function countdown(obj)
{
	this.obj		= obj;
	this.Div		= "clock1";
	this.Hidden;
	this.BackColor		= "white";
	this.ForeColor		= "black";
	this.TargetDate		= "12/31/2020 5:00 AM";
	this.DisplayFormat	= "%%H%%:%%M%%:%%S%%";
	this.CountActive	= true;
	this.DisplayStr;
	this.Calcage		= cd_Calcage;
	this.CountBack		= cd_CountBack;
	this.Setup		= cd_Setup;
	
    // get all of the input tags
	var arr = document.getElementsByTagName("input");
	
    for (var i = 0; i < arr.length; i++)
	{
        var element = arr[i].id;
        if(element.indexOf("hiddenTimer") != -1)
        {
            this.Hidden = element;
            break;
        }
    }
}

function cd_Calcage(secs, num1, num2)
{
  s = ((Math.floor(secs/num1))%num2).toString();
  if (s.length < 2) s = "0" + s;
  return (s);
}
function cd_CountBack(secs)
{
  this.DisplayStr = this.DisplayFormat.replace(/%%D%%/g,	this.Calcage(secs,86400,100000));
  this.DisplayStr = this.DisplayStr.replace(/%%H%%/g,		this.Calcage(secs,3600,24));
  this.DisplayStr = this.DisplayStr.replace(/%%M%%/g,		this.Calcage(secs,60,60));
  this.DisplayStr = this.DisplayStr.replace(/%%S%%/g,		this.Calcage(secs,1,60));

  document.getElementById(this.Div).innerHTML = "<b>Kalan S&#xFC;re: </b>" + this.DisplayStr;
  document.getElementById(this.Hidden).value = this.DisplayStr;
  if (this.CountActive) setTimeout(this.obj +".CountBack(" + (secs-1) + ")", 990);
}

function cd_Setup()
{
	var dthen	= new Date(this.TargetDate);
  	var dnow	= new Date();
	ddiff		= new Date(dthen-dnow);
	gsecs		= Math.floor(ddiff.valueOf()/1000);
	this.CountBack(gsecs);
}