See Wiki:JavaScript
[ECMAScript Language Specification]
[Reference for JavaScript 1.5]
[Reference for JavaScript 1.4]
[Reference for JavaScript 1.3]
[Useful JavaScript Collection]
[Free JavaScript tutorials, reference, code, and help]
[Reference for JavaScript 1.3]
[Microsoft JScript resources in the MSDN Library]
[W3Schools.com JavaScript Tutorials]
[Crockford on Private Member Variables]
[Tips & Tricks] - "... studying and defeating browser incompatibilities. ..."