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不错的二级菜单代码,采用CSS+JS.html
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www./TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www./1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>nav</title> <script language="javascript"> // JavaScript Document 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></head><body><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> </body></html> |
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startList 
