Flex 4 timers keep Firing - function

Question

I'm trying to create a simple flex4 project which involves some timers that trigger other functions.
I don't have much experience with Action Script and even less with timer events.
Here is a bit of my code it seems to be working for the most part but you lines were I'm adding up the total score (score = score +1;) seems to just keep adding and adding when I test the application. I think its because the timers keep firing the function but I'm not sure.
private var score:int = 0;
private function submit():void {
this.currentState = 'loading';
var timer:Timer = new Timer(2200);
timer.addEventListener(TimerEvent.TIMER, removeLoading);
timer.start();
}
private function removeLoading(event:TimerEvent):void{
removeloading.play();
var timer1:Timer = new Timer(1000);
timer1.addEventListener(TimerEvent.TIMER, viewResults);
timer1.start();
this.currentState = 'results';
}
private function viewResults(event:TimerEvent):void{
if (q1_t.selected == true){
answer1m.text = 'You Answer the Question Correctly.';
score = score +1;
} else {
answer1m.text ='The Correct answer was: '+ q1_t.label;
}
if (q2_f.selected == true){
answer2m.text = 'You Answer the Question Correctly.';
score = score +1;
} else {
answer2m.text ='The Correct answer was: '+ q2_f.label;
}
finalscore.text = score.toString();
}

Answer 1

So I did a bit more research and turns out I hadn't included the second timer parameter.
The second parameter is the number of times that the TimerEvent.TIMER event will be dispatched before stopping. If you set the second parameter to 0 (zero) or omitted it completely, the timer would run forever (or until you called the stop() method on the timer instance.
Since I only want to run the event once I need to add 1.
From this:
var timer:Timer = new Timer(2200);
To this:
var timer:Timer = new Timer(2200,1);