Painless JavaScript Using Prototype
http://www.sitepoint.com/article/painless-javascript-prototype

Webb, Dan
SitePoint
2006

Abstract:

Prototype is an object oriented JavaScript library (written by Sam Stephenson and friends) that makes JavaScript fun. So it says on the site, anyway. Those of you who are familiar with the open source community's latest and greatest application framework, Rails, may recognise Prototype as it actually forms the backbone of Rails' JavaScript helper. However, Prototype can be used independently of Rails to aid the coding of many JavaScript doodads and Web 2.0 thingy wangles.