Scroll Follow is a simple jQuery plugin that enables a DOM object to follow the page as user scrolls up or down. You can easily configure it to let DOM Object follow the page all the way or within the limits of a certain container.
Scroll Follow has been successfully tested on IE6, IE7, FF2, FF3, Safari 3, and Opera 9. Scroll Follow uses the “top” property of an object to slide it. Therefore, “position” of the object must be set to either “relative” or “absolute”. This is the only requirements you must follow in your CSS; there is no limitation on customizing the look and feel of your object through CSS.