function countdown_clock(year, month, day, hour, minute, format)
{
	html_code = '<div id="countdown_container"></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();                  
 
 //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.all.countdown_container.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.all.countdown_container.innerHTML = days + ' day' + dps + ' ';
			document.all.countdown_container.innerHTML += hours + ' hour' + hps + ' ';
			document.all.countdown_container.innerHTML += minutes + ' minute' + mps + ' and ';
			document.all.countdown_container.innerHTML += seconds + ' second' + sps;
			break;
	   default: 
			document.all.countdown_container.innerHTML = Time_Left + ' seconds';
	   }
	   
 //Recursive call, keeps the clock ticking.
 setTimeout('countdown(' + year + ',' + month + ',' + day + ',' + hour + ',' + minute + ',' + format + ');', 1000);
 }