how to make a popup div with jQuery

i want to popup a div when i click on a link my popup with jQuery, i do not like the SharePoint Modal dialog. i tried with jQuery wit no way any help please.

  <a href="">my modal</a>
   <div id="dialog">
     <table>
         <tr>
             <td width="150px">Select Excel File :
             </td>
             <td width="600px">
                 <asp:FileUpload ID="FileUpload1" runat="server" Width="441px" />
                 <asp:Button ID="btnUpload" runat="server" OnClick="btnUpload_Click"  
                Text="Upload Excel Data" />
             </td>
            </tr>
            <tr>
             <td colspan="2" style="text-align: center">
                 <asp:Button ID="btnDownload" runat="server" 
                OnClick="btnDownload_Click" Text="Dowload Data As Excel" />
             </td>
         </tr>
     </table>
 </div>