Set Default form in ASP .NET

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C#

ASP.NET

jQuery

Dear Folks,

I have two form in my asp .net site. when i click the button it will post back to server by using update panel, after post back how to set default form. below is the code

<div>
      <asp:ScriptManager ID="sc" runat="server" EnablePartialRendering="true" LoadScriptsBeforeUI="false" ScriptMode="Release"   > 
      </asp:ScriptManager>
      <asp:UpdatePanel runat="server" ID="uPanel" UpdateMode="Conditional">
         <ContentTemplate>
            <asp:Panel runat="server" ID="pnlEtryForm">
               <table>
                  <tr>
                     <td>
                     </td>
                     <td>
                     </td>
                  </tr>
                  <tr>
                     <td colspan="2">
                        <asp:Button runat="server" ID="btn" Text="test" OnClick="btn_click" />
                     </td>
                  </tr>
               </table>
            </asp:Panel>  
                
            <div id="pnlFormDonate"  runat="server" visible="false">
               <form id="frmDonate" action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post">
               <input class="empty" type="hidden" id="bus" name="business" value="kanag._1336399919_per@gmail.com"/>
               <input type="hidden" name="cmd" value="_donations"/>
               <input type="hidden" name="item_name" value="Donation For IJP"/>
               <input type="hidden" id="itemNo" name="item_number" value="Donate for IJP Ministry"/>
               <input type="hidden" name="amount" id="amt"/>
               <input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif" id="don"
                  border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"/>
               <img alt="" border="0" width="1" height="1" src="https://www.paypal.com/en_US/i/scr/pixel.gif"/>
               </form>
            </div>         
         </ContentTemplate>
      </asp:UpdatePanel>

   </div> 

the above code when i click the button test, it will postback to server and in the code behind i hides the button test and i shows the pnlFormDonate div, after post back i click the paylpal donate image it does not redirect to the paypal page.

note :

it works fine in the firefox but it does not work in IE and Chrome...

pls tell me any one..


Thanks & Regards,
Kanagaraj.M