public static function isLogin() {

		if ( isset( $_SESSION[ md5( 'login' . self::$app->url->baseUrl() ) ] ) &&
		     base64_decode( $_SESSION[ md5( 'login' . self::$app->url->baseUrl() ) ] ) == 'TRUE'
		) {
			return TRUE;
		} else {
			return FALSE;
		}
	}