Flash clock

import flash.utils.Timer;
import flash.events.TimerEvent;

var seconds:int=0
var min:int=0

var myTimer:Timer = new Timer(1000);
myTimer.addEventListener(TimerEvent.TIMER, runOnce);
myTimer.start();

function runOnce(event:TimerEvent):void {
seconds++

if (seconds<10){
clock.text="0"+String(min)+":"+"0"+String(seconds);
}
if (seconds>9){
clock.text="0"+String(min)+":"+String(seconds);
}
if (seconds>=60){
min++
seconds=0
}
}