fixed to top page when scroll at that point?

[ACTIONpack]

http://www.romabio.com/products/

I'm trying to get the "Filter To" section of the page to stay on top when someone scroll down the page. I know position: fixed; will do that but it will only stay at one point of the page. Good example I would like it to do is like www.redbox with the menu.

http://www.redbox.com

[ashpowell]

JS is required for that one, this is a great jquery script we use - http://imakewebthings.com/jquery-waypoints/shortcuts/sticky-elements/

[jordan.]

Also check out jQuery.Pin