采用CSS和JS的弹出二级菜单

时间：2012-08-19 11:27 来源：未知作者：后浪浏览：次收藏挑错推荐打印

startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
 }
 node.onmouseout=function() {
 this.className=this.className.replace(" over", "");
 }
 }
 }
 }
}
window.onload=startList;
</script>
<style type="text/css">
<!--
body {
  font: normal 11px verdana;
  }

ul {
  margin: 0;
  padding: 0;
  list-style: none;
  width: 150px; /* Width of Menu Items */
  border-bottom: 1px solid #ccc;
  }
  
ul li {
  position: relative;
  }
  
li ul {
  position: absolute;
  left: 149px; /* Set 1px less than menu width */
  top: 0;
  display: none;
  }

/* Styles for Menu Items */
ul li a {
  display: block;
  text-decoration: none;
  color: #777;
  background: #fff; /* IE6 Bug */
  padding: 5px;
  border: 1px solid #ccc; /* IE6 Bug */
  border-bottom: 0;
  }
  
/* Holly Hack. IE Requirement \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */

li:hover ul, li.over ul { display: block; } /* The magic */
-->
</style>
<ul id="nav"> 
 <li><a href="#">Home</a></li> 
 <li><a href="#">About</a> 
 <ul> 
 <li><a href="#">History</a></li> 
 <li><a href="#">Team</a></li> 
 <li><a href="#">Offices</a></li> 
 </ul> 
 </li> 
 <li><a href="#">Services</a> 
 <ul> 
 <li><a href="#">Web Design</a></li> 
 <li><a href="#">Internet Marketing</a></li> 
 <li><a href="#">Hosting</a></li> 
 <li><a href="#">Domain Names</a></li> 
 <li><a href="#">Broadband</a></li> 
 </ul> 
 </li> 
 <li><a href="#">Contact Us</a> 
 <ul> 
 <li><a href="#">United Kingdom</a></li> 
 <li><a href="#">France</a></li> 
 <li><a href="#">USA</a></li> 
 <li><a href="#">Australia</a></li> 
 </ul> 
 </li> 
</ul>

采用CSS和JS的弹出二级菜单

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