JavaScript: The Definitive Guide by David Flanagan [Repost]

This Fifth Edition is completely revised and expanded to cover JavaScript as it is used in today's Web 2.0 applications. This book is both an example-driven programmer's guide and a keep-on-your-desk reference, with new chapters that explain everything you need to know to get the most out of JavaScript, including:
Scripted HTTP and Ajax
XML processing
Client-side graphics using the canvas tag
Namespaces in JavaScript–essential when writing complex programs
Classes, closures, persistence, Flash, and JavaScript embedded in Java applications