function calcage(secs, num1, num2) {
  s = ((Math.floor(secs/num1))%num2).toString();
  if (LeadingZero && s.length < 2)
    s = "0" + s;
  return "<b>" + s + "</b>";
}

function CountBack(secs,TagId,CountActive,CountStepper,SetTimeOutPeriod,aukcio_id) {
  if (secs < 0) {
    document.getElementById(TagId).innerHTML = FinishMessage;
    return;
  }
    
  var DisplayStr = "";
  
  var nap = Math.floor(secs/(24*60*60));
	var maradek_mp = secs%(24*60*60);
  var ora = Math.floor(maradek_mp/(60*60));

	if (nap != 0) {
		 DisplayStr = nap+' nap<br>';
	}
	if (ora != 0 && nap == 0) {
		 DisplayStr = ora+' óra<br>';
	}
  if (nap==0 && ora==0) {
    DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000));
    DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24));
    DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60));
    DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60));
  }

  try {
    document.getElementById(TagId).innerHTML = DisplayStr;
  } catch (err) {
  }
  
  if (CountActive) {
    var ret = setTimeout("CountBack(" + (secs+CountStepper) + ",'"+TagId+"',"+CountActive+","+CountStepper+","+SetTimeOutPeriod+","+aukcio_id+")", SetTimeOutPeriod);
    eval('window.counter_' + aukcio_id + ' = ' + ret);
  }
}

function showCountDown(TagId,TargetDate,NowDate,aukcio_id) {
	if (typeof(DisplayFormat)=="undefined")
	  DisplayFormat = "%%M%%:%%S%% perc<br> ";
	if (typeof(CountActive)=="undefined")
	  CountActive = true;
	if (typeof(FinishMessage)=="undefined")
	  FinishMessage = "00:00 perc<br> ";
	if (typeof(CountStepper)!="number")
	  CountStepper = -1;
	if (typeof(LeadingZero)=="undefined")
	  LeadingZero = true;
	
	CountStepper = Math.ceil(CountStepper);
	if (CountStepper == 0)
	  CountActive = false;
	var SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 990;

	var dthen = new Date(TargetDate.substr(0,4),TargetDate.substr(5,2)-1,TargetDate.substr(8,2),TargetDate.substr(11,2),TargetDate.substr(14,2),TargetDate.substr(17,2),0);
	var dnow = new Date(NowDate.substr(0,4),NowDate.substr(5,2)-1,NowDate.substr(8,2),NowDate.substr(11,2),NowDate.substr(14,2),NowDate.substr(17,2),0);

	if(CountStepper>0)
	  var ddiff = dnow.getTime()-dthen.getTime();
	else
	  var ddiff = dthen.getTime()-dnow.getTime();
	var gsecs = Math.floor(ddiff/1000);
	CountBack(gsecs,TagId,CountActive,CountStepper,SetTimeOutPeriod,aukcio_id);
}