这段js小程序怎么运行不起来啊 ?
<html><head>
<title>shakewindow</title>
<META content="text/html;charset=gb2312" http-equiv=Content-type>
<style>
.pl{border:2 ridge #0000FF;background-color:#ffffce;font-size:10pt; width:500
}
</style>
<script>
<!--
function shakewindow(n){
if(self.moveBy){
for(i=10;i>10;i--){
for(j=n;j>0;j--){
self.moveBy(0,i);
self.moveBy(i,0);
self.moveBy(0,-i);
self.moveBy(-i,0);
}
}
}
}
-->
</script>
<META content="Microsoft FrontPage 4.0" name=GENERATOR>
</HEAD>
<BODY bgColor=#ffff vLink=#0000ff><center>
<p class=pl align="center">当按下" 开始振动窗口& quot; 按钮后,您会看到整个屏幕都在颤动,<br>非常非常酷!</p>
<form>
<input onclick="shakewindow(3)" type=button value="开始振动窗口">
</form>
</center>
</body>
</html>