public void actionPerformed(ActionEvent e) {
				if(visualizationLevel == 2){
					theFrame.getContentPane().removeAll();
					theFrame.getContentPane().add(firstLevelInterface);
					theFrame.revalidate();
					theFrame.repaint();
				}
				else if(visualizationLevel == 3) {
					transitionBackToSecondLevel();
				}
            }