<tr><td onmouseover="inset(this)" onmouseout="outset(this)"><a href="http://www.microsoft.com">Explorer</a></td></tr>
<html>
<head>
<script type="text/javascript">
function inset(elmnt)
{
elmnt.style.border="inset 2"
}
function outset(elmnt)
elmnt.style.border="outset 2"
</script>
<style>
td
background:C0C0C0;
border:2px outset;
</style>
</head>