function getNextImage(currentImage) {
	nextImage = currentImage + 1;
	if(nextImage == numberOfImages)
		nextImage = 0;
	return nextImage;
}

function change(nextImage) {
	$("#bildunterschrift").delay(500).fadeOut(500, function(){ $(this).text($("#imagefade-img-" + nextImage).attr("alt")).fadeTo(500, 0.7) });
	$("#bildauswahl span").delay(500).fadeTo(500, 0.4);
	$("#bildauswahl-" + nextImage).stop().delay(500).fadeTo(500, 0.9);
	$("[id^=imagefade-img-]").fadeOut(2000);
	$("#imagefade-img-" + nextImage).stop().fadeIn(2000);
	
	if(play) {
		aktiv = window.setTimeout("change(" + getNextImage(nextImage) + ")", displayTime+2000);
	}
}

$(document).ready(function(){
	$(".imageFade").show();
	var firstImage = Math.round( Math.random()*(numberOfImages-1) );
	//alert(firstImage);
	var secondImage = getNextImage(firstImage);
	$("#imagefade-img-" + firstImage).show();
	$("#bildunterschrift").text($("#imagefade-img-" + firstImage).attr("alt")).fadeTo("fast", 0.7);
	$("#bildauswahl span").fadeTo(0, 0.4).click(function(){
		window.clearTimeout(aktiv);
		change($(this).attr("data-image")*1);
	});
	$("#bildauswahl-" + firstImage).fadeTo(0, 0.9);
	
	if(play) {
		aktiv = window.setTimeout("change(" + secondImage + ")", 2000);
	}
});