Cant Pass var url to navigateToURL

programming flash
1

So Im stumped, Im trying to pass a var url - which grabs the URL out of the xml file. I have the code setup correctly and I can see the URL being pulled out of the XML - but I cant seem to get it into the onClickNYOP function. I get all sorts of errors, can someone please tell what Im doing wrong?

Here is my code:

stop();
// variables
var popInfo:popMc;
var star1sp:Sprite = new Sprite();
var star2sp:Sprite = new Sprite();
var star3sp:Sprite = new Sprite();
var star4sp:Sprite = new Sprite();
var star5sp:Sprite = new Sprite();

//star1Num
var star11:MovieClip = new Star1();
var star12:MovieClip = new Star2();
var star13:MovieClip = new Star3();
var star14:MovieClip = new Star4();
var star15:MovieClip = new Star5();

//star2Num
var star21:MovieClip = new Star1();
var star22:MovieClip = new Star2();
var star23:MovieClip = new Star3();
var star24:MovieClip = new Star4();
var star25:MovieClip = new Star5();

//star3Num
var star31:MovieClip = new Star1();
var star32:MovieClip = new Star2();
var star33:MovieClip = new Star3();
var star34:MovieClip = new Star4();
var star35:MovieClip = new Star5();

//star4Num
var star41:MovieClip = new Star1();
var star42:MovieClip = new Star2();
var star43:MovieClip = new Star3();
var star44:MovieClip = new Star4();
var star45:MovieClip = new Star5();


// load xml
var xml:XML = new XML();
var loader:URLLoader = new URLLoader();
loader.load(new URLRequest("data/ht_vday08.xml"));
loader.addEventListener(Event.COMPLETE,
    function(evt:Event):void {
        xml = XML(evt.target.data);
            
            

    }
);

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

for (var j:int = 0; j < 22; 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
{
    event.target.gotoAndPlay(11);
}

function onCarOut(event:MouseEvent):void
{
    event.target.gotoAndPlay(10);
}

// loads data and populates popUp movieclips
function onClickLoadData(event:MouseEvent):void
{
    if (popInfo) removeChild(popInfo);
    popInfo = new popMc();
    popInfo.x = 130;
    popInfo.y = 50;
    addChild(popInfo);    
    popInfo.closeBtn.addEventListener(MouseEvent.CLICK , onClickRemove);
    popInfo.nyopBtn.removeEventListener(MouseEvent.CLICK, onClickNYOP);
    var index = String(event.target.name);
    while (index != String(uint(index))){
        index = index.substr(2);
    }
    popInfo.stateText.text = xml.city[index].@name.toString(); 
    var url:String = xml.city[index].@weburl.toString(); 
    trace(url);
    
    popInfo.cityPrice1.text = xml.city[index].cityprice.citypricename[0].toString();
    popInfo.cityPrice2.text = xml.city[index].cityprice.citypricename[1].toString();
    popInfo.cityPrice3.text = xml.city[index].cityprice.citypricename[2].toString();
    popInfo.cityPrice4.text = xml.city[index].cityprice.citypricename[3].toString();
   
    popInfo.fromPrice1.text = xml.city[index].cityprice.fromprice[0].toString();
    popInfo.fromPrice2.text = xml.city[index].cityprice.fromprice[1].toString();
    popInfo.fromPrice3.text = xml.city[index].cityprice.fromprice[2].toString();
    popInfo.fromPrice4.text = xml.city[index].cityprice.fromprice[3].toString();
    
    var star1Num:Number = xml.city[index].cityprice.starcount[0].toString();
    var star2Num:Number = xml.city[index].cityprice.starcount[1].toString();
    var star3Num:Number = xml.city[index].cityprice.starcount[2].toString();
    var star4Num:Number = xml.city[index].cityprice.starcount[3].toString();
    
    popInfo.addChild(star1sp);
    star1sp.y = 70;
    star1sp.x = -10;
    if (star1Num == 1) {
    star1sp.addChild(star11);
    }
    else if (star1Num == 2) {
    star1sp.addChild(star12);
    }
    else if (star1Num == 3) {
    star1sp.addChild(star13);
    }
    else if (star1Num == 4) {
    star1sp.addChild(star14);
    }
    else if (star1Num == 5) {
    star1sp.addChild(star15);
    }

    popInfo.addChild(star2sp);
    star2sp.y = 105;
    star2sp.x = -10;
    if (star2Num == 1) {
    star2sp.addChild(star21);
    }
    else if (star2Num == 2) {
    star2sp.addChild(star22);
    }
    else if (star2Num == 3) {
    star2sp.addChild(star23);
    }
    else if (star2Num == 4) {
    star2sp.addChild(star24);
    }
    else if (star2Num == 5) {
    star2sp.addChild(star25);
    }

    
    popInfo.addChild(star3sp);
    star3sp.y = 70;
    star3sp.x = 142;
    if (star3Num == 1) {
    star3sp.addChild(star31);
    }
    else if (star3Num == 2) {
    star3sp.addChild(star32);
    }
    else if (star3Num == 3) {
    star3sp.addChild(star33);
    }
    else if (star3Num == 4) {
    star3sp.addChild(star34);
    }
    else if (star3Num == 5) {
    star3sp.addChild(star35);
    }

    popInfo.addChild(star4sp);
    star4sp.y = 105;
    star4sp.x = 142;
    if (star4Num == 1) {
    star4sp.addChild(star41);
    }
    else if (star4Num == 2) {
    star4sp.addChild(star42);
    }
    else if (star4Num == 3) {
    star4sp.addChild(star43);
    }
    else if (star4Num == 4) {
    star4sp.addChild(star44);
    }
    else if (star4Num == 5) {
    star4sp.addChild(star45);
    }
    

}

function onClickNYOP(event:MouseEvent):void 
{

    navigateToURL(url, "_blank");
}    

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

}

function onClickStageRemove(event:MouseEvent):void
{
    if(event.eventPhase == EventPhase.AT_TARGET) {
        removeChild(popInfo);
        popInfo=null;

    }
}