Castwide Developer's Resource

CFX: A visual effects library for creating animations, fades, and other visual transitions.

DND: Drag-and-drop capabilities for elements on web pages. This script includes the Sortable object, which makes it easy to create tables and lists that can be rearranged dynamically.

Prototype: A JavaScript framework that eases the development of rich Web applications.  Many of the applications and libraries on this site, including the Phrameworks CMS that powers it, use Prototype.

CSSTitle: This library makes it easy to add styled popups that replace the default tooltips that browsers typically use to display titles for elements.