I really love MSDN's navigation menu, the way you can expand/collapse contents and they load dynamically. How would they have been done? Is it an IFrame that just reloads each time something's clicked? Are they all just a bunch of hidden divs?
Is there an ASP.NET control that can produce something as pretty as that?
Thanks for any information. I'm not looking to rip off their design, just interested in the way it would work.