how to change boolean values with timerEvent in as3 - actionscript-3

Question

I had written this small code to change a boolean value for 0 to 1 and vice versa every second
but it doesnt work.
The result is it always stays as 0. I must be making some stupid mistake. Please help. Thanks
var booleanL:Number = 0;
var myTimerL:Timer = new Timer(1000,60);
myTimerL.addEventListener(TimerEvent.TIMER, timerListenerL);
function timerListenerL (e:TimerEvent):void{
if(booleanL == 0) {
booleanL = 1;
} else if(booleanL == 1) {
booleanL = 0;
}
}
myTimerL.start();
trace(booleanL);

Answer 1

EDIT:
You can try using the computer clock time to make a stopwatch. The boolean will update every time the clock's end_time time is [delay] seconds higher than start_time. Delay is set by this line: delay = start_time.seconds + 2; here gives +2 seconds delay as limit before update
Try it like this...
import flash.display.MovieClip;
import flash.utils.Timer;
import flash.utils.getTimer;
import flash.events.TimerEvent;
import flash.events.Event; //added this for enter frame events
public class timer extends MovieClip
{
public var booleanL:int = 0;
public var start_time:Date = new Date;
public var end_time:Date = new Date;
public var delay:int;
public function timer()
{
//var myTimerL:Timer = new Timer(1000, 5);
//myTimerL.addEventListener(TimerEvent.TIMER, timerListenerL);
//myTimerL.start();
timer_Reset();
}
function timerListenerL ():void //(event:TimerEvent):void
{
trace("Am updating Boolean...");
if( 1 == booleanL)
{ booleanL = 0; trace(booleanL); }
else if (0 == booleanL)
{ booleanL = 1; trace(booleanL);}
}
//USE REAL TIME CLOCK VERSION
public function timer_Reset():void
{
start_time = new Date; //reset time to now..
delay = start_time.seconds + 2; //two seconds test delay
stage.addEventListener(Event.ENTER_FRAME, _update);
}
function _update (e:Event):void
{
//set end_time to now-time every frame,
//then check if end seconds are [+ delay] higher than start_time.seconds
end_time = new Date(); //set to Now time
if (end_time.seconds == delay)
{
trace(end_time.hours + ":" + end_time.minutes + ":" + end_time.seconds);
stage.removeEventListener(Event.ENTER_FRAME, _update);
timerListenerL (); //we update boolean via this function
timer_Reset(); //we reset for next check via this function
}
}
}