JAST (Javascript Toolkit) is an Open Source cross-platform javascript framework that aid users to perform the most hard operations with few simple lines of code.
It's modularity allow the download only for the code required to the page.
A javascript templating toolkit that allows on-demand asynchronous dependencies loading (= html/css/js/other files ) for a given screen element, and automates template processing and display. It acts like a multitasking browser environment.