format external text field help

[Susanadrt]

I have a external text field that scrolls and I want to format it... but this doesn´t work, please help, thanks.


var external_txt:TextField = new TextField();
var newFormat:TextFormat = new TextFormat();
var externalReq:URLRequest = new URLRequest("locais.txt");
var externalLoad:URLLoader = new URLLoader();
externalLoad.load(externalReq);
externalLoad.addEventListener(Event.COMPLETE, textReady);
up_btn.addEventListener(MouseEvent.CLICK, scrollUp);
down_btn.addEventListener(MouseEvent.CLICK, scrollDown);
external_txt.setTextFormat(newFormat);
external_txt.x = 175;
external_txt.y = 100;
external_txt.border = true;
external_txt.width = 200;
external_txt.height = 200;
external_txt.wordWrap = true;
newFormat.color = 0xFFDD00;
newFormat.size = 18;
newFormat.underline = true;
newFormat.italic = true;
addChild(external_txt);
function textReady(event:Event):void
{
external_txt.text = event.target.data;
}
function scrollUp(event:MouseEvent):void
{
external_txt.scrollV --;
}
function scrollDown(event:MouseEvent):void
{
external_txt.scrollV ++;
}