Path = Home : Webmaster Resources : HTML Design Tips : Creating A Status Bar Link Description
You can display a description in the status bar for all of your links. When the mouse is placed over a link, the link description will be viewed in the status bar.
<A HREF="http://www.yourdomain.com" onmouseover="window. status='Your text description'; return true" onmouseout= "window.status='';return true">Your linked text</a>