Toggle on/off music button in a closed loop

programming flash
1

Hello!
I’m only really a beginner using Actionscript and have just spent the last few hours writing out some code for a play/pause button that toggles between the play and pause state when clicked. However only afterwards realizing i need to run it in a closed loop (of about 2 or 3 frames) and when this is done, it triggers the audio over and over about a thousand times a second as its just running the code over and over.

I’m fairly certain this is not possible, is there anything i can add so that it will run as I want to in a closed loop?
Thanks, Rory

[SIZE=6]Code:[/SIZE]

import flash.media.SoundChannel;
import flash.events.MouseEvent;
import flash.events.Event;

var soundplaying:Boolean = true;
var lastposition:Number = 0;
var mysound:drumnbass = new drumnbass();
var soundchannel:SoundChannel = new SoundChannel ();

soundchannel = mysound.play(0,2);

soundchannel.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete);
function onPlaybackComplete(event:Event):void
{
lastposition = 0;
soundchannel.stop();
playpausebutton1.pausebutton1.visible = false;
soundplaying = false;
}

playpausebutton1.addEventListener(MouseEvent.CLICK, playsound);
function playsound(event:MouseEvent) :void
{
if (soundplaying = false)
{
soundchannel = mysound.play(lastposition, 2);
playpausebutton1.pausebutton1.visible = true;
soundplaying = true;
}
else
{
lastposition = soundchannel.position;
soundchannel.stop();
playpausebutton1.pausebutton1.visible = false;
soundplaying = false;
}

soundchannel.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete1);
function onPlaybackComplete1(event:Event):void
{
    lastposition = 0;
    soundchannel.stop();
    playpausebutton1.pausebutton1.visible = false;
    soundplaying = false;
}

}