<tr id="limit_contents"><td>
    <input name="submit" type="hidden" value="1"><input name="enabled" type="checkbox" value="1"><b><span name="style"></span></b>
  </td>
  <td>
    <input name="header" type="text"><span name="pivot_allow" ifset="true">
      <br><input name="pivot" type="checkbox" value="1">Permitir pivoteo en este límite
    </span>
  </td>

</tr>