public static function bbSmileyPath() { if (!isset(self::$bbSmileyPath)) { $path = sprintf('img/%s/smile/', GWF_ICON_SET); if (is_dir(GWF_WWW_PATH . $path)) { self::$bbSmileyPath = $path; } else { self::$bbSmileyPath = 'img/default/smile/'; } } return self::$bbSmileyPath; }