public function redirect($page = null, $args = array())
    {
        /*
         * Redirect to specified page. $args are $_GET arguments.
         * Use this function instead of issuing header("Location") stuff
         */
        $url = $this->url($page, $args);
        if ($this->app->isAjaxOutput()) {
            if ($_GET['cut_page']) {
                echo '<script>'.$this->app->js()->redirect($url).'</script>Redirecting page...';
                exit;
            } else {
                $this->app->js()->redirect($url)->execute();
            }
        }
        header('Location: '.$url);
        exit;
    }