<html><body><form runat="server"><table id="table1" border="1" runat="server"> <tr> <td>Cell 1</td> <td>Cell 2</td> </tr> <tr> <td>Cell 3</td> <td>Cell 4</td> </tr></table><input type="button" value="Change Contents" OnServerClick="submit" runat="server"/></form></body></html>