controls getting lost when page is loaded in mozilla

[pegassus]

Dear sir,

I checked my code ..its perfect..During the pageload controls created dynamically are there.When i checked the source i can view the generated html inside the div(controls are created inside the tables.tables are inside the div) .But after i click the submit button and view the source im unable to see anything inside the div..This happens in mozilla only.


code snippet inline
once the page is loaded

<div id=aa  runat="server">
<table id="tbl" cellspacing="3" cellpadding="0" width="330">
<tr>
<td colspan="2"><span id="lbl" style="display:inline-block;height:17px;width:150px;">lbl11</span></td>
</tr>
<tr>
<td width="170" align="left" valign="middle"><span id="lblaa" style="display:inline-block;height:17px;width:150px;">sddsd</span></td>
<td width="160" align="right" valign="middle">
&lt;select id=sel  runat="server"&gt;
&lt;option value="abc"&gt;sss&lt;/option&gt;
&lt;option value="abc"&gt;sss&lt;/option&gt;
&lt;/select&gt;
</td>
</tr>
...next tr starts  and it goes on and on...
</table>