import mx.controls.Alert;
private function createListener(e:Event):void {
b1.addEventListener(MouseEvent.MOUSE_OVER, myEventHandler);
b1.addEventListener(MouseEvent.CLICK, myClickHandler);
}
private function myEventHandler(e:Event):void {
var result:Boolean = b1.dispatchEvent(new
MouseEvent(MouseEvent.CLICK, true, false));
}
private function myClickHandler(e:Event):void {
Alert.show("Triggered by the " + e.type + " event");
}