Index xml and double-digits issue

I have an issue, I have about 25 mc’s that are named carBtn1 through carBtn25 - the problem is when I index my array - its only taking the first number from the end of the carBtn, so carBtn1 is seen as the same as carBtn10. I tried taking the last 2 digits off which works for 2 digit numbers - but everything below 10 isnt working anymore. Im not sure what to do to get it working…

Here is my code:

// variables
var popInfo:popMc;

// load xml
var xml:XML = new XML();
var loader:URLLoader = new URLLoader();
loader.load(new URLRequest("data/cities.xml"));
    function(evt:Event):void {
        xml = XML(;
        //trace([0][email protected]());
        var url:URLRequest = new URLRequest([0][email protected]()); 


// event listeners
stage.addEventListener(MouseEvent.CLICK, onClickStageRemove);

for (var j:int = 0; j < 11; j++)
getChildByName("carBtn" + j).addEventListener(MouseEvent.CLICK, onClickLoadData);
getChildByName("carBtn" + j).addEventListener(MouseEvent.MOUSE_OVER, onCarHover);
getChildByName("carBtn" + j).addEventListener(MouseEvent.MOUSE_OUT, onCarOut);

// button mode
buttonMode = true;

// functions
function onCarHover(event:MouseEvent):void

function onCarOut(event:MouseEvent):void

function onClickLoadData(event:MouseEvent):void
    popInfo = new popMc();
    popInfo.x = 100;
    popInfo.y = 50;
    popInfo.closeBtn.addEventListener(MouseEvent.CLICK , onClickRemove);
    popInfo.nyopBtn.addEventListener(MouseEvent.CLICK, onClickNYOP);
    //better approach would be add separate classFile to haldle some popInfo's events
    //such removing on stageClick in that file u could add those functions:
    popInfo.carsizeText.text =[index].bidlist.carsize.descendants().toXMLString();
    popInfo.priceText.text =[index].bidlist.price.descendants().toXMLString();
    popInfo.savingsText.text =[index].bidlist.savings.descendants().toXMLString();
    popInfo.stateText.text =[index][email protected]();   

function onClickRemove(event:MouseEvent):void
    popInfo.closeBtn.removeEventListener(MouseEvent.CLICK, onClickRemove);
    popInfo.nyopBtn.removeEventListener(MouseEvent.CLICK, onClickNYOP);

function onClickStageRemove(event:MouseEvent):void
    if(event.eventPhase == EventPhase.AT_TARGET) {

function onClickNYOP(event:MouseEvent):void 
    //navigateToURL(url, "_blank");
    // navigateToURL(urlNY, "_blank"); //trying to get this variable to work"selectNY");


// set button mode here