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();        
		 
		// alert(Today);  
		// alert(Todays_Year);  
		// alert(Todays_Month);        
         //alert(Today.getDate());
         //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.
                    document.getElementById('countdown').innerHTML = Time_Left + ':';
                    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)).toString();
					if (hours.length < 2) 
						{	
						  hours = "0" + hours;
						}
                    Time_Left %= (60 * 60);
                    minutes = Math.floor(Time_Left / 60).toString();
                    if (minutes.length < 2) 
						{	
						  minutes = "0" + minutes;
						}
					Time_Left =  (Time_Left % 60).toString();
					
					if (Time_Left.length < 2) 
						{	
						  Time_Left = "0" + Time_Left;
						}
                    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_day').innerHTML = days;
                    document.getElementById('countdown_hours').innerHTML = hours ;
                    document.getElementById('countdown_mins').innerHTML = minutes ;
                    break;
               //default: 
                    //document.getElementById('countdown').innerHTML = Time_Left + ':';
               }
               
         //Recursive call, keeps the clock ticking.
         setTimeout('countdown(' + year + ',' + month + ',' + day + ',' + hour + ',' + minute + ',' + format + ');', 1000);
         }
countdown(12,5,20,00,00,1);