[jQuery] Jquery tablesorter problem

[varun]

Hi
I was trying to use jquery table sorter plugins:

when ever I use it like :
<table  id="table1" cellspacing="1" class="tablesorter" >
//row and column here
</table>

and jquery:
$("#table1")
    .tablesorter({widthFixed: true, widgets: ['zebra']})
    .tablesorterPager({container: $("#pager")})

It works fine..

how ever if i use :
<table  id="table1" cellspacing="1" class="tablesorter"
runat="server">
//row and column here
</table>

and jquery:
$("#"+serverIdPrefix+"table1")// serverIdPrefix nicely found what is
attached by server to id of table
    .tablesorter({widthFixed: true, widgets: ['zebra']})
    .tablesorterPager({container: $("#pager")})

it doesnt work when ever table is runat="server"

can some one help?

Thanks
Varun