/**
  * Support for goto php 
  *
  * @return void
  * @static
  */
 public static function _goto($a_target)
 {
     global $ilAccess, $ilErr, $lng;
     include_once './Services/ContainerReference/classes/class.ilContainerReference.php';
     $target_ref_id = ilContainerReference::_lookupTargetRefId(ilObject::_lookupObjId($a_target));
     include_once './Modules/Category/classes/class.ilObjCategoryGUI.php';
     ilObjCategoryGUI::_goto($target_ref_id);
 }