这是一段非常简单的javascript,但效果却很有趣。可是总报错，谁先调试通分数都给你

<html>
<head>
<title>let's shake it!!</title>
</head>
<body>
<script language="JavaScript">
function surfto(form){
var myindex=form.select1.selectedIndex
if(form.select1.options[myindex].value!=null){
parent.main.location.href=form.select1.options[myindex].value;
}
}
</script>
<script language="JavaScript1.2">
function shake(n){
if(window.top.moveBy){
for(i=10;i>0;i--){
for(j=n;j>0;j--){
window.top.moveBy(0,i);
window.top.moveBy(i,0);
window.top.moveBy(0,-i);
window.top.moveBy(-i,0);
}
}
}
}</script>
<script language="JavaScript">
function bejesus(htmlfile){
parent.main.location.href=htmlfile;
}
</script>
<p align="center"><img border="0" onmousemove=shake(10) src="任意.jpg" width="150" height="100"></p>
</body>
</html>