function countdown(obj)
{
	this.obj = obj;
	this.Div = "clock";
//	this.BackColor = "white";
//	this.ForeColor = "black";
	this.TargetDate = "04/11/1981 1:21 AM";
	this.DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
	this.CountActive = true;
	this.FinishMessage = "Done!";
	this.DisplayStr;

	this.Calcage = cd_Calcage;
	this.CountBack = cd_CountBack;
	this.Setup = cd_Setup;
}

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)
{
	if (secs < 0) {
    document.getElementById(this.Div).innerHTML = this.FinishMessage;
    return;
  }
  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 = 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);
}