IanLunn/jQuery-Parallax — pull request #12 by Kynareth62 (2014-10-19 17:12:06+00:00)
Title: Update jquery.parallax-1.1.3.js

Rename parameter and change position.

New JS (load before body element) for auto-load all parallax elements:

$(document).ready(function(){
$('.ab-parallax').each(function() {
xpos = $(this).attr('parallax-xpos');
ypos = $(this).attr('parallax-ypos');
speed = $(this).attr('parallax-speed');
$(this).parallax(xpos, ypos, speed);
});
})

And new usage in html :

Please update documentation if you approve my work :)