<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script >
function zd(u){
var a=['top','left'],b=0;
u=setInterval(function(){
document.getElementById('win').style[a[b%2]]=(b++)%4<2?0:4;
if(b>15){clearInterval(u);b=0}
},32)
}
</script>
</head>
<body id="win" style='position:relative;' border="1">
<button onclick="zd()">振动</button>
<div >asdfasdf<div/>
</body>
</html>