Two different doubts that are one, perhaps - setting buttonMode? Getting loaded image width?

Question

Hi everybody,
I'm quite a newbie using AS3 and as first pretentious learning project I'm creating a image multigallery.
At this moment I have two questions (between several future others) relative to the code I'm writing (and suffering):
How to correctly set the buttonMode in a dinamically created buttons?
and
How to get the width of the images that I'm dinamically loading? I'm planning to put them side by side, for this I need to know the width of each one.
In the thread title I wrote that it can be just one doubt despite the totally different purposes of the codes. Maybe.
Let me explain why: until now I could not understand completely the right way to direct the events inside dinamic functions.
Here's my code until now:
//// CREATE CONTAINERS ////
// CREATE MENU CONTAINER //
var menuContainer:MovieClip = new MovieClip();
menuContainer.x=10;
menuContainer.y=300;
addChild(menuContainer);
// CREATE IMAGES CONTAINER //
var imagesContainer:MovieClip = new MovieClip();
imagesContainer.x=100;
imagesContainer.y=10;
addChild(imagesContainer);
// IMAGE LOADERS //
var imagesLoader:Loader;
var bigImagesLoader:Loader;
//// LOAD XML ////
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, whenLoaded);
xmlLoader.load(new URLRequest("XML/roiaXML.xml"));
var xml:XML;
function whenLoaded(evt:Event):void {
     xml=new XML(evt.target.data);
     var mySetsList:XMLList=xml.children();
     //// MENU BUTTONS ////
     // POSITIONING BUTTONS INSIDE MENU CONTAINER//
     var rowsQuantity:Number=3;
     var columnsQuantity:Number=Math.ceil(mySetsList.length()/rowsQuantity);
     var cellWidth:Number=160;
     // CREATE BUTTONS //
     for (var i:int=0; i< mySetsList.length(); i++) {
          var newSetButtonMC:setButtonMC=new setButtonMC();
          var imageNodesArray:Array = new Array();
          for (var j:int=0; j<mySetsList[i].IMAGE.length(); j++) {
               imageNodesArray.push(mySetsList[i].IMAGE[j].attribute("smallURL"));
          newSetButtonMC.imageArray=imageNodesArray;
          newSetButtonMC.setButtonText.text=mySetsList.attribute("setTitle")[i];
          newSetButtonMC.setButtonText.autoSize=TextFieldAutoSize.LEFT;
          var cellX:Number=Math.floor(i/rowsQuantity);
          var cellY:Number=i%rowsQuantity;
          newSetButtonMC.x=cellX*cellWidth;
          newSetButtonMC.y=cellY*(newSetButtonMC.height+10);
          // I really don't know how to set the newSetButtonMC.buttonMode = true, nothing worked until now
          newSetButtonMC.addEventListener(MouseEvent.CLICK, onClickButton);
          menuContainer.addChild(newSetButtonMC);
     //// MENU BUTTONS ACTIONS ////
     function onClickButton(mevt:MouseEvent):void {
          // LOAD GALLERY IMAGES //
          var targetButton:setButtonMC=setButtonMC(mevt.currentTarget);
          for (i=0; i<targetButton.imageArray.length; i++) {
               imagesLoader = new Loader();
               imagesLoader.load(new URLRequest (targetButton.imageArray[i]));
               imagesLoader.addEventListener(Event.INIT, getImageWidth);
               imagesLoader.x=i*200;
               imagesContainer.addChild(imagesLoader);
               // LOAD BIG IMAGE WHEN CLICK IMAGE FROM GALERRY //
               imagesLoader.addEventListener(MouseEvent.CLICK, loadBigImage);
          function getImageWidth(evtImageWidth:Event):void {// FUNCTION TO GET IMAGE WIDTH //
               // I really don't know what to do here, i've tryed a lot
               trace(evtImageWidth.target.width);
               trace("ok");
     function loadBigImage(event:MouseEvent):void {
          trace("ok");
I've tryed (and searched for solutions) a lot, maybe someone can help me.
Thanks everybody . Abstrato

Answer 1

Something new happened in my life, and it's called "contentLoaderInfo".
<--- real happiness
With this:
imagesLoader.contentLoaderInfo.addEventListener(Event.INIT, getImageWidth);
plus this:
function getImageWidth(evt:Event):void {
trace(evt.target.width);
I was close to reach the supreme nirvana and I could trace the images widths.
But there is a problem: i don't know what to do with the values to load each image side by side.
Does someone know?
Thanks . Abstrato