public static function forge($name = 'default', array $config = array())
	{
		if ($exists = static::instance($name))
		{
			\Error::notice('Fieldset with this name exists already, cannot be overwritten.');
			return $exists;
		}

		static::$_instances[$name] = new static($name, $config);

		if ($name == 'default')
		{
			static::$_instance = static::$_instances[$name];
		}

		return static::$_instances[$name];
	}