Showing Hyperlink Cues with CSS

ever notice those little icons next to text hyperlinks that indicate weather a link will take you off site (external link), or if it will open in a new window and what not? well below is a link to an article that describes how to use CSS to add the icons to your links:

http://www.askthecssguy.com/2006/12/showing_hyperlink_cues_with_cs_1.html