网页选项卡（TAB）今天晚上搞了一晚上这个
<!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 content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>新闻评论技术点评</title>
<script >
function setTab(m,n)
{
var tli=document.getElementById("menu"+m).getElementsByTagName("li"); /*获取选项卡的LI对象*/
var mli=document.getElementById("main"+m).getElementsByTagName("ul"); /*获取主显示区域对象*/
for(i=0;i<tli.length;i++)
{
tli[i].className=i==n?"hover":""; /*更改选项卡的LI对象的样式，如果是选定的项则使用.hover样式*/
mli[i].style.display=i==n?"block":"none"; /*确定主区域显示哪一个对象*/
}
}
</script>
<style type="text/css">
<!--
body,div,ul,li{
margin:0 auto;
padding:0;
}
body{
font:12px "宋体";
text-align:center;
}
a:link{
color:#00F;
text-decoration:none;
}
a:visited {
color: #00F;
text-decoration:none;
}
a:hover {
color: #c00;
text-decoration:underline;
}
ul{
list-style:none;
}
.main{
clear:both;
padding:8px;
text-align:center;
}
#tabs1{
text-align:left;
width:400px;
}
.menu1box{
position:relative;
overflow:hidden;
height:22px;
width:400px;
text-align:left;
}
#menu1{
position:absolute;
top:0;
left:0;
z-index:1;
}
#menu1 li{
float:left;
display:block;
cursor:pointer;
width:72px;
text-align:center;
line-height:21px;
height:21px;
}
#menu1 li.hover{
background:#fff;
border-left:1px solid #333;
border-top:1px solid #333;
border-right:1px solid #333;
}
.main1box{
clear:both;
margin-top:-1px;
border:1px solid #333;
height:181px;
width:400px;
}
#main1 ul{
display: none;
}
#main1 ul.block{
display: block;
}
#tabs2 {
height: 200px;
width: 400px;
border: 1px solid #cbcbcb;
background-color: #f2f6fb;
}
-->
</style>
</head>
<body>
<div id="tabs1">
<div class="menu1box">
<ul id="menu1">
<li onmouseover="setTab(1,0)"><a href="#">新闻</a></li>
<li onmouseover="setTab(1,1)"><a href="#">评论</a></li>
<li onmouseover="setTab(1,2)"><a href="#">技术</a></li>
<li onmouseover="setTab(1,3)"><a href="#">点评</a></li>
</ul>
</div>
<div class="main1box">
<div class="main" id="main1">
<ul id="tabs2"><li>新闻列表asdfasdfas</li></ul>
<ul id="tabs2"><li>评论列表asdfas</li></ul>
<ul id="tabs2"><li>技术列表asdf</li></ul>
<ul id="tabs2"><li>点评列表asfd</li></ul>
</div>
</div>
</div>
</body>
</html>
