public static void showGame(int game_no) {
		
		switch(game_no) {
		
		case 0: game_class = new Sudoku();        break;
		case 1: game_class = new RubiksCube();    break;
		case 2: game_class = new SpaceInvaders(); break;
		default: System.out.println("Unknown Game");
		
		}
		
		if(game == null || !game.isVisible()) {
			game = new CFrame(game_type[game_no]);
			game.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
			game.setResizable(false);
			game.setVisible(true);
			game.setSize(dims[game_no][0], dims[game_no][1]);
			game.centerInScreen();
			game.add(game_class);
			
		} else {
			game.setVisible(true);
		}
		
	}