-- og en generisk fætter kunne se sådan ud:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"
http://www.w3.org/TR/html4/loose.dtd"><html>
<head>
<title>Tomt dokument</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
html,body{height:100%;margin:0px;border:0px;padding:0px;font-family:tahoma,verdana,arial,sans-serif;font-size:small;}
table{background-color:green;}
</style>
<script language="javascript" type="text/javascript">
<!--
function changeColor(td,color)
{
td.parentNode.getElementsByTagName('TD')[0].style.backgroundColor = color;
}
//-->
</script>
</head>
<body>
<table width="300" border="1">
<tr>
<td id="td123">æsdjv lksd lsdnvsldk vsk</td>
<td onmouseover="changeColor(this,'#123456')" onmouseout="changeColor(this,'')">sldjksd</td>
</tr>
<tr>
<td id="td123">æsdjv lksd lsdnvsldk vsk</td>
<td onmouseover="changeColor(this,'#123456')" onmouseout="changeColor(this,'')">sldjksd</td>
</tr>
<tr>
<td id="td123">æsdjv lksd lsdnvsldk vsk</td>
<td onmouseover="changeColor(this,'#123456')" onmouseout="changeColor(this,'')">sldjksd</td>
</tr>
</table>