code: function Flyout_hideAllOtherFlyouts(thisFlyout) {
                      var flyouts = _Global.document.querySelectorAll("." + _Constants.flyoutClass);
                      for (var i = 0; i < flyouts.length; i++) {
                          var flyoutControl = flyouts[i].winControl;
                          if (flyoutControl && !flyoutControl.hidden && (flyoutControl !== thisFlyout)) {
                              flyoutControl.hide();
                          }
                      }
                  }
docs: Hide all other flyouts besides this one