/**
  * switches the group view to the via URL parameter 'ID' given type (if
  * existant)
  *
  * @return void
  *
  * @author Sebastian Diel <*****@*****.**>
  * @since 10.02.2011
  * @see self::$productGroupHolderViews
  */
 public function switchGroupHolderView()
 {
     if (array_key_exists('ID', $this->owner->urlParams)) {
         SilvercartGroupViewHandler::setGroupHolderView($this->owner->urlParams['ID']);
     }
     $this->owner->redirect($this->owner->Link());
 }