protected function setServer()
	{
		$server = $this->config->get('gateway.zarinpal.server', 'germany');
		switch ($server) {
			case 'iran':
				$this->serverUrl = $this->iranServer;
				break;
                
			case 'test':
				$this->serverUrl = $this->sandboxServer;
				$this->gateUrl = $this->sandboxGateUrl;
				break;

			case 'germany':
			default:
				$this->serverUrl = $this->germanyServer;
				break;
		}
	}