/**
  * @param $item         CommonGLPI object
  * @param $tabnum       (default 1
  * @param $withtemplate (default 0)
  **/
 static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0)
 {
     global $CFG_GLPI;
     if ($item->getType() == __CLASS__) {
         $item->showGetMessageForm($item->getID());
     }
     return true;
 }