Code NEARLY working, but not quite

"use strict"

// register the application module
b4w.register("my_CUBE_main", function(exports, require) {

// import modules used by the app
var m_app       = require("app");
var m_cfg       = require("config");
var m_data      = require("data");
var m_preloader = require("preloader");
var m_ver       = require("version");
var m_logn      = require("logic_nodes");
var m_obj       = require("objects");
var m_mat       = require("material");
var m_scenes    = require("scenes");
var m_trans     = require("transform");
var m_mouse     = require("mouse");    
var m_anim      = require("animation");
var m_cam       = require("camera");
var m_cont      = require("container");
var m_cons      = require("constraints");
var m_ctl       = require("controls");
var m_main      = require("main");
    
    

var _disable_interaction = false;
var _selected_obj = null;
    
    
    
    
// detect application mode
var DEBUG = (m_ver.type() == "DEBUG");

// automatically detect assets path
var APP_ASSETS_PATH = m_cfg.get_assets_path("my_CUBE");

/**
 * export the method to initialize the app (called at the bottom of this file)
 */
exports.init = function() {
    m_app.init({
        canvas_container_id: "main_canvas_container",
        callback: init_cb,
        show_fps: DEBUG,
        console_verbose: DEBUG,
        autoresize: true
    });
}

/**
 * callback executed when the app is initialized 
 */
function init_cb(canvas_elem, success) {

    if (!success) {
        console.log("b4w init failure");
        return;
    }

    
    
    
    
    m_preloader.create_preloader();
    
canvas_elem.addEventListener("mousedown", main_canvas_down);
    
    ////////
//canvas_elem.addEventListener("mouseup", main_canvas_up);
    ///////
    

    // ignore right-click on the canvas element
    canvas_elem.oncontextmenu = function(e) {
        e.preventDefault();
        e.stopPropagation();
        return false;
    };

    
    m_logn.append_custom_callback("action", action_cb);
    
    
    load();
}

/**
 * load the scene data
 */
function load() {
    m_data.load(APP_ASSETS_PATH + "my_CUBE.json", load_cb, preloader_cb);
}

/**
 * update the app's preloader
 */
function preloader_cb(percentage) {
    m_preloader.update_preloader(percentage);
}

/**
 * callback executed when the scene data is loaded
 */
function load_cb(data_id, success) {

    if (!success) {
        console.log("b4w load failure");
        return;
    }

m_app.enable_camera_controls();

///code goes here too///

    
 init_controls();
 
    
    
  }  

    


    
    
    
    
    
    
    
    
    
    

    function action_cb(in_params, out_params) {

console.log("The menu was swapped"); 

       document.getElementById("cssmenu").style.display='none';
       document.getElementById("cssmenu2").style.display='block';
  
    }
    
    
    

      
    
    
    
    
  function main_canvas_down(e) {
   

      
      if (e.preventDefault)
        e.preventDefault();

    var x = m_mouse.get_coords_x(e);
    var y = m_mouse.get_coords_y(e);

    var obj = m_scenes.pick_object(x, y);

    // handling outline effect
    if (_selected_obj != obj) {
        if (_selected_obj)
            m_scenes.clear_outline_anim(_selected_obj);
        if (obj)
            console.log(m_scenes.get_object_name(obj));
	console.log(m_mat.get_materials_names(obj));
            m_scenes.apply_outline_anim(obj, 1, 1, 0);

        _selected_obj = obj;
 
   }    
      
  } 
    
    
 
//function main_canvas_up(e) {
//    _drag_mode = false;
    // enable camera controls after releasing the object
 //   if (!_enable_camera_controls) {
 //       m_app.enable_camera_controls();
//        _enable_camera_controls = true;
 //   }
//}
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
function init_controls() {

    //init_buttons();
      
   document.getElementById("action1").addEventListener("click", function(e) {
       console.log("The menu is working");
        if (_selected_obj) {
            var id = m_scenes.get_object_data_id(_selected_obj);
            m_data.unload(id);
            _selected_obj = null;
        }
    });           
              
   
    
    
    
    
    
    
    
    
    
    
              
              
}  
 
    

});

// import the app module and start the app by calling the init method
b4w.require("my_CUBE_main").init();