CSS+JS滑动门菜单（荐）

答案：<!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=gb2312" />
<title>兼容IE7 IE8 FF 等主流浏览器多标签滑动门</title>
<style type="text/css">
body{
color: #000;
font-family: "宋体", arial;
font-size: 12px;
background: #fff;
text-align: center;
margin: 0;
}
.nTab{
float: left;
width: 542px;
margin: 0 auto;
border-bottom:1px #C7C7CD solid;
background:#d5d5d5;
background-position:left;
background-repeat:repeat-y;
margin-bottom:2px;
}
.nTab .TabTitle{
clear: both;
height: 26px;
overflow: hidden;
}
.nTab .TabTitle ul{
margin:0;
padding:0;
}
.nTab .TabTitle li{
float: left;
width: 60px;
cursor: pointer;
padding-top: 6px;
padding-right: 0px;
padding-left: 0px;
padding-bottom: 7px;
list-style-type: none;
}
.nTab .TabTitle .active{ background:url(http://www.zzzyk.com/jscss/demoimg/200905/tab_bg1.gif) left -25px no-repeat;border-left:1px  #C7C7CD solid;border-top:1px  #C7C7CD solid;border-bottom:1px #fff solid;}
.nTab .TabTitle .normal{ background:url(http://www.zzzyk.com/jscss/demoimg/200905/tab_bg1.gif);border-top:1px #C7C7CD solid;border-bottom:1px #C7C7CD solid;}
.nTab .TabContent{
width:auto;background:#fff;
margin: 0px auto;
padding:10px 0 0 0;
border-right:1px #C7C7CD solid;border-left:1px #C7C7CD solid;
}
.none {display:none;}
</style>
<script type="text/javascript">
function nTabs(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("li");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "active"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "normal"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}
</script>
</head>
<body>
<br />
<center>
<div style="text-align:center; margin-left:200px;">
<!-- 选项卡开始 -->
  <div class="nTab">
    <!-- 标题开始 -->
    <div class="TabTitle">
      <ul id="myTab0">
        <li class="active" onmouseover="nTabs(this,0);">源码首页</li>
        <li class="normal" onmouseover="nTabs(this,1);">最新更新</li>
        <li class="normal" onmouseover="nTabs(this,2);">下载排行</li>
        <li class="normal" onmouseover="nTabs(this,3);">源码分类</li>
        <li class="normal" onmouseover="nTabs(this,4);">网页特效</li>
        <li class="normal" onmouseover="nTabs(this,5);">ASP源码</li>
<li class="normal" onmouseover="nTabs(this,6);">PHP源码</li>
<li class="normal" onmouseover="nTabs(this,7);">JSP源码</li>
<li class="normal" onmouseover="nTabs(this,8);">JAVA源码</li>
      </ul>
    </div>
    <!-- 内容开始 -->
    <div class="TabContent">
      <div id="myTab0_Content0"> 出自：<a href="#" target="_blank">站长资源库</a></div>
      <div id="myTab0_Content1" class="none"><a href="#">最新更新</a></div>
      <div id="myTab0_Content2" class="none"><a href="#">下载排行</a></div>
      <div id="myTab0_Content3" class="none"><a href="#">源码分类</a></div>
      <div id="myTab0_Content4" class="none"><a href="#">网页特效</a></div>
      <div id="myTab0_Content5" class="none"><a href="#">ASP类程序</a></div>
<div id="myTab0_Content6" class="none"><a href="#">PHP精品程序</a></div>
<div id="myTab0_Content7" class="none"><a href="#">JSP源码区</a></div>
<div id="myTab0_Content8" class="none"><a href="#">精品JAVA源码</a></div>
    </div>
  </div>
  <!-- 选项卡结束 -->  </div>
  </center>
 </body>
</html>
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