function hideall() {
 if(DOM || MS) {
  getElem("id","sub_start",null).style.display = "none";
  getElem("id","sub_kuenstler",null).style.display = "none";
  getElem("id","sub_programm",null).style.display = "none";
  getElem("id","sub_informationen",null).style.display = "none";
  getElem("id","sub_interaktiv",null).style.display = "none";
  getElem("id","sub_kontakt",null).style.display = "none";
  getElem("id","sub_sponsoren",null).style.display = "none";
  getElem("id","menu_start",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_kuenstler",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_programm",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_informationen",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_interaktiv",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_kontakt",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_sponsoren",null).style.backgroundColor = "#BCBDC0";
  getElem("id","menu_start",null).style.color = "#E0068C";
  getElem("id","menu_kuenstler",null).style.color = "#E0068C";
  getElem("id","menu_programm",null).style.color = "#E0068C";
  getElem("id","menu_informationen",null).style.color = "#E0068C";
  getElem("id","menu_interaktiv",null).style.color = "#E0068C";
  getElem("id","menu_kontakt",null).style.color = "#E0068C";
  getElem("id","menu_sponsoren",null).style.color = "#E0068C";
 }
 else if(NS) {
  getElem("id","sub_start",null).display = "none";
  getElem("id","sub_kuenstler",null).display = "none";
  getElem("id","sub_programm",null).display = "none";
  getElem("id","sub_informationen",null).display = "none";
  getElem("id","sub_interaktiv",null).display = "none";
  getElem("id","sub_kontakt",null).display = "none";
  getElem("id","sub_sponsoren",null).display = "none";
  getElem("id","menu_start",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_kuenstler",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_programm",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_informationen",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_interaktiv",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_kontakt",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_sponsoren",null).backgroundColor = "#BCBDC0";
  getElem("id","menu_start",null).color = "#E0068C";
  getElem("id","menu_kuenstler",null).color = "#E0068C";
  getElem("id","menu_programm",null).color = "#E0068C";
  getElem("id","menu_informationen",null).color = "#E0068C";
  getElem("id","menu_interaktiv",null).color = "#E0068C";
  getElem("id","menu_kontakt",null).color = "#E0068C";
  getElem("id","menu_sponsoren",null).color = "#E0068C";
 }
}

function menu(cat) {
 hideall();
 if(DOM || MS) {
  getElem("id","sub_"+cat,null).style.display = "inline";
  getElem("id","menu_"+cat,null).style.backgroundColor = "#E0068C";
  getElem("id","menu_"+cat,null).style.color = "#BCBDC0";
 }
 else if(NS) {
  getElem("id","sub_"+cat,null).display = "inline";
  getElem("id","menu_"+cat,null).backgroundColor = "#E0068C";
  getElem("id","menu_"+cat,null).color = "#BCBDC0";
 }

}