js oop

gistfile1.txt

//oop
Function.prototype.extends = function(parentClassOrObject){ 
	if(parentClassOrObject.constructor == Function) 
	{ 
		//normal inheritance 
		this.prototype = new parentClassOrObject;
		this.prototype.constructor = this;
		this.prototype.super = parentClassOrObject.prototype;
	} 
	else 
	{ 
		//pure virtual inheritance 
		this.prototype = parentClassOrObject;
		this.prototype.constructor = this;
		this.prototype.super = parentClassOrObject;
	} 
	return this;
}