static public function start($name=null){
		if (isset($_SESSION)) return;
		$ln = static::name($name);
    // Obfuscate IDs
    ini_set('session.hash_function', 'whirlpool');
		session_cache_limiter('must-revalidate');
    if (session_status() == PHP_SESSION_NONE) {
		  @session_start();
    }
    static::trigger("start", $name?:$ln);
	}