<!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>无标题文档</title>
<style>
*{ margin:0; padding:0;}
ul{ list-style:none}
body{ font-size:12px}
#tabMenus{ 400px; margin:100px auto 0 auto;overflow:hidden; border:#ccc solid 1px; border-bottom:none;}
#tabMenus li{ float:left; 100px; height:25px; line-height:25px; background:#ccc; text-align:center}
#tabMenus li a{ display:block; height:100%; color:#000000; text-decoration:none}
#tabMenus li.current{background:#fff}
#tabMenus li.usual{background:#ccc;}
#tabCons{ clear:both;400px; margin:0 auto; overflow:hidden; border:#ccc solid 1px; border-top:none}
#tabCons .con{ float:left; padding:10px; 380px; display:none}
</style>
<script>
function tab(menus,cons,openClass,closeClass,speed){
var count = menus.length; //选项的个数。
var now=1; //记录当前滑过的选项。
var timer=null; //
var clearOpenClass = function(){//清除滑过样式。
for(var i = 0 ; i < count; i++)
{
menus[i].className = closeClass;
cons[i].style.display = "none";
}
};
var changeTab = function(v){//添加滑过样式以及内容切换。
clearOpenClass();
menus[v].className = openClass;
cons[v].style.display = "block";
now= v+1;
};
var autoChange = function (){//自动切换
if(now<count){
changeTab(now);
}else{
now = 0;
changeTab(now);
}
};
var setAuto = function (){timer = setInterval(autoChange, speed)};
var clearAuto = function (){clearInterval(timer)};
this.init = function(){//初始化。
if(menus.length != cons.length){ return;}
clearOpenClass();
for(var i = 0 ; i < count; i++){
menus[i].value = i;
}
menus[0].className='current';
cons[0].style.display = "block";
};
this.autoAction = function(){//自动切换时的动作。
setAuto();
for(var i = 0 ; i < count; i++){
menus[i].onmouseover = function(){clearAuto();changeTab(this.value);};
menus[i].onmouseout = function(){setAuto();};
}
};
this.usualAction = function(){//普通切换时的动作。
for(var i = 0 ; i < count; i++){
menus[i].onmouseover = function(){changeTab(this.value);};
}
};
};
tab.prototype = {
usual : function(){
this.init();
this.usualAction();
},
auto : function(){
this.init();
this.autoAction();
}
}
function $(id){return document.getElementById(id);}
window.onload=function(){
var menus=$('tabMenus').getElementsByTagName('li');
var cons=$('tabCons').getElementsByTagName('div');
var t=new tab(menus,cons,'current','usual',2000);
t.auto();
}
</script>
</head>
<body>
<ul id="tabMenus">
<li><a href="#">1111</a></li>
<li><a href="#">2222</a></li>
<li><a href="#">3333</a></li>
<li><a href="#">4444</a></li>
</ul>
<div id="tabCons">
<div class="con">1111</div>
<div class="con">2222</div>
<div class="con">3333</div>
<div class="con">4444</div>
</div>
</body>
</html>
把这代码复制放到文本中。然后保存成.html格式。在浏览器中打开即可看效果!