d = document;

function Timer()
	{
d.getElementById("Timer").src = "dms/visitcount/cgi/timer.php?b="+TimerBook+"&i="+(new Date()).getTime();
setTimeout('Timer()',30000);
	}
	
d.write('<img src="dms/visitcount/cgi/timer.php" id="Timer" width="1" height="1" style="display:block;position:absolute;" />');

Timer();