public function getPictureUrl($iIndex = 1)
    {
        if ($iIndex) {
            $sImgName = false;
            if (!$this->_isFieldEmpty("oxarticles__oxpic" . $iIndex)) {
                $sImgName = basename($this->{"oxarticles__oxpic$iIndex"}->value);
            }

            $sSize = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('aDetailImageSizes');

            return \OxidEsales\Eshop\Core\Registry::getPictureHandler()
                ->getProductPicUrl("product/{$iIndex}/", $sImgName, $sSize, 'oxpic' . $iIndex);
        }
    }