function SetDate(objDate)
{
	var hours=objDate.getHours()
	var minutes=objDate.getMinutes()
	var seconds=objDate.getSeconds()

  if (hours==0)
      hours='0'+hours;
  if (minutes<=9)
      minutes='0'+minutes;
  if (seconds<=9)
      seconds='0'+seconds;

	var field=document.getElementById('datumcas');
	if (field)
		field.innerHTML = hours+':'+minutes+':'+seconds;
}

function Clock()
{
	var currentDate = new Date()
	SetDate(currentDate);
	setTimeout('Clock()',1000)
}
function InitClock()
{
	Clock();
}
evt.add(window, "load", InitClock);