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

function CountBack(secs) {
  if (secs < 0) {
    document.getElementById("cntdwn").innerHTML = FinishMessage;
    return;
  }
  DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000));
  DisplayStr = DisplayStr.replace("0", "۰");
  DisplayStr = DisplayStr.replace("1", "۱");
  DisplayStr = DisplayStr.replace("2", "۲");
  DisplayStr = DisplayStr.replace("3", "۳");
  DisplayStr = DisplayStr.replace("4", "۴");
  DisplayStr = DisplayStr.replace("5", "۵");
  DisplayStr = DisplayStr.replace("6", "۶");
  DisplayStr = DisplayStr.replace("7", "۷");
  DisplayStr = DisplayStr.replace("8", "۸");
  DisplayStr = DisplayStr.replace("9", "۹");
  DisplayStr = DisplayStr.replace("۰۰", "۰");
  DisplayStr = DisplayStr.replace("۰۱", "۱");
  DisplayStr = DisplayStr.replace("۰۲", "۲");
  DisplayStr = DisplayStr.replace("۰۳", "۳");
  DisplayStr = DisplayStr.replace("۰۴", "۴");
  DisplayStr = DisplayStr.replace("۰۵", "۵");
  DisplayStr = DisplayStr.replace("۰۶", "۶");
  DisplayStr = DisplayStr.replace("۰۷", "۷");
  DisplayStr = DisplayStr.replace("۰۸", "۸");
  DisplayStr = DisplayStr.replace("۰۹", "۹");
  DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24));
  DisplayStr = DisplayStr.replace("0", "۰");
  DisplayStr = DisplayStr.replace("1", "۱");
  DisplayStr = DisplayStr.replace("2", "۲");
  DisplayStr = DisplayStr.replace("3", "۳");
  DisplayStr = DisplayStr.replace("4", "۴");
  DisplayStr = DisplayStr.replace("5", "۵");
  DisplayStr = DisplayStr.replace("6", "۶");
  DisplayStr = DisplayStr.replace("7", "۷");
  DisplayStr = DisplayStr.replace("8", "۸");
  DisplayStr = DisplayStr.replace("9", "۹");
  DisplayStr = DisplayStr.replace("۰۰", "۰");
  DisplayStr = DisplayStr.replace("۰۱", "۱");
  DisplayStr = DisplayStr.replace("۰۲", "۲");
  DisplayStr = DisplayStr.replace("۰۳", "۳");
  DisplayStr = DisplayStr.replace("۰۴", "۴");
  DisplayStr = DisplayStr.replace("۰۵", "۵");
  DisplayStr = DisplayStr.replace("۰۶", "۶");
  DisplayStr = DisplayStr.replace("۰۷", "۷");
  DisplayStr = DisplayStr.replace("۰۸", "۸");
  DisplayStr = DisplayStr.replace("۰۹", "۹");
  DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60));
  DisplayStr = DisplayStr.replace("0", "۰");
  DisplayStr = DisplayStr.replace("1", "۱");
  DisplayStr = DisplayStr.replace("2", "۲");
  DisplayStr = DisplayStr.replace("3", "۳");
  DisplayStr = DisplayStr.replace("4", "۴");
  DisplayStr = DisplayStr.replace("5", "۵");
  DisplayStr = DisplayStr.replace("6", "۶");
  DisplayStr = DisplayStr.replace("7", "۷");
  DisplayStr = DisplayStr.replace("8", "۸");
  DisplayStr = DisplayStr.replace("9", "۹");
  DisplayStr = DisplayStr.replace("۰۰", "۰");
  DisplayStr = DisplayStr.replace("۰۱", "۱");
  DisplayStr = DisplayStr.replace("۰۲", "۲");
  DisplayStr = DisplayStr.replace("۰۳", "۳");
  DisplayStr = DisplayStr.replace("۰۴", "۴");
  DisplayStr = DisplayStr.replace("۰۵", "۵");
  DisplayStr = DisplayStr.replace("۰۶", "۶");
  DisplayStr = DisplayStr.replace("۰۷", "۷");
  DisplayStr = DisplayStr.replace("۰۸", "۸");
  DisplayStr = DisplayStr.replace("۰۹", "۹");
  DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60));
  DisplayStr = DisplayStr.replace("0", "۰");
  DisplayStr = DisplayStr.replace("1", "۱");
  DisplayStr = DisplayStr.replace("2", "۲");
  DisplayStr = DisplayStr.replace("3", "۳");
  DisplayStr = DisplayStr.replace("4", "۴");
  DisplayStr = DisplayStr.replace("5", "۵");
  DisplayStr = DisplayStr.replace("6", "۶");
  DisplayStr = DisplayStr.replace("7", "۷");
  DisplayStr = DisplayStr.replace("8", "۸");
  DisplayStr = DisplayStr.replace("9", "۹");
  DisplayStr = DisplayStr.replace("0", "۰");
  DisplayStr = DisplayStr.replace("۱1", "۱۱");
  DisplayStr = DisplayStr.replace("۲2", "۲۲");
  DisplayStr = DisplayStr.replace("۳3", "۳۳");
  DisplayStr = DisplayStr.replace("۴4", "۴۴");
  DisplayStr = DisplayStr.replace("۵5", "۵۵");
  DisplayStr = DisplayStr.replace("۶6", "۶۶");
  DisplayStr = DisplayStr.replace("۷7", "۷۷");
  DisplayStr = DisplayStr.replace("۸8", "۸۸");
  DisplayStr = DisplayStr.replace("۹9", "۹۹");
  DisplayStr = DisplayStr.replace("۰۰", "۰");
  DisplayStr = DisplayStr.replace("۰۱", "۱");
  DisplayStr = DisplayStr.replace("۰۲", "۲");
  DisplayStr = DisplayStr.replace("۰۳", "۳");
  DisplayStr = DisplayStr.replace("۰۴", "۴");
  DisplayStr = DisplayStr.replace("۰۵", "۵");
  DisplayStr = DisplayStr.replace("۰۶", "۶");
  DisplayStr = DisplayStr.replace("۰۷", "۷");
  DisplayStr = DisplayStr.replace("۰۸", "۸");
  DisplayStr = DisplayStr.replace("۰۹", "۹");
  

  document.getElementById("cntdwn").innerHTML = DisplayStr;
  if (CountActive)
    setTimeout("CountBack(" + (secs+CountStepper) + ")", SetTimeOutPeriod);
}

function putspan(backcolor, forecolor) {
 document.write("<span dir='rtl' id='cntdwn' style='margin:0 15px 0 0;float:right;background-color:" + backcolor + 
                "; color:" + forecolor + "'></span>");
}

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(DisplayFormat)=="undefined")
  DisplayFormat = "%%D%% روز, %%H%% ساعت, %%M%% دقیقه, %%S%% ثانیه";
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;
var 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);