<html xmlns="
http://www.w3.org/1999/xhtml">
<head>
<script>
function boom()
{
document.getElementById('A').setAttribute('colspan', 0);
document.getElementById('B').setAttribute('rowspan', 3);
}
</script>
</head>
<body onload="boom();">
<table>
<tr>
<td id="A">TD</td>
<td id="B" colspan="3">TD</td>
</tr>
</table>
</body>
</html>
