public function addTransientMessage($message, $options = null) {
		$options = $this->_mergeOptions($options);
		$options['message'] = $message;

		$messages = (array)Configure::read('TransientFlash.' . $options['key']);
		if ($messages && count($messages) > $this->getConfig('limit')) {
			array_shift($messages);
		}
		$messages[] = $options;
		Configure::write('TransientFlash.' . $options['key'], $messages);
	}