I\'m using Splitter.js in a project.
The code is from http://methvin.com/splitter/ The specific JS is at http://methvin.com/splitter/splitter.js
There's an updated fork of jQuery.splitter that works with jQuery 1.8 (also 1.9 if you restore jQuery.browser) at https://github.com/e1ven/jQuery-Splitter.
jQuery.browser