execute function in external loaded swf

[blaatorx]

Peepz,

I have a loader class which loads an external movieclip, in my complete handler i want to execute a function (functionname = loadLessons) on keyframe 1 in de external loaded swf:

//Loader Class
function loadPage(url, holder):void
{
 var assetsUrl:String = url
 var loader:Loader = new Loader();
 configureListeners(loader.contentLoaderInfo); 
  
 var assestsRequest:URLRequest = new URLRequest(assetsUrl);
 loader.load(assestsRequest); 
 loader.addEventListener(Event.COMPLETE, completeHandler);
 holder.addChild(loader); 
}

function completeHandler(event:Event):void 
{
 trace("completeHandler: " + event); 
 //event.target.loadLessons() 

 var init:Function = event.target.loader.parent.loadLessons
 init()
} 

But i get this error:

TypeError: Error #1006: value is not a function.
at index2_fla::MainTimeline/completeHandler()

Con somebody let me execute the function?

Thnx!