JQuery equivalent for HTML fixed position but with additional delay.

JQuery equivalent for HTML fixed position but with additional delay.

Sorry to ask this if this topic is already existed.
I don't know the right term for what I am looking for.

This it the sample I am referring to http://www.jtricks.com/javascript/navigation/floating.html

The element is fixed at an specified position, if the user scrolled the window,
the div remains on its position like what the CSS do {position:fixed;}
but this sample have properties that looks like it is gliding toward it's original position.

How to do this guys?

Thanks!