public function addBasketGrandTotalParams()
    {
        $basket = $this->getBasket();
        $request = $this->getPayPalRequest();

        $request->setParameter("L_PAYMENTREQUEST_0_NAME0", $this->getLang()->translateString("OEPAYPAL_GRAND_TOTAL"));
        $request->setParameter("L_PAYMENTREQUEST_0_AMT0", $this->formatFloat($basket->getSumOfCostOfAllItemsPayPalBasket()));
        $request->setParameter("L_PAYMENTREQUEST_0_QTY0", 1);
    }