function fadeStartImages() {
	var $alt = $('#images div.obersteebene');

	if ($alt.next().length)
		var $neu = $alt.next();
	else
		var $neu = $('#images div:first');

	$alt.addClass('mittlereebene');
	$alt.removeClass('obersteebene');
	$neu.css( {
		opacity : 0.0
	});
	$neu.addClass('obersteebene');

	$neu.animate( {
		opacity : 1.0
	}, 2000, function() {
		$alt.removeClass('mittlereebene');
	});
}

function fadeStartLinks() {
	var $alt = $('#cbdesc div.cbdactive');

	if ($alt.next().length)
		var $neu = $alt.next();
	else
		var $neu = $('#cbdesc div.cbdesc:first');

	$alt.removeClass('cbdactive');
	$neu.addClass('cbdactive');
}
function fadeStartButton() {
	var $alt = $('#sbutton img.obersteebene');

	if ($alt.next().length)
		var $neu = $alt.next();
	else
		var $neu = $('#sbutton img:first');

	$alt.addClass('mittlereebene');
	$alt.removeClass('obersteebene');
	$neu.css( {
		opacity : 0.0
	});
	$neu.addClass('obersteebene');

	$neu.animate( {
		opacity : 1.0
	}, 2000, function() {
		$alt.removeClass('mittlereebene');
	});
}