// Ab hier kann man die Variablen ändern

var fadeDuration = 30; // Wie lange dauert Fade Effekt
var steps = 2; // Wieviele Transparenzschritte sollen gemacht werden

var blendImg = 'bgImg';

// Ab hier nichts mehr ändern

var index = 0;

function changeImg() 
{       
    if (index<=100)
    {
        setTimeout("changeOpac(" + index + ",'" + blendImg + "')",fadeDuration);
        index = index + steps;

    }
    else
    {
//        document.getElementById("body").style.backgroundImage = "none";
//        document.getElementById("body").style.backgroundAttachment = "scroll";
//        document.getElementById("bgImg").style.backgroundAttachment = "scroll";
    }
}



//change the opacity for different browsers
function changeOpac(opacity, id) 
{
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
    changeImg();
}