X3DOM is a framework for integrating and manipulating (X)3D scenes as HTML5 DOM elements that are rendered via WebGL. The system allows defining 3D scene description and runtime behavior declaratively, without any low-level JavaScript or GLSL coding.
Selectables.js is based on Prototype JavaScript Framework. It allows you to select items in a different manner: either with the help of the rubberband tool or in one mouse click on the handle.
Date plug in for prototype javascript library. This library extends javascript's date object and implements several methods. Date arithmetic, date utility methods, week days and weekend calculations implemented.
Using Prototype by prototypejs.org, inspirations from tinyMCE and code pieces from spiffyCal create a JavaScript control which used to be a calendar easy to use, free configurable and work in all browsers which support at least prototype 1.5.0.
PrototypePlus is an extension to Prototype Javascript library, which supports subscribe/publish and custom event, AOP, cool widgets and some utils. Visit our website (http://prototypeplus.sourceforge.net/) for the detail.