public void drawOneBall(Graphics g, int aBallColor, int aType, int ai, int aj)
	{
		int dx = ai * (FaceStyle.BALL_WIDTH);
		int dy = aj * (FaceStyle.BALL_HEIGHT);
		int sx = (aBallColor-1) * FaceStyle.BALL_WIDTH;
		int sy = aType * FaceStyle.BALL_HEIGHT; 
		g.drawImage(mBalls, dx, dy, dx+FaceStyle.BALL_WIDTH, dy+FaceStyle.BALL_HEIGHT, sx, sy, sx+FaceStyle.BALL_WIDTH, sy+FaceStyle.BALL_HEIGHT, this);
	}