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);
         
                   
}

$(document).ready(
	function () {
		countdown(09, 3, 31, 09, 00, 1);
	}
)         
         
function countdown(year, month, day, hour, minute, format) {
   Today = new Date();
   Todays_Year = Today.getFullYear() - 2000;
   Todays_Month = Today.getMonth();
         
   //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 - 1, 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.
         $("#countdown").html(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 ='';
                    
         $("#countdown").html(days + ' day' + dps + ' ');
         $("#countdown").append(hours + 'h ');
         $("#countdown").append(minutes + 'm ');
         $("#countdown").append(seconds + 's');
         break;
      default: 
   		$("#countdown").html(Time_Left + ' seconds');
   }
               
   //Recursive call, keeps the clock ticking.
	setTimeout('countdown(' + year + ',' + month + ',' + day + ',' + hour + ',' + minute + ',' + format + ');', 1000);
}