sidebar.js

PlatosForms.SideBar = function (tab) {
  var that = this;

  // definied in the overlay
  this.deck = document.getElementById("platos-forms-deck");
  
  // create the browser for this tab
  this.browser = document.createElementNS("http://www.w3.org/1999/xhtml","html:iframe");
  this.browser.type = "content";
  this.browser.orient = "vertical";
  this.browser.flex = "1";
  this.browser.height = "100%";

  this.deck.appendChild(this.browser);

  this.dom_content_loaded = function() {
    notes = that.browser.getElementsByClass("note"); // Error: that.browser.getElementsByClass is not a function