Noob question: How to update very basic as2 code to as3.

Question

I've been asked to update a web banner with old as2 code, and not being a coder or a regular Flash user, I'm stuck with what I'm sure is a simple problem. The code in the opening frame is;
function timeOut(pauseTime) {
  stop();
  pauseTimer = setInterval(this, "goPlay", pauseTime);
function goPlay() {
  play();
  clearInterval(pauseTimer);
After that there are a few frames that include timeOut(500); code, which seems basic enough, so I imagine my problems are all in the opening code.
I get 4 errors that all refer to Frame 1;
1120: Access of undefined property pauseTimer.
1067: Implicit coercion of a value of type CapOne_MM_648x480b_fla:MainTimeline to an unrelated type Function.
1067: Implicit coercion of a value of type String to an unrelated type Number.
1120: Access of undefined property pauseTimer.
Can anyone help or point me in the right direction? Thanks.

Answer 1

For the code you show there would be no need to convert to AS3 since between AS2 and AS3 it hasn't changed.  One thing you do need to do is declare variables and since pauseTimer is used in mutliple functions it needs to be declared outside any functions.  Another thing you need to do is specify the variable types, including the arguments passed into function.  As for the setInterval call itself it appears to be written incorrectly....
var   pauseTimer:Number;
function timeOut(pauseTime:Number) {
      stop();
     pauseTimer = setInterval(goPlay, pauseTime);