if (document.images) {            // Active Images
            fotoalbumon = new Image();
            fotoalbumon.src = "gifs/fotoalbum_1.gif";
            homeon = new Image();
            homeon.src = "gifs/home_1.gif";
            lebenslaufon = new Image();
            lebenslaufon.src = "gifs/lebenslauf_1.gif";
            linkson = new Image();
            linkson.src = "gifs/links_1.gif";
            nahamwasseron = new Image();
            nahamwasseron.src = "gifs/nahamwasser_1.gif";
            newson = new Image();
            newson.src = "gifs/news_1.gif";
            songson = new Image();
            songson.src = "gifs/songs_1.gif";

            fotoalbumoff = new Image();
            fotoalbumoff.src = "gifs/fotoalbum_0.gif";
            homeoff = new Image();
            homeoff.src = "gifs/home_0.gif";
            lebenslaufoff = new Image();
            lebenslaufoff.src = "gifs/lebenslauf_0.gif";
            linksoff = new Image();
            linksoff.src = "gifs/links_0.gif";
            newsoff = new Image();
            newsoff.src = "gifs/news_0.gif";
            nahamwasseroff = new Image();
            nahamwasseroff.src = "gifs/nahamwasser_0.gif";
            songsoff = new Image();
            songsoff.src = "gifs/songs_0.gif";
       }

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}