Enabling Parent button while external swf is loaded [AS3]

Question

Hello everyone,
I am very new to Flash and it takes me a while to understand what code is trying to tell me
The problem I am currently facing is as follows:
After searching the net for hours I finally figured out, how to load an external swf into my main timeline. As far as I understand this main timeline is the "parent". Hence the loaded, external swf should be the "child" (a quiz).
Now the child (a quiz) loads into the flash file and is played properly, but I cannot access the button on the parent anymore. Unfortunately, I really need the home button on the parent to exit the quiz and allow for new navigation within the flash document.
I would greatly appreciate any help.
Thank you all in advance.
Kliph
my AS3 Code:
import flash.events.MouseEvent;
function onClick611 (event:MouseEvent) :void
        gotoAndPlay("home_einf")
home_btn.addEventListener (MouseEvent.CLICK, onClick611);
import flash.net.URLRequest;
import flash.display.Loader;
import flash.events.Event;
import flash.events.ProgressEvent;
function startLoad()
    var mLoader:Loader = new Loader();
    var mRequest:URLRequest = new URLRequest("quiz.swf");
mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
mLoader.load(mRequest);
function onCompleteHandler(loadEvent:Event)
addChild(loadEvent.currentTarget.content);
    function onProgressHandler(mProgress:ProgressEvent)
    var percent:Number = mProgress.bytesLoaded/mProgress.bytesTotal;
trace(percent);
startLoad();
stop();

Answer 1

By simply using addChild like you have, you're placing the loaded content above everything on the display list - covering your button. There are a few ways to solve. The easiest, if it works for you, is to just make a new layer in your timeline - make it the top most layer, and place your home button in that layer.
Then change your addChild line from:
addChild(loadEvent.currentTarget.content);
to:
addChildAt(loadEvent.currentTarget.content, numChildren - 2);
This will place the loaded content behind the button.
Alternatively, you can set the button to export for AS and then add it after you add the loaded file. Or you can use content containers - empty sprites that you add first, and then fill with other objects, in order to control layering.