var countdown = {
  target : new Date(2008, 7, 1),
  offset : 0,
  sec : 0,
  min : 0,
  hour: 0,
  days: 0,
  first: true

}
countdown.start = function() {
  window.setInterval("countdown.tick()",100);
  var now = new Date();
  var server = new Date(2012, 1, 7, 2, 02, 14);
  this.offset = server.getTime() - now.getTime();
  this.tick();
}

countdown.tick = function() {
  var now = new Date();
  var diff = Math.floor((this.target.getTime() - this.offset - now.getTime())/1000);
  if (diff < 0 ) diff = 0;

  var sec = diff % 60;
  var min = Math.floor((diff / 60) % 60);
  var hour =Math.floor((diff / 3600) % 24);
  var days = Math.floor(diff / 86400);

//  console.log("Tick: %d Days %d Hours %d Mins %d Secs",days,hour,min,sec);

  this.transition(sec % 10, this.sec % 10, "sec0");
  this.transition(sec / 10, this.sec / 10, "sec1");
  
  this.transition(min % 10, this.min % 10, "min0");
  this.transition(min / 10, this.min / 10, "min1");

  this.transition(hour % 10, this.hour % 10, "hour0");
  this.transition(hour / 10, this.hour / 10, "hour1");
  
  this.transition(days % 10, this.days % 10, "days0");
  this.transition(days / 10, this.days / 10, "days1");
 
  this.sec = sec;
  this.min = min;
  this.hour = hour;
  this.days = days;
  this.first = false;
  
}

countdown.transition = function(to, from, id) {
  var f = Math.floor(from);
  var t = Math.floor(to);
  var img = document.getElementById(id);
  if (!img) return;

  if (t != f) {
    //console.log("Transition in %s %d => %d",id,f,t);
    img.src = "img/"+id+"/"+f+"-"+t+".gif";
  }
  if (this.first) {
    //Initialisieren
    f = (t + 1) % 10;
    img.src = "img/"+id+"/"+f+"-"+t+".gif";
    //console.log("Init %d-%d",f,t);
  }
}