dropzone.js is an open source library that provides drag’n’drop file uploads with image previews
Lightweight jQuery plugin to drag'n'drop <table> columns
This script doesn’t assume that it is smarter than you are. All it does is enabling clean column drag’n’drop, and triggers an event on drop. You should implement the persistence you want by binding that event to your own function.
Nuff said, here it is.
Alertify.js: better js prompt(), alert() and confirm()
It’s time to replace calls to