function uhrzeit() {
	var curDateTime = new Date();
	var curHour = curDateTime.getHours();
	var curMin = curDateTime.getMinutes();
	var curSec = curDateTime.getSeconds();
	var curTime = 
	((curHour < 10) ? "0" : "") + curHour + ":" 
	+ ((curMin < 10) ? "0" : "") + curMin;
	document.getElementById('uhrzeit').innerHTML = curTime;
}