public void mouseClicked(MouseEvent e) {
			Point p = e.getPoint();
			if (SwingUtilities.isRightMouseButton(e)) {
				if (isInNavigationImage(p)) {
					navZoomFactor = 1.0 - zoomIncrement;
					zoomNavigationImage();
				} else if (isInImage(p)) {
					zoomFactor = 1.0 - zoomIncrement;
					zoomImage();
				}
			} else {
				if (isInNavigationImage(p)) {
					navZoomFactor = 1.0 + zoomIncrement;
					zoomNavigationImage();
				} else if (isInImage(p)) {
					zoomFactor = 1.0 + zoomIncrement;
					zoomImage();
				}
			}
		}