function countdown_clock(unixtimestamp, uid, live) {
		
		html_code = '<span id="countdown_' + uid + '"></span>';
		
		document.write(html_code);
		
		countdown(unixtimestamp, uid, live);
	}
	   
	function countdown(unixtimestamp, uid, live) {
		
		 timeleft = Math.round(unixtimestamp);
		 
		 if(timeleft < 0)
		    timeleft = 0;
		 
	    //More datailed.
	    days = Math.floor(timeleft / (60 * 60 * 24));
	    timeleft %= (60 * 60 * 24);
	    hours = Math.floor(timeleft / (60 * 60));
	    timeleft %= (60 * 60);
	    minutes = Math.floor(timeleft / 60);
	    timeleft %= 60;
	    seconds = timeleft;
	    
	    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_'+uid).innerHTML = "";
	    
	    if(days > 0)
	    	document.getElementById('countdown_'+uid).innerHTML = days + ' day' + dps + ' ';
	    
	    if(hours > 0 || days > 0)	
	    	document.getElementById('countdown_'+uid).innerHTML += hours + ' hour' + hps + ' ';
	    	
	    if(minutes > 0 || days > 0 || hours > 0)
	    	document.getElementById('countdown_'+uid).innerHTML += minutes + ' minute' + mps + ' and ';
	    
	    if(seconds > 0 || minutes > 0 || days > 0 || hours > 0)
	    	document.getElementById('countdown_'+uid).innerHTML += seconds + ' second' + sps;
	    else {
	    	document.getElementById('countdown_'+uid).innerHTML = "Finished";
	    	return false;
	    }
		  
		  if(live != false) {
				 //Recursive call, keeps the clock ticking.
				 setTimeout('countdown(' + (unixtimestamp - 1) + ',' + uid + ', true);', 1000);
			}	
	}