// This script was pulled from the web by SBM on 3/13/06
// Not much thought went into its usage
// http://scripts.franciscocharrua.com/countdown-clock.php

function countdown_clock(year, month, day, hour, minute, format)
{
  //I chose a div as the container for the timer, but
  //it can be an input tag inside a form, or anything
  //who's displayed content can be changed through
  //client-side scripting.
  html_code = '<div id="countdown"></div>';
         
  document.write(html_code);
         
  countdown(year, month, day, hour, minute, format);                
}
         
function countdown(year, month, day, hour, minute, format)
{
  Today = new Date();
  Todays_Year = Today.getFullYear() - 2000;
  Todays_Month = Today.getMonth() + 1;                  
         
  //Convert both today's date and the target date into miliseconds.                           
  Todays_Date = (new Date(Todays_Year, Todays_Month, Today.getDate(), 
                          Today.getHours(), Today.getMinutes(), Today.getSeconds())).getTime();                                 
  Target_Date = (new Date(year, month, day, hour, minute, 00)).getTime();                  
         
  //Find their difference, and convert that into seconds.                  
  Time_Left = Math.round((Target_Date - Todays_Date) / 1000);
         
  if(Time_Left < 0)
     Time_Left = 0;
         
  switch(format)
  {
    case 0:
      //The simplest way to display the time left.
      document.all.countdown.innerHTML = Time_Left + ' seconds';
      break;
    case 1:
      //More detailed.
      days = Math.floor(Time_Left / (60 * 60 * 24));
      Time_Left %= (60 * 60 * 24);
      hours = Math.floor(Time_Left / (60 * 60));
      Time_Left %= (60 * 60);
      minutes = Math.floor(Time_Left / 60);
      Time_Left %= 60;
      seconds = Time_Left;
                    
      dps = 's'; hps = 's'; mps = 's'; sps = 's';
      //ps is short for plural suffix.
      if(days == 1) dps ='';
      if(hours == 1) hps ='';
      if(minutes == 1) mps ='';
      if(seconds == 1) sps ='';
                    
      document.all.countdown.innerHTML = days + ' day' + dps + ' ';
      document.all.countdown.innerHTML += hours + ' hour' + hps + ' ';
      document.all.countdown.innerHTML += minutes + ' minute' + mps + ' and ';
      document.all.countdown.innerHTML += seconds + ' second' + sps;
      break;
    default: 
      document.all.countdown.innerHTML = Time_Left + ' seconds';
  }
               
  //Recursive call, keeps the clock ticking.
  setTimeout('countdown(' + year + ',' + month + ',' + day + ',' + hour + ',' + minute + ',' + format + ');', 1000);
}