直接上代码，
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>窗口抖动</title>
<style>
body{margin:50px; }
#sqq{position:relative;}
span{padding:0 4px}
</style>
<body>
<p><button onclick="mfx()">立即抖动窗口</button>(10秒/次)</p>
<img id="sqq" src="http://luyugao.cn/images/shakeqq.png" />
</body>
<script type="text/javascript">
setInterval("mfx()",10000);
mfx=function(isWin){
var t=0,z=3,del=function(){clearInterval(mfx.ID);return mfx};
del().ID=setInterval(function(){
var i=t/180*Math.PI,x=Math.sin(i)*z,y=Math.cos(i)*z,s=sqq.style;
isWin?window.moveBy(x,y):(s.top=x+'px',s.left=y+'px');
if((t+=90)>1080)del();
},30);
}
</script>