private JButton createToolBarButton(String text, String fileName) {
		Image image = PLV.createImageIcon(fileName).getImage().getScaledInstance(TOOL_BAR_ICON_SIZE, TOOL_BAR_ICON_SIZE, java.awt.Image.SCALE_SMOOTH);
				
		JButton toolbarButton = new JButton(new ImageIcon(image));
		
		if(text != null) {
			toolbarButton.setToolTipText(text);
		}

		toolbarButton.addActionListener(listener);
		toolbarButton.setFocusable(false);
		return(toolbarButton);
	}