急问:如何实现IE在windows下的状态闪烁？？？

要完成此效果把如下代码加入到<body>区域中<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function shake(n) {
if (parent.moveBy) {
for (i = 10; i > 0; i--) {
for (j = n; j > 0; j--) {
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
parent.moveBy(0,i);
parent.moveBy(i,0);
parent.moveBy(0,-i);
parent.moveBy(-i,0);
         }
      }
   }
}
//  End -->
</script>
<div align="center">
<input type=button onClick="shake(2)" value="激活窗口">
</div>