/**
  * getGlobalParentFolderIds
  * @return array $arrGlobalParentFolderIds
  * @author Thomas Schedler <*****@*****.**>
  * @version 1.0
  */
 public function getGlobalParentFolderIds()
 {
     $arrGlobalParentFolderIds = array();
     if ($this->objGlobalParentFolders === null && $this->objPage instanceof Page && $this->objPage->ChildPage() !== null) {
         $this->objGlobalParentFolders = $this->getModelFolders()->loadGlobalParentFolders($this->objPage->ChildPage()->getNavParentId() > 0 ? $this->objPage->ChildPage()->getNavParentId() : $this->objPage->ChildPage()->getParentId(), $this->objPage->ChildPage()->getRootLevelGroupId());
     }
     if (count($this->objGlobalParentFolders) > 0) {
         foreach ($this->objGlobalParentFolders as $objGlobalParentFolder) {
             $arrGlobalParentFolderIds[] = $objGlobalParentFolder->folderId;
         }
     }
     return $arrGlobalParentFolderIds;
 }