You are right.
My problem is the table.
If i put the <div> as below:
<table>
<tr><td><table>
<div><tr><td><table><tr><td>testing</td></tr></table></td></tr></div>
</table></td></tr>
</table>
It works in IE but not netscape. If i put it opposite:
<table>
<tr><td>
<div>
<table>
<tr><td><table><tr><td>testing</td></tr></table></td></tr>
</table></div></td></tr>
</table>
It totally will not work.