function switchon(objekt, objektDelay) {
	new Effect.Opacity(objekt, { from: 0, to: 1, duration: 0.2, delay: objektDelay});
}
function switchoff() {
	$('agentur').setOpacity(0); $('agentur').style.visibility = 'visible';
	$('design').setOpacity(0); $('design').style.visibility = 'visible';
	$('training').setOpacity(0); $('training').style.visibility = 'visible';
	$('consulting').setOpacity(0); $('consulting').style.visibility = 'visible';
	$('aktionen').setOpacity(0); $('aktionen').style.visibility = 'visible';
	$('kontakt').setOpacity(0); $('kontakt').style.visibility = 'visible';
}
function menu_rendern() {
	switchoff();
	switchon('agentur', 0)
	switchon('design', 0)
	switchon('training', 0)
	switchon('consulting', 0)
	switchon('aktionen', 0)
	switchon('kontakt', 0)
}