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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta charset="utf-8">
<title>JS滑动</title>
<style>
*{padding:0;margin:0;}
.tagBox{border:1px solid #ddd; margin:50px auto;width:700px;height:239px}
.tagNav {height:30px; border-bottom:1px solid #ddd; background:#f5f5f5;}
.tagNav li {float:left;height:30px; line-height:30px; list-style:none; padding:0 15px;}
.tagNav li.curTag { background:#fff; margin-bottom:-1px; position: relative; height:31px; border-left:1px solid #ddd; border-right:1px solid #ddd;}
.tagNav li:first-child.curTag{ border-left:none}
.tagCon { padding:10px;}
.tagCon div{ display:none}
.tagCon div.curTag {display: block}
</style>
</head>
<body>
<div class="tagBox">
<div class="tagNav" id="one">
<ul>
<li class="curTag" id="one1" onMouseMove="showTag(‘one‘,1)">A</li>
<li id="one2" onMouseMove="showTag(‘one‘,2)">B</li>
<li id="one3" onMouseOver="showTag(‘one‘,3)">C</li>
<li id="one4" onMouseOver="showTag(‘one‘,4)">D</li>
<li id="one5" onMouseOver="showTag(‘one‘,5)">E</li>
<li id="one6" onMouseOver="showTag(‘one‘,6)">E</li>
</ul>
</div>
<div class="tagCon">
<div class="curTag" id="oneCon1">AAA</div>
<div id="oneCon2">BBB</div>
<div id="oneCon3">CCC</div>
<div id="oneCon4">DDD</div>
<div id="oneCon5">EEE</div>
<div id="oneCon6">FFF</div>
</div>
</div>
<script>
function showTag(name,cur){
var n=document.getElementById(name).getElementsByTagName("li").length; //li 根据上面的tagNav中的tag来变化
for(i=1;i<=n;i++){
var menu=document.getElementById(name+i);
var con=document.getElementById(name+"Con"+i);
menu.className=i==cur?"curTag":"";
con.style.display=i==cur?"block":"none";
}}
</script>
</body>
</html>
//curTag用来控制样式 例如 .tagNav li.curTag { background: url(1.jpg) no-repeat; margin-bottom:-1px; position: relative; height:31px; border-left:1px solid #ddd; border-right:1px solid #ddd;} 可以定义鼠标在上面是显示的背景，字体的样式等。
.tagNav li.curTag a{color: #fff;} 可以设置鼠标在上面时字体显示白色。
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原文地址：http://www.cnblogs.com/cbboys/p/4525772.html
