function get_product_image_src($entry, $name, $lang) {

    $filename = get_filename($entry, $lang, FALSE);
    $cfilename = file_directory_path() . '/' . get_product_file_path($lang) . '/' . $filename;

    if (!file_exists($cfilename)) {
        $filename = 'sites/default/files/kein-bild.png';
    } else {
        $filename = 'sites/default/files/' . get_product_file_path($lang) .'/' . $filename;
    }
    return '/' . $filename;
}