function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; 
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; 
  if(d.images){ 
  	if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
    for(i=0; i<a.length; i++)
    	if (a[i].indexOf("#")!=0){ 
    	d.MM_p[j]=new Image; 
    	d.MM_p[j++].src=a[i];
    }
  }
}

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];
   }
}


function vor(){
	which++;
	if (which>anzahl){
		which=1;
	}
	document.images.bild.src = "../img/nixpix.gif";
	document.images.bild.src = "../img/" + which + ".jpg";
}
	
function zurueck(){
	which--;
	if (which<1){
		which=anzahl;
	}
	document.images.bild.src = "../img/nixpix.gif";
	document.images.bild.src = "../img/" + which + ".jpg";
}