public void welcomeWindow()
        {
            //Clean a possible previous game
            this.WelcomeWindow = null;
            this.GameWindow = null;
            this.PlayingGameWindow = null;
            this.ResultWindow = null;
            GC.Collect();
            GC.WaitForPendingFinalizers();

            this.WelcomeWindow = new WelcomeWindow(this.Game, this);
        }
 public void resultWindow()
 {
     this.ResultWindow = new ResultWindow(this.Game, this);
 }