function hodiny()
{
	today=new Date();

	hour=today.getHours();
	minute=today.getMinutes();
	second=today.getSeconds();

	cas=((hour<10) ? "0" : "")+hour;
	cas+=((minute<10) ? ":0" : ":")+minute;
	cas+=((second<10) ? ":0" : ":")+second;

	document.formular.display.value=cas;
	setTimeout("hodiny()",1000);
}