Load External Text on Click

Alright, so may be I’m an idiot but after playing with this code for hours I’m unsuccessful in getting this to work.

All I want to do is load external text into a text box when I click on a button. I’m trying to execute this in AS3. I know how to do this in AS2 but I need to start working in AS3. Here is the code I’ve been using and keep getting errors. Does anyone see something I don’t?

var loader:URLLoader = new URLLoader();
loader.load(new URLRequest(“testText.txt”));
loader.addEventListener(Event.COMPLETE, loadIt);

ohio_btn.addEventListener(MouseEvent.CLICK, loadIt);

function loadIt(event:MouseEvent):void {
ohio_txt.text = event.target.data;
}

The error I get is “Access of undefined property event.”

Thanks for your help.

Chris