Re: How to duplicate FlatironJS effect?

[Kenneth]

If you're following the Bootstrap 2.1 release, the affix JS plugin should 
do the job of pinning the object to the top of the page pretty nicely. In 
the current live release it's also already used somewhat to make the sub 
navigation bar persistent. As for the actual folding effects, theirs looks 
like it has easing on it, so you'd necessarily have to look in the 
direction of jQuery. If you're ok with something simpler like a fade or 
whatnot, CSS could work I think...