Powerpointe gömülmüş swf sayaç sorunu (timer problemi)

import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.events.MouseEvent;
import flash.media.Sound;

var sure:uint = 60;// sn 
var sayac:uint=sure;
zaman.text = String(sure);

var gongsesi:Gong=new Gong();
var tiksesi:Tiktak=new Tiktak();
var bitissesi:Bitim=new Bitim();
var channel:SoundChannel;

baslat_mc.addEventListener(MouseEvent.CLICK, baslat_tikla);
function baslat_tikla(e:MouseEvent):void
{
	if (!timer.running)
	{
		trace("basla");
		zaman.text = String(sure);
		channel = gongsesi.play();
		timer.start();
	}

}

durdur_mc.addEventListener(MouseEvent.CLICK, durdur_tikla);
function durdur_tikla(e:MouseEvent):void
{
	if (timer.running)
	{
		trace("dur");
		sayac=sure;
		zaman.text = String(sure);
		channel.stop();
		timer.reset();
	}

}




var timer:Timer = new Timer(1000,sure);
timer.addEventListener(TimerEvent.TIMER, tick);
timer.addEventListener(TimerEvent.TIMER_COMPLETE,surebitti);


function tick(e:TimerEvent):void
{
	//zaman.text=timer.time;
	sayac--;
	zaman.text = String(sayac);
	if (sayac==5)
	{
		channel = tiksesi.play();
	}
	//trace();
}

function surebitti(e:TimerEvent):void
{
	trace("süre bitti");
	channel.stop();
	channel = bitissesi.play();
	sayac=sure;
	timer.stop();
	timer.reset();
	//zaman.text = String(sure);
}