Loading.js is a project mainly written in CoffeeScript, based on the MIT license.
Simple messages to your website
As I'm aiming to move Writeboard to use javascript micro-frameworks instead of a complete huge lib, I've extracted this small one from it. The objective is to have a set javascript functions that help creating 'loading', 'modal', 'prompt' dialogs.
Add 'loading.min.js' and a CSS to style your messages (loading.writeboard.css is the one I used on the Writeboard project)