Anonymous

<html>
<body>

	<script language='javascript'>

	function setit()
	{
	alert(document.getElementById("topic_tr").innerHTML);
	document.getElementById("topic_tr").innerHTML='<td colspan=2> REPLACED </td>';
	}
	</script>

	<table border=1 cellspacing=10 cellpadding=10>
	<tr id="topic_tr" >
		<td> 1 </td>
		<td> 2 </td>
		<td >4 </td>
	</tr>
	<tr><td> END </td></tr>
	</table>

<a href='#nowhere' onclick='setit();'>CLICK HERE</a>
</body>
</html>