<!-- Kod za datum -->
function MakeArray(n) {
	this.length = n
	return this
}
monthNames = new MakeArray(12)
monthNames[1] = "Januar"
monthNames[2] = "Februar"
monthNames[3] = "Mart"
monthNames[4] = "April"
monthNames[5] = "Maj"
monthNames[6] = "Jun"
monthNames[7] = "Jul"
monthNames[8] = "Avgust"
monthNames[9] = "Septembar"
monthNames[10] = "Oktobar"
monthNames[11] = "Novembar"
monthNames[12] = "Decembar"
dayNames = new MakeArray(7)
dayNames[1] = "Nedelja"
dayNames[2] = "Ponedeljak"
dayNames[3] = "Utorak"
dayNames[4] = "Sreda"
dayNames[5] = "Četvrtak"
dayNames[6] = "Petak"
dayNames[7] = "Subota"

function danasnji() {
	currentDate = new Date()
	var theDay = dayNames[currentDate.getDay() + 1]
	var theMonth = monthNames[currentDate.getMonth() + 1]
	msie4 = ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 ));
	if (msie4) {
	    var theYear = currentDate.getYear()
	}
	else {
	     var theYear = currentDate.getYear() +1900
	}
	return theDay + " " + currentDate.getDate() + ". " + theMonth + " " + theYear
}
<!-- Kraj koda za datum -->

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)
s=checkTime(s)
document.getElementById('txt').innerHTML=h+":"+m+":"+s
t=setTimeout('startTime()',500)
}

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