Separate AS3

Hi ... i'm trying to move AS3 to separate file

but i always got error

Line 13 1120: Access of undefined property loader.

Line 13 1120: Access of undefined property handle_loadComplete.

Line 14 1120: Access of undefined property loader.

this is my code

package 
{
	import flash.events.Event;
	import flash.net.URLLoader;
	import flash.net.URLRequest;
	import flash.text.TextField;// ini untuk dynamic text
	import se.svt.caspar.template.CasparTemplate;

	public class ParsingXML extends CasparTemplate
	{
		private var loader:URLLoader = new URLLoader();

		loader.addEventListener(Event.COMPLETE, handle_loadComplete);
		loader.load(new URLRequest("pembuktian.txt"));

		private function handle_loadComplete(e:Event):void
		{

			myTextField.text = e.target.data;

		}
	}
}

before i move to separate file i had test it inside .fla file and it work

var loader:URLLoader = new URLLoader();

loader.addEventListener(Event.COMPLETE, handle_loadComplete);
loader.load(new URLRequest("pembuktian.txt"));

function handle_loadComplete(e:Event):void
{

	myTextField.text = e.target.data;

}

is there anyone can point me into right direction

comment and help would be appreciate

Best Regard

Gilar Kadarsah | Indonesia

Note: i also upload the AS3 File and FLA File incase need to open it