Parallax is a project mainly written in JavaScript, it's free.
A super simple parallax-like jquery plugin
Parallax by John Tajima, Copyright 2010
A super simple parallax-like jQuery plugin.
Define any HTML element you want to have move with the following data attributes: data-scrollFactor => +/- times the scroll amount (ie: 0.5 moves 1/2 the amount of scroll, -0.8 moves .8 times in the opposite direction) data-scrollStart => absolute px from top when you want to the scroll factor to take effect data-scrollEnd => absolute px from top when you wish to ignore scroll factor
Define in css the elements to be position:fixed and any other important values, such as z-index.
eg: