Tutorial: Introduction to JavaScript
http://www.intranetjournal.com/articles/200002/javatut_index.html

Weiss, Aaron
Intranet Journal

Abstract:

JavaScript is an easy-to-learn programming language which can be built into Web pages, so that it executes from within the browser rather than on the web server. Intranets especially can leverage the power of JavaScript to create 'smart' Web pages which can process data and interact with the user. In this introduction we concisely look at the main programming points of the JavaScript language.