function rollover(name,over){
if(document.images){
if(over)
document.images[name].src='/bilder/' + name + '_on.jpg';
else
document.images[name].src='/bilder/' + name + '_off.jpg';
}
}

//function thumbnail(bild){
//document.images['bild_gross'].src='bilder/' + bild + '_mittel.jpg';
//}

function subnav_on(name){
name2=name + '_a';
document.all[name].style.backgroundImage="url(bilder/subnav_bg_on.jpg)";
}

function subnav_off(name){
name2=name + '_a';
document.all[name].style.backgroundImage="url(bilder/subnav_bg.jpg)";
}

function popup(datei) {
  fenster=window.open(datei, "fenster2", "width=800, height=560");
  fenster.focus();
}