if (typeof Object.create !== 'function') {
    Object.create = function (o) {
        function F() {}
        F.prototype = o;
        return new F();
    };
}
newObject = Object.create(oldObject);

http://javascript.crockford.com/prototypal.html

an operator that implements true prototypal Object inheritance in JavaScript

JavaScript Object Prototypal inheritance

javascript, object

JavaScript