<!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>纯css管理菜单</title>
<style type="text/css">
body{font-size:12px;}
ul,li,h2{margin:0;padding:0;}
ul{list-style:none;}
#top{width:900px;height:40px;margin:0 auto;background-color:#cc0}
#top h2{width:150px;height:40px;background-color:#9c0;float:left;font-size:14px;text-align:center;line-height:40px;}
#topTags{width:750px;height:40px;margin:0 auto;background-color:#cc0;float:left}
#topTags ul li{float:left;width:100px;height:25px;margin-right:5px;display:block;text-align:center;cursor:pointer;padding-top:15px;}
#main{width:900px;height:500px;margin:0 auto;background-color:#F5F7E6;}
#leftMenu{width:150px;height:500px;background-color:#009900;float:left}
#leftMenu ul{margin:10px;}
#leftMenu ul li{width:130px;height:30px;display:block;background:#9c0;cursor:pointer;line-height:30px;text-align:center;margin-bottom:5px;}
#leftMenu ul li a{color:#000000;text-decoration:none;}
#content{width:750px;height:500px;float:left}
.content{width:740px;height:490px;display:none;padding:5px;overflow-y:auto;line-height:30px;}
#footer{width:900px;height:30px;margin:0 auto;background-color:#ccc;line-height:30px;text-align:center;}
.content1 {width:740px;height:490px;display:block;padding:5px;overflow-y:auto;line-height:30px;}
</style>
<script type="text/javascript">
window.onload=function(){
function $(id){return document.getElementById(id)}
var menu=$("topTags").getElementsByTagName("ul")[0];//顶部菜单容器
var tags=menu.getElementsByTagName("li");//顶部菜单
var ck=$("leftMenu").getElementsByTagName("ul")[0].getElementsByTagName("li");//左侧菜单
var j;
//点击左侧菜单增加新标签
for(i=0;i<ck.length;i++){
ck[i].onclick=function(){
$("welcome").style.display="none"//欢迎内容隐藏
clearMenu();
this.style.background="yellow";
//循环取得当前索引
for(j=0;j<8;j++){
if(this==ck[j]){
if($("p"+j)==null){
openNew(j,this.innerHTML);//设置标签显示文字
}
clearStyle();
$("p"+j).style.backgroundColor="yellow";
clearContent();
$("c"+j).style.display="block";
}
}
return false;
}
}
//增加或删除标签
function openNew(id,name){
var tagMenu=document.createElement("li");
tagMenu.>
<div align="center">
<p> </p>
<p><strong>欢迎使用管理系统！</strong></p>
<p> </p>
</div>
</div>
<div >copyright for cool80.com</div>
</body>
</html>