public function getResult($name=NULL) {
		$result = NULL;
		if(isset($this->payload['result'])) {
			$result = $this->payload['result'];
		} else {
			return NULL;
		}

		if(isset($name)) {
			if(isset($result[$name])) {
				return $result[$name];
			}
		} else {
			return $result;
		}
	}