It’s easy to build facebook like photo order sort using mootools. Mootools already has a class (Sortables) to handle this. I’ve built a very simple example by which we can sort photo thumbs order through mouse drag and drop and we can save the orders on database to load the photos later with sorted order. Here are the details
https://kodegeek.wordpress.com/2009/07/22/facebook-like-photo-order-sorting-in-mootools/

Check it out here By Ryan Florence