<!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=utf-8" />
<title>无标题文档</title>
<style>
#div1 div{width:200px;height:200px;border:1px solid #F00;display:none;}
.active{ background:red;}
</style>
<script type="text/javascript" src="jquery-1.10.1.min.js"></script>
<script>
/*window.onload = function(){
var oDiv = document.getElementById('div1');
var aInput = oDiv.getElementsByTagName('input');
var aDiv = oDiv.getElementsByTagName('div');
alert(aInput.length);
for(var i=0;i<aInput.length;i++){
aInput[i].index = i;
aInput[i].onclick = function(){
for(var i=0;i<aInput.length;i++){
aInput[i].className = '';
aDiv[i].style.display = 'none';
}
aInput[this.index].className = 'active';
aDiv[this.index].style.display = 'block';
};
}
};*/
$(function(){
$('#div1').find('input').click(function(){
$('#div1').find('input').attr('class','');//将所有元素属性去掉
$('#div1').find('div').css('display','none');
$(this).attr('class','active');
$('#div1').find('div').eq($(this).index()).css('display','block');
});
});
</script>
</head>
<body>
<div id="div1">
<input class="active" type="button" value="1"/>
<input type="button" value="2"/>
<input type="button" value="3"/>
<div style="display:block">111</div>
<div>222</div>
<div>333</div>
</div>
</body>
</html>