OOP using JS

Object Oriented Programming using JavaScript

http://www.codeproject.com/Articles/5608/Writing-Object-Oriented-JavaScript-Part-1
http://www.codeproject.com/Articles/5610/Writing-Object-Oriented-JavaScript-Part-2
http://www.codeproject.com/Articles/5611/Writing-Object-Oriented-JavaScript-Part-3

These articles are describing all the related topics for OOP concepts using JS. 

Other articles are as following for OOP using JavaScript...

https://developer.mozilla.org/en-US/docs/JavaScript/Introduction_to_Object-Oriented_JavaScript
http://viralpatel.net/blogs/object-oriented-programming-with-javascript/