function button(dateiname_normal, dateiname_aktiv){
  this.aktiv = new Image();
  this.normal = new Image();
  this.aktiv.src = dateiname_aktiv;
  this.normal.src = dateiname_normal;

}


var bilder = new Array ()

function initialisierung(){

  bilder["meinButton1"]=new button("images/home.jpg","images/home_hi.jpg");  
  bilder["meinButton2"]=new button("images/kataloge.jpg","images/kataloge_hi.jpg");  
  bilder["meinButton3"]=new button("images/plakate.jpg","images/plakate_hi.jpg"); 
  bilder["meinButton4"]=new button("images/cdlp.jpg","images/cdlp_hi.jpg");  
  bilder["meinButton5"]=new button("images/prospekteflyer.jpg","images/prospekteflyer_hi.jpg");  
  bilder["meinButton6"]=new button("images/logo_nav.jpg","images/logo_nav_hi.jpg");  
bilder["meinButton7"]=new button("images/tshirts.jpg","images/tshirts_hi.jpg"); 
bilder["meinButton8"]=new button("images/kontakt.jpg","images/kontakt_hi.jpg"); 
}


function aktivbild(name){
  document.images[name].src=bilder[name].aktiv.src;
}

function normalbild(name){
  document.images[name].src=bilder[name].normal.src;

}