function OnLoadPageData()
 {
     # get item to be deleted
     if (!is_object($this->data_object)) {
         $id = $this->manager->GetItemId($this->data_object);
         $this->manager->ReadById(array($id));
         $this->data_object = $this->manager->GetFirst();
     }
     # tidy up
     unset($this->manager);
 }