实现点击左边菜单，然后右边弹出网页内容
<!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 charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>www.lanrentuku.com</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:#CCCC00}
#top h2{width:150px;height:40px;background-color:#99CC00;float:left;font-size:14px;text-align:center;line-height:40px;}
#topTags{width:750px;height:40px;margin:0 auto;background-color:#CCCC00;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:#99CC00;cursor:pointer;line-height:30px;text-align:center;margin-bottom:5px;}
#leftMenu ul li a{color:#000000;text-decoration:none;display:block;height:100%;/*将a填满整个li，要不不点击到a无法加载页面*/}
#content{width:750px;height:500px;float:left}
.content{width:740px;height:490px;display:none;padding:5px;overflow-y:auto;line-height:30px;}
.content iframe{width:100%;height:100%}
#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 () {
$("welcome").style.display = "none"//欢迎内容隐藏
//循环取得当前索引
for (j = 0; j < 8; j++) {
if (this == ck[j]) {
if ($("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.id = "p" + id;
tagMenu.innerHTML = name + " " + "<img src='#' style='vertical-align:middle'/>";
//标签点击事件
tagMenu.onclick = function (evt) {
clearStyle();
tagMenu.style.backgroundColor = "yellow";
clearContent();
$("c" + id).style.display = "block";
}
//标签内关闭图片点击事件
tagMenu.getElementsByTagName("img")[0].onclick = function (evt) {
evt = (evt) ? evt : ((window.event) ? window.event : null);//解决浏览器兼容性问题
if (evt.stopPropagation) { evt.stopPropagation() } //取消opera和Safari冒泡行为;
this.parentNode.parentNode.removeChild(tagMenu); //删除当前标签
var color = tagMenu.style.backgroundColor;
//设置如果关闭一个标签时，让最后一个标签得到焦点
if (color == "#ffff00" || color == "yellow") {//区别浏览器对颜色解释
if (tags.length - 1 >= 0) {
clearStyle();
tags[tags.length - 1].style.backgroundColor = "yellow";
clearContent();
var cc = tags[tags.length - 1].id.split("p");
$("c" + cc[1]).style.display = "block";
}
else {
clearContent();
$("welcome").style.display = "block"
}
}
}
menu.appendChild(tagMenu);
}
//清除标签样式
function clearStyle() {
for (i = 0; i < tags.length; i++) {
menu.getElementsByTagName("li")[i].style.backgroundColor = "#FFCC00";
}
}
//清除内容
function clearContent() {
for (i = 0; i < 7; i++) {
$("c" + i).style.display = "none";
}
}
}
</script>
</head>
<body>
<div id="top">
<h2>管理菜单</h2>
<div id="topTags">
<ul>
</ul>
</div>
</div>
<div id="main">
<div id="leftMenu">
<ul>
<li><a href="个人资料.html" target="content1">个人资料</a></li>
<li><a href="相册管理.html" target="content2">相册管理</a></li>
<li><a href="日志管理.html" target="content3">日志管理</a></li>
<li><a href="留言管理.html" target="content4">留言管理</a></li>
<li><a href="风格管理.html" target="content5">风格管理</a></li>
<li><a href="系统管理.html" target="content6">系统管理</a></li>
<li><a href="帮助信息.html" target="content7">帮助信息</a></li>
</ul>
</div>
<div id="content">
<div id="welcome" class="content" style="display:block;">
<div align="center">
<p> </p>
<p><strong>欢迎使用用户管理系统！</strong></p>
<p> </p>
</div>
</div>
<div id="c0" class="content"><iframe name="content1" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c1" class="content"><iframe name="content2" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c2" class="content"><iframe name="content3" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c3" class="content"><iframe name="content4" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c4" class="content"><iframe name="content5" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c5" class="content"><iframe name="content6" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
<div id="c6" class="content"><iframe name="content7" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto"></iframe></div>
</div>
</div>
<div id="footer">copyright for lalasxc </div>
</body>
</html>
