function preload() {

    document.Vorladen = new Array();
 
    if(document.images) {
        for(var i = 0; i < preload.arguments.length; i++) {
            document.Vorladen[i] = new Image();
            document.Vorladen[i].src = preload.arguments[i];
        }
    }
}

preload('/images/aktuell_off.gif', '/images/aktuell_on.gif', '/images/ueberuns_off.gif', '/images/ueberuns_on.gif', '/images/pflanzensort_off.gif', '/images/pflanzensort_on.gif', '/images/ausbildung_off.gif', '/images/ausbildung_on.gif', '/images/kontakt_off.gif', '/images/kontakt_on.gif', '/images/head_hg.gif', '/images/head_logo.gif', '/images/content_hg.gif', '/images/footer_hg.gif');