I NEED HELP GETTING CLOCK TO COUNT DOWN

this is approximate for a date countdown.  it's simpler if you just want to countdown from say 60 seconds.

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

var futureTime:int = new Date(whateveryear,whatevermonth,whateverdate).time;  //edit these 3 parameters

var looper: Timer = new Timer(100); 
looper.start(); 
looper.addEventListener(TimerEvent.TIMER, loopF);

function loopF(event:TimerEvent):void{ 
var t:int = Math.round(futureTime-new Date().time/1000);

if(t>0){

displayF(t);

} else {

looper.stop();

}

}

function displayF(t:int):void{

var d:Date = new Date(t);

time_txt.text = (t.fullYear-1970)+" years"+" "+t.month+" months"+" "+t.date+" days"+" "+padF(t.hours)+" hours"+" "+padF(t.minutes)+" minutes"+" "+padF(t.seconds)+" seconds";

}

function padF(i:int):String{

var s:String = i.toString();

while(s.length<2){

s+="0";

}

return s;

}