private void whoisonline(ServerClient activeclient) throws IOException
	{
		ArrayList<String> clientsOnline = new ArrayList<String>();
		for (ServerClient sc : connectedClients)
		{
			if (sc != activeclient)  // dont ask active client for its name he knows that already ^^
			{
				clientsOnline.add(sc.getNickname());
			}
		}
		try
		{
			Thread.sleep(10);
		} catch (InterruptedException e)
		{
			e.printStackTrace();
		}
		activeclient.getSt().writeMsg(activeclient.getClientsocket(), activeclient.getOut(), new Msg("", "server", 'C', clientsOnline));
	}