Your site

Hello,
I've been looking voor a good jquery plugin that on a link click loads
content in a div dynamically.
I've seen a few, but most of them don't work for me.
Now I've seen your site and the section demo's does exact what I need.
What plugin do you use?
http://ui.jquery.com/functional_demos/
When I click on "Easing" I see a loading icon. and then the content
without refreshing the whole page...