How to render aspx file using ajax

Hi,

i need to update particular div content through ajax.


For Example:

in home.aspx file

<div id="id1" >
      <!-- here i have student table  -->
  </div>
 <asp:button id="112" text="change table" runat=server >

in staff.aspx file

<table>
 <!--staff table entries here -->
</table>

When i click 'change table' button .i need to replace student table to staff table through ajax .
staff table code is in another seperate aspx file (staff.aspx).



here i need to render whole code from staff.aspx and update innerhtml of that div in home.aspx page.

is it possible? pls guide me

Thanks,
Seen