// Javascript countdown timer originating from
// http://scripts.franciscocharrua.com/countdown-clock.php
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.getElementById('countdown').innerHTML = Time_Left + ' seconds';
                break;
           case 1:
                //More datailed.
                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.getElementById('countdown').innerHTML = 'Rally starts in ' + days + ' day' + dps + ' ';
                document.getElementById('countdown').innerHTML += hours + ' hour' + hps + ' ';
                document.getElementById('countdown').innerHTML += minutes + ' minute' + mps + ' and ';
                document.getElementById('countdown').innerHTML += seconds + ' second' + sps;
                break;
           default: 
                document.getElementById('countdown').innerHTML = Time_Left + ' seconds';
    }
           
    //Recursive call, keeps the clock ticking.
    setTimeout('countdown(' + year + ',' + month + ',' + day + ',' + hour + ',' + minute + ',' + format + ');', 1000);
}