private void sendExistingRooms(ServerClient activeclient)
	{
		HashMap<String, ArrayList<String>> existingRooms = new HashMap<String, ArrayList<String>>();
		for (Room r : rooms)
		{
			ArrayList<String> users = new ArrayList<String>();
			for (ServerClient sc : r.getClientsInRoom())
			{
				users.add(sc.getNickname());
			}
			existingRooms.put(r.getName(), users);
		}
		try
		{
			Thread.sleep(10);
		} catch (InterruptedException e)
		{
			e.printStackTrace();
		}
		activeclient.getSt().writeMsg(activeclient.getClientsocket(), activeclient.getOut(), new Msg("", "server", 'R', existingRooms));
	}