var gizmo;

function yourClock(){

	var nd = new Date();
	var h, m;
	var s;
	var time = " ";
	h = nd.getHours();
	m = nd.getMinutes();
	s = nd.getSeconds();
	if (h <= 9) h = "0" + h;
	if (m <= 9) m = "0" + m;
	if (s <= 9) s = "0" + s;
	time += h + ":" + m + ":" + s; 
	document.the_clock.the_time.value = time;
	gizmo = setTimeout("yourClock()", 1000);

}

$(document).ready(function() { yourClock(); });
$(window).unload( function() { clearTimeout(gizmo); } );