public void showWinning(JottoModel model) {
		int tryAgain = JOptionPane.showConfirmDialog(null, 
                                    "The answer was " + model.targetWord + "\n" +
                                    "You got the answer in " + model.nGuess + " tries!!\n" +
                                    "Play again?",
                                    "Congratulation!!!", 
                                    JOptionPane.YES_NO_OPTION);
        if(tryAgain == JOptionPane.YES_OPTION) {
            model.reset();
        }
        else if(tryAgain == JOptionPane.NO_OPTION) {
            System.exit(0);
		}
	}