Мобильная версия сайта на поддомене

Открываем engine/init.php
Находим:
if( isset( $_REQUEST['action'] ) and $_REQUEST['action'] == "mobiledisable" ) $_SESSION['mobile_disable'] = 1;
if( isset( $_REQUEST['action'] ) and $_REQUEST['action'] == "mobile" ) { $_SESSION['mobile_enable'] = 1; $_SESSION['mobile_disable'] = 0;}
if ( $config['allow_smartphone'] AND !$_SESSION['mobile_disable'] ) {
    if ( check_smartphone() ) {
        if ( @is_dir ( ROOT_DIR . '/templates/smartphone' ) ) {
            $config['skin'] = "smartphone";
            $smartphone_detected = true;
            $config['allow_comments_wysiwyg'] = "no";
        }
    }
}

Заменяем на:
$msite = clean_url ( 'm.site.ru' ); //m.site.ru меняем на свой поддомен, на котором будет находится смарт версия.
if ( isset( $_REQUEST['action'] ) and $_REQUEST['action'] == 'mobiledisable' )
{
    $_SESSION['mobile_disable'] = true;
    header( 'HTTP/1.1 303 See Other' );
    header( 'Location: ' . $config['http_home_url'] );

    die();
}

if ( $config['allow_smartphone'] )
{
    if ( clean_url ( $_SERVER['HTTP_HOST'] ) != $msite AND ( ( ! $_SESSION['mobile_disable'] AND check_smartphone() ) OR ( isset( $_REQUEST['action'] ) and $_REQUEST['action'] == 'mobile' ) ) )
    {
        $_SESSION['mobile_disable'] = false;
        header( 'HTTP/1.1 303 See Other' );
        header( 'Location: http://' . $msite . '/' );

        die();
    }
    
    if ( clean_url ( $_SERVER['HTTP_HOST'] ) == $msite AND @is_dir ( ROOT_DIR . '/templates/smartphone' ) )
    {
        $config['skin'] = "smartphone";
        $smartphone_detected = true;
        $config['ajax'] = false;
        $config['allow_comments_wysiwyg'] = "no";

    }
}