function ErnisDayAndNight () {
	CustomDate = new Date();
	CustomTime = CustomDate.getHours();

	if (CustomTime >= 0 && CustomTime  <=7){ document.getElementById('ErnisDay').innerHTML.value = "Guten Abend!";}
	else if (CustomTime >= 7 && CustomTime <= 11){ document.getElementById('ErnisDay').innerHTML="Guten Morgen!";}
	else if (CustomTime >= 12 && CustomTime <= 17) { document.getElementById('ErnisDay').innerHTML="Guten Tag";}
	else if (CustomTime >= 17 && CustomTime <= 23) { document.getElementById('ErnisDay').innerHTML="Guten Abend!";}
}
setInterval("ErnisDayAndNight ()", 10000);