 
<script language="JavaScript1.2">
function changeto(highlightcolor)
{
source=event.srcElement
if (source.tagName=="TR"||source.tagName=="TABLE")
return
while(source.tagName!="TD")
source=source.parentElement
if (source.style.backgroundColor!=highlightcolor&&source.id!="ignore")
source.style.backgroundColor=highlightcolor
}

function changeback(originalcolor){
if (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")
return
if (event.toElement!=source)
source.style.backgroundColor=originalcolor
}
</script>




<table onMouseover="changeto('lightgreen')" onMouseout="changeback('white')" border=1>

<tr>
<TD id="1">TD Ignore</td>
</tr>

<tr>
<TD id="2">TD Ignore</td>
</tr>


<tr>
<TD id="ignore">TD Ignore</td>
</tr>
</table>

