var stadtmarketing_aus = new Image();
stadtmarketing_aus.src = "images/links/stadtmarketing.gif";
var stadtmarketing_an = new Image();
stadtmarketing_an.src = "images/links/stadtmarketing_aktiv.gif";

var informationen_aus = new Image();
informationen_aus.src = "images/links/informationen.gif";
var informationen_an = new Image();
informationen_an.src = "images/links/informationen_aktiv.gif";

var forum_aus = new Image();
forum_aus.src = "images/links/forum.gif";
var forum_an = new Image();
forum_an.src = "images/links/forum_aktiv.gif";

var aktuelles_aus = new Image();
aktuelles_aus.src = "images/links/aktuelles.gif";
var aktuelles_an = new Image();
aktuelles_an.src = "images/links/aktuelles_aktiv.gif";

var links_aus = new Image();
links_aus.src = "images/links/links.gif";
var links_an = new Image();
links_an.src = "images/links/links_aktiv.gif";

var impressum_aus = new Image();
impressum_aus.src = "images/links/impressum.gif";
var impressum_an = new Image();
impressum_an.src = "images/links/impressum_aktiv.gif";

function rein(bild)
{
  eval("if(document.images['"+bild+"']) document.images['"+bild+"'].src="+bild+"_an.src;");
}

function raus(bild)
{
  eval("if(document.images['"+bild+"']) document.images['"+bild+"'].src="+bild+"_aus.src;");
}