public void saveUser(User user) {
		File f = new File(users, user.getUserID() + ".sav");
		try {
			if (!f.exists())
				f.createNewFile();
			ObjectOutputStream out = new ObjectOutputStream(
					new FileOutputStream(f));
			out.writeObject(user);
			out.flush();
			out.close();
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}