blah.js

var BugTracker = BugTracker || {};
BugTracker.Controls = BugTracker.Controls || {};

BugTracker.Controls.Table = {};
BugTracker.Controls.Table.prototype.Init = funciton(container){
  //do stuff
}

SomePage.js

var BugTracker = BugTracker || {};
BugTracker.SomePage = BugTracker.SomePage || {};

BugTracker.SomePage = function(){
  //constructor
  var table = new BugTracker.Controls.Table(document.querySelector("#container"));
}

var page = new BugTracker.SomePage();