private boolean onCloseButton(int x, int y) {
		int xStart = getWidth() / 3;
		int xEnd = xStart + width();
		int yStart = getWidth() / 3;
		int yEnd = yStart + SLOT_SIZE / 2;
		if (x > xStart && x < xEnd && y > yStart && y < yEnd) {
			return true;
		}
		return false;
	}