function startTime() {

var today=new Date()
var h=today.getHours()
var m=today.getMinutes()
var s=today.getSeconds()
// add a zero in front of numbers<10
m=checkTime(m)
if (h>12) {
	h=h-12;
	tmd = "pm";
}
else
	tmd = "am";
document.getElementById('txt').innerHTML=today.toLocaleDateString()+" " + h+":"+m + " " + tmd;
t=setTimeout('startTime()',500)
}

function checkTime(i)
{
if (i<10) 
  {i="0" + i}
  return i
}