countdownTo=new Date();
countdownTo.setYear(2007);
countdownTo.setMonth(6);
countdownTo.setDate(27);
countdownTo.setHours(20);
countdownTo.setMinutes(00);
countdownTo.setSeconds(0);

function countdown() {
  var now=new Date();
  var deltaSecs = Math.floor((countdownTo.getTime()-now.getTime())/1000);
  var txt="";
  var deltaDays=Math.floor(deltaSecs/86400);
  deltaSecs-=86400*deltaDays;
  txt+="<b>"+deltaDays+"</b> dagen, ";
  var deltaHours=Math.floor(deltaSecs/3600);
  deltaSecs-=3600*deltaHours;
  txt+="<b>"+deltaHours+"</b> uur, ";
  var deltaMins=Math.floor(deltaSecs/60);
  deltaSecs-=60*deltaMins;

  txt+="<b>"+deltaMins+"</b> minuten, ";
  txt+="<b>"+deltaSecs+"</b> seconden, ";
  txt=txt.substr(0,txt.length-2);
  document.getElementById("countdown").innerHTML=txt;
  countdownTimer=setTimeout("countdown()",1000);
}