Looking for AJAX reload of div

[eluser]spmckee[/eluser]
Greetings,

I have a subnav with four links in it and a main div that holds the main content. All I am looking to do is to refresh the div content with AJAX when a subnav link is hit. I have looked and looked and nearly all the tutorials use forms and the database as examples. Is there anywhere I can look or any tips on how to accomplish this?

-- Not sure if this helps but I am using Jquery as my JS library. --

Thanks for your time!
SP