elemente = new Array("wolke_wellness", "wolke_krafttraining", "wolke_zirkel", "wolke_abnehme", "wolke_myline", "wolke_cycling", "wolke_thairobic", "wolke_yoga");

ziel = 7*(Math.random());
ziel = Math.round(ziel);

var ziel_element = elemente[ziel];

window.setTimeout('animation(ziel_element)',1000);


function animation(ziel_element){

	var objekt = document.getElementById(ziel_element);
	
	var start1 = objekt.style.opacity;
	var start2 = objekt.style.filter='alpha';
	
	for (var i = start1; i > 0; i = i - 0.1)
	{
		objekt.style.opacity=i;
	}
}