var object1 = function () {
    return {
        z : function () { console.log('action1'); },
        a : function () { console.log('action2'); },
        m : function () { console.log('action3'); }
    };
};

var object2 = function () {
    var extend  = object1();
    extend.a = function () { console.log('actionNOTHING PLAYA!! Action2 got ownt!'); };

    extend.b = function() { console.log('action4'); };

    return extend;
};

var object3 = function () {
    var extend  = object2();

    extend.stuff = function() { console.log('action5'); };

    return extend;
};

//var display = object1();
//var display = object2();
var display = object3();

for (var method in display) {
    if (typeof display[method] === "function") {
        display[method]();
    };
};