Рейтинг фото неработает

/*
-----------------------------------------------------------------
Функция голосований за фотографии
-----------------------------------------------------------------
*/
function vote_photo($arg = null)
{
    global $lng, $datauser, $user_id, $ban;

    if ($arg) {
        $rating = $arg['vote_plus'] - $arg['vote_minus'];
        if ($rating > 0)
            $color = 'C0FFC0';
        elseif ($rating < 0)
            $color = 'F196A8';
        else
            $color = 'CCC';
        $out = '<div class="gray">' . $lng['rating'] . ': <span style="color:#000;background-color:#' . $color . '">&#160;&#160;<big><b>' . $rating . '</b></big>&#160;&#160;</span> ' .
            '(' . $lng['vote_against'] . ': ' . $arg['vote_minus'] . ', ' . $lng['vote_for'] . ': ' . $arg['vote_plus'] . ')';
        if ($user_id != $arg['user_id'] && !$ban && $datauser['postforum'] > 10 && $datauser['total_on_site'] > 1200) {
            // Проверяем, имеет ли юзер право голоса
            $req = mysql_query("SELECT * FROM `cms_album_votes` WHERE `user_id` = '$user_id' AND `file_id` = '" . $arg['id'] . "' LIMIT 1");
            if (!mysql_num_rows($req))
                $out .= '<br />' . $lng['vote'] . ': <a href="album.php?act=vote&amp;mod=minus&amp;img=' . $arg['id'] . '">&lt;&lt; -1</a> | ' .
                    '<a href="album.php?act=vote&amp;mod=plus&amp;img=' . $arg['id'] . '">+1 &gt;&gt;</a>';
        }
        $out .= '</div>';

        return $out;
    } else {
        return false;
    }
}

/*