Javascript/jQuery Event Handler Scope inside object using keyword this

I've been trying for days to figure this out. I have read many questions on SO as well as googled it many different ways and read/attempted everything I found. Nothing I have found so far has worked for me and I have rewritten my code a million times it seems trying out different methods for doing this.

I feel like there is some super obvious thing I am missing here, and maybe just need a push in the right direction. If I'm going about this completely wrong and need to restructure everything, I can do that too.

Any help is appreciated.

Basically what I am working with is a front end "controller" for lack of a better word, that initializes some variables, sets up some event listeners and responds to user actions.

I don't care if I use jQuery or pure Javascript, I just want it to work, even if I have to re-write the whole thing. My goal is speed and performance under heavy load. Another option I was considering was node.js but I have limited experience with that, so was hoping to figure it out with jQuery.

When the page loads, I do not get an error, but when I click one of the items that I have set an event listener on, I get the error... TypeError: Cannot Read Property 'apply' of undefined. And it refers to the corresponding line that starts with var scope = this ? function(e)...

The purpose of that line is to have the this keyword refer to the controller object so I can call object methods from within the event handler method. Though it seems it might not be working as I intended.

I tried to just use .on to set up the click and change handlers, but I was having problems with scope there as well. Any help, again, is much appreciated.

I will award a bounty to anyone who can help with this, even if you help before it is eligible I will send you a bounty once it becomes eligible so please don't hesitate to answer right away. I will pay the bounty as promised either way.

(function ($) {
    $(function () {  //document ready

        function Controller(authId, authKey) {

            this.user.id = authId;
            this.user.key = authKey;

            this.init();
        };


        Controller.prototype = {

            eventChange: [ "amt", "multi" ],
            eventClick: [ "double", "half", "high", "low" ],

            event: { refresh: ['amt', 'multi'], update: ['double', 'half'], process: ['high', 'low'] },

            user: { id: '', key: '', name: '', balance: '' },

            init: function () {

                this.initEvents();
           },
            initEventz: function() {

                for (var i = 0; i < this.eventChange.length; i += 1) {

                    var ele = document.getElementById(this.eventChange[i]);

                    var scope = this ? function(e) { this.handleEvent.apply(this, ["change"]); } : this.handleEvent;

                    if(document.addEventListener) {
                        ele.addEventListener("change", scope, false);
                    } else if(document.attachEvent) {
                        ele.attachEvent("onchange",  scope);
                    }
                }

                for (var i = 0; i < this.eventClick.length; i += 1) {

                    var ele = document.getElementById(this.eventClick[i]);

                    var scope = this ? function(e) { this.handleEvent.apply(this, ["click"]); } : this.handleEvent;

                    if(document.addEventListener) {
                        ele.addEventListener("click", scope, false);
                    } else if(document.attachEvent) {
                        ele.attachEvent("onclick",  scope);
                    }  
                }
           },
           handleEvent: function (e) {

              var eventId = e.target.id;

              for (var event in this) {
                    if (this.hasOwnProperty(event)) {

                           console.log(event);
                    }
              }
          }
        };
       var Controller = new Controller($("#auth").val(), $("#key").val());


    }); //end document ready

})(jQuery);