Help importing a class and initializing it

Question

Hi guys...
I have a (what I think is) a little problem but after being the whole night awake I can´t think anymore...
I have a button which sends you to frame 10 and in frame 10 I suppose to intialize the class I imported:
import Payment;
getpremium.addEventListener(MouseEvent.CLICK, PI);
function PI(e:MouseEvent):void {
     gotoAndStop(10);
Now in frame 10 the only thing I have is:
Payment();
and the class (how it starts) is:
package
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.IOErrorEvent;
    import flash.events.MouseEvent;
    import flash.net.URLLoader;
    import flash.net.URLRequest;
    import flash.text.TextField;
    import flash.text.TextFormat;  //etc
public class Payment extends Sprite
        private var paymentSystem:PaymentSystem;
        private var buyList:List;
        private var loader:URLLoader;
        private var pastPurchases:Array = [];
        private var alltextformats:TextFormat = new TextFormat();
        public function Payment()
            paymentSystem = new PaymentSystem(); //etc
What do I suposse to write down on frame 10 for the class to be initialized?
Thanks!!!

Answer 1

Normally what you need to do is instantiate a Payment object...
import Payment;
var payment:Payment = new Payment();