code: function () {
  
              var isGeckoWin = (UA.gecko && this.platform == "windows");
              if (isGeckoWin) {
                  // Help prevent spinning loading icon which 
                  // started with FireFox 2.0.0.8/Win
                  var self = this;
                  setTimeout(function(){self._initResizeMonitor();}, 0);
              } else {
                  this._initResizeMonitor();
              }
          }
docs: Initialize an empty IFRAME that is placed out of the visible area
  that can be used to detect text resize.
  @method initResizeMonitor