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JavaScript面向物件選項卡

<!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>
<style>
#div1 input {background:#CCC;}
#div1 .active {background:yellow;}
#div1 div {width:200px; height:200px; background:#CCC; display:none;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文件</title>
<script>
window.onload=function ()
{
	var oTab=new TabSwitch('div1');
};

function TabSwitch(id)
{
	var oDiv=document.getElementById(id);
	this.aBtn=oDiv.getElementsByTagName('input');
	this.aDiv=oDiv.getElementsByTagName('div');
	var i=0;
	
	var _this=this;
	
	for(i=0;i<this.aBtn.length;i++)
	{
		this.aBtn[i].index=i;
		this.aBtn[i].onclick=function ()
		{
			_this.tab(this);
		};
	}
}

TabSwitch.prototype.tab=function (oBtn)
{
	for(i=0;i<this.aBtn.length;i++)
	{
		this.aBtn[i].className='';
		this.aDiv[i].style.display='none';
	}
	oBtn.className='active';
	this.aDiv[oBtn.index].style.display='block';
};
</script>
</head>

<body>
<div id="div1">
	<input class="active" type="button" value="教育" />
	<input type="button" value="財經" />
	<input type="button" value="aaa" />
	<div style="display:block;">1asdfasdfds</div>
	<div>2xzcvxzcv</div>
	<div>5332342345</div>
</div>
</body>
</html>