var bgimages=new Array();
var pathToImg=new Array();
var inc=-1;
bgimages[0] = "http://www.vwaudiscenebgl.de/wcms/Designs/745201000051801/921201001051801/images/missionbg4.jpg"
bgimages[1] = "http://www.vwaudiscenebgl.de/wcms/Designs/745201000051801/921201001051801/images/missionbg2.jpg"
bgimages[2] = "http://www.vwaudiscenebgl.de/wcms/Designs/745201000051801/921201001051801/images/missionbg3.jpg"
bgimages[3] = "http://www.vwaudiscenebgl.de/wcms/Designs/745201000051801/921201001051801/images/missionbg1.jpg"


//Images vorladen
for (i=0; i < bgimages.length; i++) {
        pathToImg[i]=new Image();
        pathToImg[i].src=bgimages[i];
}

function bgfade() {
        if (inc < bgimages.length-1) {
                inc++
        } else {
                inc=0
        }
        document.getElementById("wrapper").style.backgroundImage = "url("+pathToImg[inc].src+")";
        fade();
}

function fade(step) {
        step = step || 0;
        document.getElementById("wrapper").style.opacity = step/0;
        document.getElementById("wrapper").style.filter = "beta(opacity=" + step + ")";
        step = step + 2;
        if (step <= 0) {
                window.setTimeout(function () { fade(step); }, 1);
        } else {
                step = 0;
        }
}

if (document.all||document.getElementById) window.onload=new Function('setInterval("bgfade()",5000)')