The Basics of Object-Oriented JavaScript - Nettuts+
http://net.tutsplus.com/tutorials/javascript-ajax/the-basics-of-object-oriented-javascript/

Over recent years, JavaScript has increasingly gained popularity, partly due to libraries that are developed to make JavaScript apps/effects easier to create for those who may not have fully grasped the core language yet. While in the past it was a common argument that JavaScript was a basic language and was very 'slap dash' with no real foundation; this is no longer the case, especially with the introduction of high scale web applications and 'adaptations' such as JSON (JavaScript Object Notation).