Universal Contdown timer + javascript

//Javascript to create Universal Countdown timer

function GetCount(){
dateFuture = new Date(document.getElementById('servertime').value); // Get server datetime to find time difference between local time and server time as per GMT
var d=new Date();
var localTime = d.getTime();
var localOffset = d.getTimezoneOffset() * 60000;
var utc = localTime + localOffset;
var offset = document.getElementById('offset').value;
var london = utc + (3600000*offset);
dateNow = new Date(london); //grab current date
amount = dateFuture.getTime() - dateNow.getTime(); //calc milliseconds between dates
delete dateNow;

// time is already past
if(amount < 0){
document.getElementById('countbox').innerHTML="Now!";
}
// date is still good
else{
days=0;hours=0;mins=0;secs=0;out="";

amount = Math.floor(amount/1000);//kill the "milliseconds" so just secs

days=Math.floor(amount/86400);//days
amount=amount%86400;

hours=Math.floor(amount/3600);//hours
amount=amount%3600;

mins=Math.floor(amount/60);//minutes
amount=amount%60;

secs=Math.floor(amount);//seconds

if(days != 0){out += days +" day"+((days!=1)?"s":"")+", ";}
if(days != 0 || hours != 0){out += hours +" hour"+((hours!=1)?"s":"")+", ";}
if(days != 0 || hours != 0 || mins != 0){out += mins +" minute"+((mins!=1)?"s":"")+", ";}
out += secs +" seconds";
document.getElementById('countbox').innerHTML=out;
setTimeout("GetCount()", 1000);
}
}


//
//
//