Gears sample (uses javascript from jParallax demos).
I created this sample to demonstrate how easy it is to take an existing demo and alter it to your own purposes. Just view the source for this or the other jParallax demos, use the existing format and javascript, substitute your own images, and you're done! Note this version uses jQuery-1.2.6.min which has some differences with jQuery-1.4.2 etc, so be sure to use correct javascript at least the first time you try to get this to work. Other things that may not be obvious to you depending on your level of experience; each image should be partially transparent, that's why it uses PNG images; and, each of the six images, starting with 1200x400, are progressively smaller overall.