protected function _get( Zend_Config $config, array $parts )
	{
		if( ( $key = array_shift( $parts ) ) !== null && isset( $config->$key ) )
		{
			if( $config->$key instanceof Zend_Config )
			{
				if( count( $parts  ) > 0 ) {
					return $this->_get( $config->$key, $parts );
				}

				return $config->$key->toArray();
			}

			return $config->$key;
		}

		return null;
	}