ActionScript 3.0 :: Slideshow Variable Time For Each Picture?

I've migrated from AS1 to AS3, and boy, a lot has changed... Anyhow, to learn and understand AS3, I'm modifying a slideshow I found through thetechlabs. I want it to play SWF as well as JPG. These files are passed through an XML file. I added an element called <delaytime> to the XML file that replaces the standard time a photo is shown in the slideshow.
 
I modified the onSlideFadeIn() function as follows:
 
function onSlideFadeIn():void {     slideTimer.removeEventListener(TimerEvent.TIMER, nextSlide);     slideTimer = new Timer(xmlSlideshow..file[intCurrentSlide].@time);     slideTimer.addEventListener(TimerEvent.TIMER, nextSlide);     if(bolPlaying && !slideTimer.running)     slideTimer.start();}
 
However, when I run it, I get this error message:
 
## [Tweener] Error: [object Sprite] raised an error while executing the 'onComplete'handler. TypeError: Error #1010: A term is undefined and has no properties.at slideshow_fla::MainTimeline/onSlideFadeIn()at Function/http://adobe.com/AS3/2006/builtin::apply()at caurina.transitions::Tweener$/::updateTweenByIndex()at caurina.transitions::Tweener$/::updateTweens()at caurina.transitions::Tweener$/onEnterFrame()
 
It stops at the first picture of my slideshow. When I push the 'next' button it displays the next pic, but I get the same error message again.When I comment out this line:

slideTimer = new Timer(xmlSlideshow..file[intCurrentSlide].@time);
 
the slideshow runs OK, but without the delaytime specified in the XML file.

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