traceBitmap requires selection error...

[AnimatorX]

I need to write a jsfl script that will allow me to loop through all the frames in a scene and convert the bitmap files that are in them to vector graphics. This is the script I'm using, but I get an error telling me that traceBitmap() requires a selection.

var timeln = flash.documents[0].getTimeline();
var i;
for(i = 0 ;i < timeln.frameCount; i++){
var x;
var elems = timeln.layers[timeln.currentLayer].frames[i].elements;
for (x = 0; x < elems.length; x++) {
var elementType = elems[x];
var etype = elementType.instanceType;
if(etype=="bitmap"){
flash.documents[0].selection = [flash.documents[0].timelines[0].layers[tl.currentLayer].frames[i].elements[x]];
flash.documents[0].traceBitmap(32, 8, 'normal', 'normal');
}
}
}

The only element in each frame is a bitmap. If anyone can help me out here and point out what I'm doing wrong, i'd really appreciate it.

Thanks in advance,
Tim

[AnimatorX]

I found the solution. In case anyone needs it, it's here:

fl.outputPanel.clear();
var frameCount = fl.getDocumentDOM().getTimeline().layers[0].frames.length;
fl.trace("Total Frames=" + frameCount);
for (var i = 0; i < frameCount; i++) {
fl.trace("Converting Frame " + i);
if(fl.getDocumentDOM().getTimeline().layers[0].frames[i].elements[0].instanceType=="bitmap"){
try {
fl.getDocumentDOM().getTimeline().setSelectedFrame s(i, i);
fl.getDocumentDOM().selection = [fl.getDocumentDOM().getTimeline().layers[0].frames[i].elements[0]];
fl.trace("Frame " + i + " selected.");
fl.getDocumentDOM().traceBitmap(32, 8, 'normal', 'normal');
fl.trace("Frame " + i + " traced.");
}
catch (myError) {
fl.trace("Error Frame " + i + ": " + myError);
}
}
}

Enjoy!