if (document.images) {
pic1 = new Image();
pic1.src = "pic/nav_home.gif";
pic1over = new Image();
pic1over.src = "pic/nav_home_over.gif";

pic2 = new Image();
pic2.src = "pic/nav_leistungen.gif";
pic2over = new Image();
pic2over.src = "pic/nav_leistungen_over.gif";

pic3 = new Image();
pic3.src = "pic/nav_referenzen.gif";
pic3over = new Image();
pic3over.src = "pic/nav_referenzen_over.gif";

pic5 = new Image();
pic5.src = "pic/nav_kontakt.gif";
pic5over = new Image();
pic5over.src = "pic/nav_kontakt_over.gif";

pic4 = new Image();
pic4.src = "pic/nav_login.gif";
pic4over = new Image();
pic4over.src = "pic/nav_login_over.gif";

pic10 = new Image();
pic10.src = "../pic/up.gif";
pic10over = new Image();
pic10over.src = "../pic/up_over.gif";

pic11 = new Image();
pic11.src = "../pic/down.gif";
pic11over = new Image();
pic11over.src = "../pic/down_over.gif";

} 
function austausch() {
if (document.images) {
for (var i=0; i<austausch.arguments.length; i+=2) {
document[austausch.arguments[i]].src = eval(austausch.arguments[i+1] + ".src");
}}} 

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}