/*
Author: Robert Hashemian
http://www.hashemian.com/

You can use this code in any manner so long as the author's
name, Web address and this disclaimer is kept intact.
********************************************************
Usage Sample:

<script language="JavaScript">
TargetDate = "12/31/2020 5:00 AM";
BackColor = "palegreen";
ForeColor = "navy";
CountActive = true;
CountStepper = -1;
LeadingZero = true;
DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
FinishMessage = "It is finally here!";
</script>
<script language="JavaScript" src="http://scripts.hashemian.com/js/countdown.js"></script>
*/

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

var firstRefresh = false;

function CountBack(secs, id) {
  if (secs < 0) {
    //document.getElementById("cntdwn").innerHTML = "";
    return;
  }
  seconds = calcage(secs,1,60);
  if (seconds == "59" || !firstRefresh) {
    days    = calcage(secs,86400,100000);
    hours   = calcage(secs,3600,24);
    minutes = calcage(secs,60,60);
    firstRefresh = true;
  }
  	if (document.getElementById("dayLeft" +id) && document.getElementById("hourLeft" +id) && document.getElementById("minuteLeft" +id) ) {
	    document.getElementById("dayLeft" +id).innerHTML = days;
	    document.getElementById("hourLeft" +id).innerHTML = hours;
	    document.getElementById("minuteLeft" +id).innerHTML = minutes;
	  	document.getElementById("secondLeft" +id).innerHTML = seconds;
	}
	
  if (document.getElementById("minuteLeft"+ id))
	  if (CountActive)
	    setTimeout("CountBack(" + (secs+CountStepper) + "," + id+")", SetTimeOutPeriod);

}
	//MM/DD/AAAA hh:mm PM/AM"
  TargetDate = "02/06/2000 8:30 PM";
  CountActive = true;
  CountStepper = -1;
  LeadingZero = true;


CountStepper = Math.ceil(CountStepper);
if (CountStepper == 0)
  CountActive = false;

var SetTimeOutPeriod = ((Math.abs(CountStepper)-1)*1000 + 990);
var dthen;
//var dnow = new Date();

function startCountdown( id, target, now) {
	firstRefresh = false;
	TargetDate = target;
	dthen = new Date(TargetDate);
	
	var dnow = new Date(now);
	
  	if(CountStepper>0)
    	ddiff = new Date(dnow-dthen);
  	else
    	ddiff = new Date(dthen-dnow);
  
  	gsecs = Math.floor(ddiff.valueOf()/1000)-2;
  	CountBack(gsecs, id);
}