[flexcoders] what flex can not catch event from Flash

[markflex2007]

Hi,

My flex app load a flash swf like following

<mx:SWFLoader   id="mySwf" source="assets/question.swf"/>

I catch event like this in flex

mySwf.addEventListener("test1",doStep1);

 private function doStep1():void{
    trace("step1");
 }



In the question.fla ,I use a bttoun to dispathch a event like

dispatchEvent(new Event("test1"));


My question is why I can not catch the event in flex after flash send the event 
out.

any suggestion?

Thanks for help


Marks