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