function removeallitem()
 {
     $itemId = $this->urlParams['ID'];
     if ($itemId) {
         ShoppingCart::remove_all_item($itemId);
         if (!$this->isAjax()) {
             Director::redirectBack();
         }
     }
 }
 /**
  * Ajax method to set an item quantity
  */
 function setquantityitem($request)
 {
     $quantity = $request->getVar('quantity');
     $product = $this->buyableFromURL();
     if (is_numeric($quantity) && $product) {
         $item = ShoppingCart::get_item($this->urlFilter());
         if ($quantity > 0) {
             if (!$item) {
                 if ($item = self::create_order_item($product, $quantity, self::get_clean_param_array($this->getRequest()->getVars()))) {
                     $item->Quantity = $quantity;
                     self::add_new_item($item);
                 }
             } else {
                 ShoppingCart::set_quantity_item($item, $quantity);
             }
         } elseif ($item) {
             ShoppingCart::remove_all_item($item);
             return self::return_data("success", "Item removed completely");
             //TODO: i18n
         }
         return self::return_data("success", "Quantity set successfully");
         //TODO: i18n
     }
     return self::return_data("failure", "Quantity provided is not numeric");
     //TODO: i18n
 }