public function showOrderButtonOnTop()
    {
        if ($this->_blShowOrderButtonOnTop === null) {
            $this->_blShowOrderButtonOnTop = false;
            $this->_blShowOrderButtonOnTop = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('blShowOrderButtonOnTop');
        }

        return $this->_blShowOrderButtonOnTop;
    }