/**
  * Allows a child control to remove a button from the list of those which alter the state of the control, rather than initiating a save
  *
  * @param string $s_id
  */
 public function RemoveInternalButon($s_id)
 {
     parent::RemoveInternalButon($s_id);
     return $this->controlling_editor->RemoveInternalButton($s_id);
 }