public void drawMarks(Graphics g, int aMarks)
	{
		int x = FaceStyle.NUM_LEFT + FaceStyle.NUM_WIDTH * (FaceStyle.NUM_NUM - 1);
		int y = FaceStyle.NUM_TOP;
	
		int temp = aMarks;	// ȵõ
		int dig = 0;
		for (int i=0; i<FaceStyle.NUM_NUM; i++)
		{
			if (temp == 0)
			{
				break;
			}
			dig = temp % 10;
			g.drawImage(mImgNum, x, y, x+FaceStyle.NUM_WIDTH, y+FaceStyle.NUM_HEIGHT, 
					dig*FaceStyle.NUM_WIDTH, 0, (dig+1)*FaceStyle.NUM_WIDTH, FaceStyle.NUM_HEIGHT, this);
			x -= FaceStyle.NUM_WIDTH;
			temp /= 10;
		}
	}