private ClientController() throws RemoteException, NotBoundException {
		String hostname = JOptionPane.showInputDialog("Server name?", "localhost");
		Registry registry = LocateRegistry.getRegistry(hostname, RMI_Server.REGISTRY_PORT);
		ICatalogue proxyCatalogue = (ICatalogue)registry.lookup(RMI_Server.REMOTE_OBJECT_NAME);

		catalogue = proxyCatalogue;

	}