Creating two separate Windows ....

[cancerinform]

Here I made an example:

<fx:Script>
    <![CDATA[
        import mx.events.FlexEvent;
        import mx.managers.PopUpManager;
        
        import spark.components.TitleWindow;
        private var tw1:TitleWindow;
        private var tw2:TitleWindow;
        private var count:int=0;
        
        
        protected function application1_creationCompleteHandler(event:FlexEvent):void
        {
            tw1 = new TitleWindow();
            tw1.width = 200;
            tw1.height = 200;
            tw1.title = "Popup One";
            tw2 = new TitleWindow();
            tw2.width = 200;
            tw2.height = 200;
            tw2.title = "Popup Two";
            PopUpManager.addPopUp(tw1, this, true);
            PopUpManager.centerPopUp(tw1);
            
            PopUpManager.addPopUp(tw2, this, true);
            PopUpManager.centerPopUp(tw2);
            
            
            var myTimer:Timer = new Timer(1000,10);
            myTimer.start();
            myTimer.addEventListener(TimerEvent.TIMER,popupHandler);
        }
        private function popupHandler(event:TimerEvent):void
        {
            if(count==3)
            {
                PopUpManager.removePopUp(tw2);
            }
            if(count==6)
            {
                PopUpManager.removePopUp(tw1);
            }
            count++;
        }
        
    ]]>
  </fx:Script>