External text file problems

programming flash
1

I’m trying to make a simple link to an external text file for practice purposes. The “external.txt” file is saved in the same folder as my fla file. Here’s my code:


var external_txt:TextField = new TextField();
var externalReq:URLRequest = new URLRequest("external.txt");
var externalLoad:URLLoader = new URLLoader();
 
externalLoad.Load(externalReq);
externalLoad.addEventListener(Event.COMPLETE, textReady);
 
external_txt.x = 100;
external_txt.y = 100;
external_txt.border = true;
external_txt.width = 150;
external_txt.height = 250;
external_txt.wordWrap = true;
 
addChild(external_txt);
 
function textReady(event:Event):void
{
 external_txt.text = event.target.data;
}

Looks fine to me, but I keep getting the following error:
1061: Call to a possibly undefined method Load through a reference with static type flash net

It points me towards the externalLoad.Load(externalReq); line, but I can’t see where I’ve gone wrong…can anybody help?