function StartAfteller() {ToonCountdown(StelIn());}
window.onload = StartAfteller;

function StelIn() {
 var totDatum = new Date();
 totDatum.setMonth(10);
 totDatum.setDate(14);
 totDatum.setHours(15);
 totDatum.setMinutes(0);
 totDatum.setSeconds(0);
 var vanDatum = new Date();
 vanDatum.setMinutes(vanDatum.getMinutes() + vanDatum.getTimezoneOffset());
 var ResterendeTijd = new Date(0);
 ResterendeTijd.setMilliseconds(totDatum - vanDatum);
 return Math.floor(ResterendeTijd.valueOf()/1000);
}

function ToonCountdown(countdown) {
 if (countdown < 0) document.getElementById('countdown-p').innerHTML = "Wedstrijd is begonnen!";
 else {var secs = countdown % 60; 
  var countdown1 = (countdown - secs) / 60;
  var mins = countdown1 % 60; 
  countdown1 = (countdown1 - mins) / 60;
  var hours = countdown1 % 24;
  var days = (countdown1 - hours) / 24
  document.getElementById('countdown-p').innerHTML = 'Nog ' + days + ' dag' + (days == 1 ? '' : 'en') + ' ' + hours + (hours == 1 ? ' uur ' : ' uren ') + '<br/> ' + mins + (mins == 1 ? ' minuut ' : ' minuten ') + secs + ' second' + (secs == 1 ? '' : 'en');
 setTimeout('ToonCountdown('+(countdown-1)+');',999);
 }
}