How to go to next scene if a number equals zero - actionscript-3

Question

I'm creating game where when an object rolls over another object the object disappears and when it does 1 is taken from a thing on the stage that counts how many objects are left; however, I want it so that when it equals zero it goes to a new scene. This is my code so far:
var nObjects:Number = 5;
An.addEventListener( Event.ENTER_FRAME, handleCollision4)
function handleCollision4( e:Event ):void
{
if(An.hitTestObject(Octo)){
An.addEventListener(MouseEvent.MOUSE_UP, onStopDrag4);
function onStopDrag4(e:MouseEvent):void {
e.target.StopDrag;
if(An.hitTestObject(Octo)){
removeChild(MovieClip(Octo));
nObjects--;
trace(nObjects)
myText.text = String(nObjects);
}
}
//there are five of these when they are all deleted nObjects does equal zero
if (nObjects==0);
{
gotoAndStop(1, "Scene 3");
}

Answer 1

You need to close your handleCollision4 and its if statement. To help keep that clear (where encapsulation occurs) remember to always properly indent your code as it will make it easier for others (and you) to read it and spot syntax errors.
In onStopDrag4, you have what looks like a function call to StopDrag. Don't forget your parenthesis.
Your test for if (nObjects == 0) { is outside your onStopDrag4 listener, meaning it only runs once during the initial document read; you want it inside the listener so it gets run after each nObject decrement. Also, do not add semicolons after a condition.
Properly formatted, it should look like this:
var nObjects:Number = 5;
An.addEventListener(Event.ENTER_FRAME, handleCollision4)
function handleCollision4(e:Event):void {
if (An.hitTestObject(Octo)) {
An.addEventListener(MouseEvent.MOUSE_UP, onStopDrag4);
}
}
function onStopDrag4(e:MouseEvent):void {
e.target.StopDrag();
if (An.hitTestObject(Octo)) {
removeChild(MovieClip(Octo));
nObjects--;
trace(nObjects)
myText.text = String(nObjects);
}
//there are five of these when they are all deleted nObjects does equal zero
if (nObjects == 0) {
gotoAndStop(1, "Scene 3");
}
}