public void actionPerformed(ActionEvent e)
	{
		String command = e.getActionCommand();
		if (command.equals("Exit")){
			exit();
		}
		else if (command.equals("Add")){
			addClicked();
		}
		else if (command.equals("Save")){
			saveClicked();
		}
		else if (command.equals("Remove")){
			removeClicked();
		}
		else if (command.equals("First")){
			firstClicked();
		}
		else if (command.equals("Last")){
			lastClicked();
		}
		else if (command.equals("Previous")){
			previousClicked();
		}
		else if (command.equals("Next")){
			nextClicked();
		}
	}
