实现tab标签切换效果

<title>DIV层切换</title> 
<script language="JavaScript" type="text/javascript"> 
function ChangeDiv(divId,divName,zDivCount) 
{ 
for(i=0;i<=zDivCount;i++) 
{ 
document.getElementById(divName+i).style.display="none"; 
//将所有的层都隐藏 
} 
document.getElementById(divName+divId).style.display="block"; 
//显示当前层 
} 
</script> 
</head> 
<body> 
<span onMouseOver="ChangeDiv('0','JKDiv_',2)" style="cursor:hand;">内容一</span> 
<span onMouseOver="ChangeDiv('1','JKDiv_',2)" style="cursor:hand;">内容二</span> 
<span onMouseOver="ChangeDiv('2','JKDiv_',2)" style="cursor:hand;">内容三</span> 
<div id="JKDiv_0" style="font-size:14px;margin:10px;color:#FF0000;  border:1px solid red; width:200px; height:200px">内容部分第一区</div> 
<div id="JKDiv_1" style="display:none;font-size:14px;margin:10px;color:#FF0000; border:1px solid red;width:200px; height:200px">内容部分第二区</div> 
<div id="JKDiv_2" style="display:none;font-size:14px;margin:10px;color:#FF0000;">内容部分第三区</div> 
</body> 

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转载自bao1073740756-126-com.iteye.com/blog/2307818