<a href="/index.html" id="myLink" onmouseover="dropshadow()" onmouseout="back()">请把鼠标移动到链接上</a>
<html>
<head>
<style>
a
{
color:black;
height:25;
font:bold;
text-decoration:none;
}
</style>
<script type="text/javascript">
var i
function dropshadow()
i=0
interval=setInterval("makedropshadow(myLink)",10)
function back()
clearInterval(interval)
document.getElementById('myLink').style.filter=false