LinkButton Click Event not firing

Hi all,

I dono wat happen to my code. It was working quite fine. But now link button click event is not firing. This linkbutton was used for navigation; first,next,previous,last.I changed the code and just gave a response.redirct code,but that too didnt worked.

Can anyone help me in this????

<TD align="center" width="233" bgColor="gold" colSpan="1" rowSpan="1">
<asp:LinkButton id="hrefFirst" runat="server" BackColor=&q ...