1. -Uday Dhokale

2.  What is it ??? Prototype is a JavaScript Framework that aims to ease development of dynamic web applications.  Features a unique, easy-to-use toolkit for class-driven development and the nicest Ajax library around.

3. The biggest part of the Prototype framework are its DOM extensions. Prototype adds many convenience methods to elements returned by the $() function: for instance, you can write $('comments').addClassName('active').show() to get the element with the ID 'comments', add a class name to it and show it (if it was previously hidden). The 'comments' element didn't have those methods in native JavaScript; how is this possible? JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is notably used by APIs all over the web and is a fast alternative to XML in Ajax requests. Prototype 1.5.1 finally features JSON encoding and parsing support.

5.  A collection of Web 2.0 style JavaScript libraries that help web developers to easily add visual and Ajax effects to projects.  Script.aculo.us is a JavaScript library built on the Prototype JavaScript Framework, providing dynamic visual effects and user interface elements via the Document Object Model.

6. Prototype Framework Demo. A Demo showing a simple mouse event. Script.aculo.us Demo Some Effects I Have cooked up so simply with Script.aculo.us.