private function scrollDown(event:Event):void{

scrollingDirection = “scrollDown”;

scrollingTimer();

}//scrollDown

private function scrollUp(event:Event):void{

scrollingDirection = “scrollUp”;

scrollingTimer();

//scrollUp

private function scrollingTimer():void{

myTimer = new Timer(50);

myTimer.addEventListener(“timer”, scrolling);

myTimer.start();

}//scrollingTimer

private function scrollStop(event:Event):void{

myTimer.stop();

}//scrollingTimer

private function scrolling(event:TimerEvent):void{

if(scrollingDirection == “scrollDown” && thumbnailsContainer.y < scrollbuttonheight){ //working

thumbnailsContainer.y +=10;

}else if(scrollingDirection == “scrollUp” && (thumbnailsContainer.y + thumbnailsContainer.height) > imageHeight){

thumbnailsContainer.y -=10;

}

}//scrolling

——

Scrolling masked content – version 2:

private function scrollMinus(event:MouseEvent):void{

directionScroll = “minus”;

doScrollTimer();

}//scrollMinus

private function scrollPlus(event:MouseEvent):void{

directionScroll = “plus”;

doScrollTimer();

}//scrollPlus

private function scrollCancel(event:MouseEvent):void{

scrollTimer.stop();

}//scrollCancel

private function doScrollTimer():void{

scrollTimer = new Timer(100, 0);

scrollTimer.addEventListener(TimerEvent.TIMER, doScrolling);

scrollTimer.start();

}

private function doScrolling(event:TimerEvent):void{

if(directionScroll == “minus”  && (thumbnailContainerSprite.x + widthAfterSpacing) > (maskShape.width – maskShape.x + minLeftScrollPos) ){ 

//the border on the left

thumbnailContainerSprite.x -= 10;

}else if(directionScroll == “plus” && thumbnailContainerSprite.x < minLeftScrollPos){ 

thumbnailContainerSprite.x += 10;

}

}//doScrolling

Then I found blogs that had gotoAndStops which just could not be right.

The trick – ensure the frame (or easier, the whole thing) has its mouseChildren set to false.

Added onto this – a way to use one function for all the events:

private var test_mc:linked_btn = new linked_btn();

addChild(test_mc);

test_mc.addEventListener(MouseEvent.MOUSE_DOWN, checking);//re-use function and check for event type

test_mc.addEventListener(MouseEvent.MOUSE_OVER, checking);

test_mc.addEventListener(MouseEvent.MOUSE_OUT, checking);

test_mc.addEventListener(MouseEvent.MOUSE_UP, checking);

test_mc.buttonMode = true;

test_mc.mouseChildren = false; 

//adobe documentation: If you include frames labeled _up, _over, and _down, Flash Player provides automatic state changes 

//must do else will not do state changes – else bubbling down to look for more event listeners probably

//solution: http://www.flashfocus.nl

private function checking(event:MouseEvent):void{

trace(event.type);

if(event.type==”mouseOver”){

trace(“over script”);

}else if(event.type==”mouseOut”){

trace(“out script”);

}else if(event.type==”mouseDown”){

trace(“down script”);

}else if(event.type==”mouseUp”){

trace(“up script”);

}

}

Thanks to: 

http://www.markledford.com/blog/2008/08/13/why-some-as3-swfs-work-stand-alone-but-fail-to-load-into-other-swfs/

who explains it well and is less ratty and petulently ‘clever’ as some people on forums.

(In Initialiser function)

public function ImpactVisualHome(){

trace(“main class started”);

if (stage){

onAddedToStage();

} else {

addEventListener(Event.ADDED_TO_STAGE, onAddedToStage);

}

}//init

private function initApp():void{

//do all things it needs to once it has registered the stage

}//initApp

private function onAddedToStage(event:Event=null):void {

removeEventListener(Event.ADDED_TO_STAGE, onAddedToStage);

initApp();

}