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) {
  if (secs < 0) {
       if(arguments[3] != '')
        {
            document.getElementById(arguments[3]).style.display = "none";
            document.getElementById(arguments[4]).style.display = "block";
        }
        document.getElementById(arguments[1]).innerHTML = '00:00:00';
    return;
  }
  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));
  document.getElementById(arguments[1]).innerHTML = DisplayStr;
  if (true)
  {
    var CountStepper = -1;
    setTimeout("CountBack(" + (secs+CountStepper) + ",'"+arguments[1]+"','0','"+arguments[3]+"','"+arguments[4]+"')",1000);
  }
}

function putspan(backcolor, forecolor) {
 document.write("<span id='cntdwn' style='background-color:" + backcolor + 
                "; color:" + forecolor + "'></span>");
}
var DisplayFormat ="%%D%%:%%H%%:%%M%%:%%S%%";
var LeadingZero =true;
function CountVarStart(TargetDate,BackColor,ForeColor,CountActive,CountStepper,LeadingZero,DisplayFormat1,FinishMessage,DivID,ImageOnID,ImageOffID)
{
    if (typeof(BackColor)=="undefined")
      BackColor = "white";
    if (typeof(ForeColor)=="undefined")
      ForeColor= "black";
    if (typeof(TargetDate)=="undefined")
      TargetDate = "12/31/2020 5:00 AM";
   
    if (typeof(CountActive)=="undefined")
      CountActive = true;
    if (typeof(FinishMessage)=="undefined")
      FinishMessage = "";
    if (typeof(CountStepper)!="number")
      CountStepper = -1;
    if (typeof(LeadingZero)=="undefined")
      LeadingZero = true;
    CountStepper = Math.ceil(CountStepper);
    if (CountStepper == 0)
      CountActive = false;
     SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 990;
    putspan(BackColor, ForeColor);
    var dthen = new Date(TargetDate);
    var dnow = new Date();
    if(CountStepper>0)
      ddiff = new Date(dnow-dthen);
    else
      ddiff = new Date(dthen-dnow);
    gsecs = Math.floor(ddiff.valueOf()/1000);
    CountBack(gsecs,DivID,SetTimeOutPeriod,ImageOnID,ImageOffID);
}