public function status($key = null, $data = null) {
		if ($data === null) {
			$data = $key;
		}
		if ($data) {
			$this->status = array('code' => null, 'message' => null);

			if (is_numeric($data) && isset($this->_statuses[$data])) {
				$this->status = array('code' => $data, 'message' => $this->_statuses[$data]);
			} else {
				$statuses = array_flip($this->_statuses);

				if (isset($statuses[$data])) {
					$this->status = array('code' => $statuses[$data], 'message' => $data);
				}
			}
		}
		if (!isset($this->_statuses[$this->status['code']])) {
			return false;
		}
		if (isset($this->status[$key])) {
			return $this->status[$key];
		}
		return "{$this->protocol} {$this->status['code']} {$this->status['message']}";
	}