/*
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%% gün, %%H%% saat, %%M%% dakika, %%S%% saniye.";
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 "<b>" + s + "</b>";
}

function CountBack(secs, elementId) 
{
  	if (secs < 0) 
  	{
    		document.getElementById(elementId).innerHTML = FinishMessage;
    		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(elementId).innerHTML = DisplayStr;
  	if (CountActive)
  	{
    		setTimeout("CountBack(" + (secs+CountStepper) +",'"+ elementId +"')", 1000);  	
	}
}

function putspan(backcolor, forecolor, elementId) 
{
	if(elementId!=null)
	{
		document.write("<span id='"+ elementId +"'></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%% gün, %%H%% sa, %%M%% dk ve %%S%% sn.";
if (typeof(CountActive)=="undefined")
  	CountActive = true;
if (typeof(FinishMessage)=="undefined")
  	FinishMessage = "";
if (typeof(CountStepper)!="number")
  	CountStepper = -1;
if (typeof(LeadingZero)=="undefined")
  	LeadingZero = true;

function countDown(dateStr, elementId)
{
	CountStepper = Math.ceil(CountStepper);
	if (CountStepper == 0)
	{
	  	CountActive = false;
	}
	var SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 990;
	//putspan(BackColor, ForeColor, elementId);
	var dthen = new Date(dateStr);
	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,elementId);
}