public void setMarkState (int i)
	{
		setState(0);
		switch (i)
		{
			case Field.SQUARE:
				Square.setState(true);
				break;
			case Field.TRIANGLE:
				Triangle.setState(true);
				break;
			case Field.CROSS:
				Cross.setState(true);
				break;
			case Field.CIRCLE:
				Circle.setState(true);
				break;
		}
		switch (i)
		{
			case Field.SQUARE:
				IB.setState("square", true);
				break;
			case Field.TRIANGLE:
				IB.setState("triangle", true);
				break;
			case Field.CROSS:
				IB.setState("mark", true);
				break;
			case Field.CIRCLE:
				IB.setState("circle", true);
				break;
		}
	}