    if(i>dt.length)
    return false;
    });
    }              
    </script>
    </body>
    </html>