/*
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, css_class, title ) {
  s = ((Math.floor(secs/num1))%num2).toString();
  
  if ( s <= 0 && css_class == 'days') return '';
  
  if( s < 0 ) s = 0;
  
  if (LeadingZero && s.length < 2)
    s = "0" + s;      
  return '<em>' + s + '</em>' + title;
}

function CountBack(secs, days, hours, minutes, seconds ) {
  /*if (secs < 0) {
    document.getElementById("cntdwn").innerHTML = FinishMessage;
    return;
  }*/   
   
  DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000,'days',days));
  DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24,'hours', hours));
  DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60,'minutes', minutes));
    
  if (calcage(secs,86400,100000,'days',days) == '') 
    DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60,'seconds', seconds));
  else
    DisplayStr = DisplayStr.replace(/%%S%%/g, '');

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

function putspan(backcolor, forecolor) {
 document.write("<span id='cntdwn' style='background-color:" + backcolor + 
                "; color:" + forecolor + "'></span>");
}