@Override
				public void actionPerformed(ActionEvent arg0)
				{
					String txt = ((JTextField) arg0.getSource()).getText();
					try
					{
						int newHeight = Integer.parseInt(txt);
						frame.mainPanel2.getSelectedObject().setHeight(newHeight);
					}
					catch (NumberFormatException e)
					{
						((JTextField) arg0.getSource()).setText("" + (int) frame.mainPanel2.getSelectedObject().getHeight());
					}
				}