/**
  * get properties (offline)
  *
  * @access public
  * @param
  * 
  */
 public function getProperties()
 {
     global $lng;
     include_once 'Modules/RemoteGroup/classes/class.ilObjRemoteGroup.php';
     if ($org = ilObjRemoteGroup::_lookupOrganization($this->obj_id)) {
         $this->addCustomProperty($lng->txt('organization'), $org, false, true);
     }
     if (!ilObjRemoteGroup::_lookupOnline($this->obj_id)) {
         $this->addCustomProperty($lng->txt("status"), $lng->txt("offline"), true, true);
     }
     return array();
 }