/**
  * 
  * insertMenueLink
  * 
  * @param String $ErrorString
  * @param String $StatusString
  */
 public function insertMenueLink($ErrorString = "", $StatusString = "")
 {
     if (Controler_Main::getInstance()->getUserLevel() < BACKEND_USERLEVEL) {
         $ControlerStart = new Controler_Start();
         $ControlerStart->start();
         return false;
     }
     $Request = new Request();
     $ErrorString = "";
     $StatusString = "";
     $MenueFinder = new MenueFinder();
     $Content = Content::getEmptyInstance();
     $ContentFinder = new ContentFinder();
     $ContentManager = new ContentManager();
     $LinkName = $Request->getAsString("tb_LinkName");
     $MenueID = $Request->getAsString("MenueID");
     $InsertMenueID = $Request->getAsString("InsertMenueID");
     $Content = $ContentFinder->findByNameAndMenueID($InsertMenueID, $MenueID);
     $ID = $Content->getId();
     if ($ID != 0) {
         $ErrorString .= ":T_MENUE_ERROR2:";
     }
     if (strlen($ErrorString) != 0) {
         $this->showEditMenue($ErrorString, $StatusString);
         return false;
     }
     if ($ContentManager->insertMenueLinkByMenueIdAndLinkedMenueIdInName($MenueID, $InsertMenueID)) {
         $this->showEditMenue("", ":T_MENUE_INSERT_LINK_STATUS:");
     } else {
         $this->showEditMenue("", ":T_MENUE_INSERT_LINK_ERROR:");
     }
 }