function zufallsbild(){
	var i = Math.ceil(Math.random() * 5) ;
	var b = '../inc/images/bg/'+ i +'.jpg';
	document.body.style.backgroundImage="url('"+b+"')";
	d=document;
	if(i == 2 || i == 4 || i == 5){			
		css = d.createElement("link");
		css.setAttribute("href","../inc/css/home2.css");
		css.setAttribute("rel","stylesheet");
		css.setAttribute("type","text/css");
		d.getElementsByTagName("head")[0].appendChild(css);				
	}
	d.getElementById("bildlegendehome").innerHTML = bildlegendeArr[i];
}

// Bildnavigation 

SelectedElementID = "imgnav1";
function ChangeClass(ElementType,MyEvent,MyID)
{
  if(ElementType == "SPAN")
  {
    if(MyEvent == "click")
    {
      if(SelectedElementID != "")
      {
        document.getElementById(document.getElementById(SelectedElementID).childNodes.item(0).getAttribute('id')).className = 'imgnav';
      }
      SelectedElementID = MyID;
      document.getElementById(document.getElementById(MyID).childNodes.item(0).getAttribute('id')).className = "imgnavselected";
    }
  }
}



function closePU(p){
	if(document.getElementById(p)){
		document.getElementById(p).style.display = 'none';
	}
	if(document.zoomImage.src){
		document.zoomImage.src = '../inc/images/spacer.gif';
	} 

}

// Popups Ansprechpartner
var currPopupAP = 0;

function closePopup(p,x){
	pup = 'popup'+ p;
	document.getElementById(pup).style.display = 'none';
	currPopupAP = 0;
	if(x != 2){
		ChangeClass('SPAN','click','imgnav0');		
	}
}
function openPopup(p,id){
	if(currPopupAP != 0){ closePopup(currPopupAP,2); }
	currPopupAP = p;
	pup = 'popup'+ currPopupAP;
	document.getElementById(pup).style.display = 'block';
	ChangeClass('SPAN','click',id);
}

var currOpenedImagePopup = 'imagePopup1';

// Bildvergrösserung 
function openImage(img,i){		
	e = "bild"+i;
	p = 'imagePopup'+i;
	im = 'zoomImage'+i;
	document.getElementById(currOpenedImagePopup).style.display = 'none';	
	currOpenedImagePopup = p;
	var ypos = document.getElementById(e).offsetTop;
	document[im].src = img;	
	document.getElementById(p).style.top = ypos+'px';
	document.getElementById(p).style.display = 'block';	
}

function openZoom(img,i){	
	e = "bild"+i;
	var ypos = document.getElementById(e).offsetTop;
	document.zoomImage.src = img;	
	document.getElementById('imagePopup').style.top = ypos+'px';
	document.getElementById('imagePopup').style.display = 'block';	
}

function closeImagePopup(p,i){
	if(document[i].src){
		document[i].src = '../inc/images/spacer.gif';
	} 
	document.getElementById(p).style.display = 'none';	
}

function openObjectsImage(img){
	document.zoomImage.src = img;
}

// Mailverschlüsselung 
function m(nam,adr){
	document.writeln("<a href=mailto:"+nam+"@"+adr+">"+nam+"@"+adr+"</a>");
}
function m2(nam,adr,text){
	document.writeln("<a href=mailto:"+nam+"@"+adr+">"+text+"</a>");
}



function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

// Grafische Navigation ************************************************
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 sI(a) { 
  document[a].src = '../inc/images/peu_n.png';
}