m_url = nsnull;
nsSmtpTestDriver::nsSmtpTestDriver(nsINetService * pNetService,                                   PLEventQueue *queue){	m_urlSpec[0] = '\0';	m_urlString[0] = '\0';	m_url = nsnull;	m_protocolInitialized = PR_FALSE;	m_runningURL = PR_TRUE;    m_eventQueue = queue;	m_netService = pNetService;	NS_IF_ADDREF(m_netService); 		InitializeTestDriver(); // prompts user for initialization information...	m_transport = nsnull;	m_SmtpProtocol = nsnull; // we can't create it until we have a url...}