private void StartButton_Click(object sender, RoutedEventArgs e)
        {
            if (ServerSelect.IsChecked != null && ServerSelect.IsChecked == true) {
                ServerWindow win = new ServerWindow() { Port = int.Parse(serverPort.Text) };
                win.Init();
                win.Show();
            } else {
                ClientWindow win = new ClientWindow() { Port = int.Parse(clientPort.Text), Address = clientAddr.Text, ourNickname = clientNick.Text };
                win.Init();
                win.Show();
            }

            Close();
        }