function einblenden(objekt, objektDelay) {
	new Effect.Opacity(objekt, { from: 0, to: 1, duration: 1.0, delay: objektDelay});
}
function ausblenden() {
	$('start_logo').setOpacity(0); $('start_logo').style.visibility = 'visible';
	$('start_theme1').setOpacity(0); $('start_theme1').style.visibility = 'visible';
	$('start_theme2').setOpacity(0); $('start_theme2').style.visibility = 'visible';
}
function rendern() {
	ausblenden();
	einblenden('start_logo', 0)
	einblenden('start_theme1', 1)
	einblenden('start_theme2', 4)
}