<!-- BEGIN principal_tab -->
<td>
  <table>
    <tr>
      {principal_buttons}
    </tr>
  </table>
</td>
<!-- END principal_tab -->

<!-- BEGIN principal_button -->
<td align="left">
  <form action="{principal_action}" method="post">
    <input class="{principal_class_css}" type="submit" name="{principal_name}" value="{principal_value}" />
  </form>
</td>
<!-- END principal_button -->
