function popupimg(file, format) {
  var typ = "dhtml";
  var closeText = "klicken zum Schliessen";
  var w = 640;
  var h = 480;
  
  if(format > 0){
    w = 480;
    h = 640;
    }
  
  file = "images/stories/gallerie/" + file;
  
	if(typ == "dhtml") {
		if(document.all) {
			var windowWidth = self.document.body.clientWidth;
			var windowHeight = self.document.body.clientHeight;
			var scrolltop = document.body.scrollTop;
			var scrollleft = document.body.scrollLeft;
		} else {
			var windowWidth = self.innerWidth;
			var windowHeight = self.innerHeight;
			var scrolltop = document.documentElement.scrollTop;
			var scrollleft = document.documentElement.scrollLeft;
		}
		var postop =(windowHeight/2)-(h/ 2)+scrolltop+document.body.style.padding;
		var posleft =(windowWidth/2)-(w/ 2)+scrollleft+document.body.style.padding;
		if(document.all) {
			if(postop >= 20) { postop = postop-20; }
		} else {
			if(postop >= 30) { postop = postop-30; }
		}
		var bodyObj = document.getElementsByTagName('BODY')[0];
		if(!document.getElementById("dynamicImageContainer")) {
			divObjContainer = document.createElement("div");
			divObjContainer.setAttribute("id", "dynamicImageContainer");
			bodyObj.appendChild(divObjContainer);
			//bodyObj.insertBefore(divObjContainer, bodyObj.firstChild);
		} else {
			divObjContainer = document.getElementById("dynamicImageContainer");
		}
		divObjContainer.style.display = "block";
    
    if(format > 0)
      posleft = 260;
    else
      posleft = 170;
    
		divObjContainer.innerHTML = "<div class=\"imageContainer\" style=\"top:"+postop+"px; left:"+posleft+"px; position: absolute; display:block;\"><div style=\"background-color: #fff; padding: 2px; border: solid 1px #ccc\"><img onclick=\"closepopupimg();\" style=\"cursor:pointer;border: solid 1px #000\" src=\""+file+"\" alt=\""+closeText+"\" title=\""+closeText+"\" width=\""+w+"\" height=\""+h+"\"\/><\/div><\/div>";
	} else if(typ == "javascript") {
		// center popup
		var postop =(screen.height /2)-(h/ 2);
		var posleft =(screen.width /2)-(w/ 2);
		window.open(file+'&closeText='+encodeURI(closeText)+'', '', 'dependent=yes,width='+w+',height='+h+',left='+posleft+',top='+postop+',scrollbars=no,resizable=no,menubar=no,location=no,status=no');

    return false;
	}
}
function closepopupimg() {
	document.getElementById("dynamicImageContainer").style.display = "none";
}

function setheaderbg(dateien, pfad){
  var idx = Math.round( (dateien.length - 1) * Math.random() );
  idx = idx * 1;
  var datei = pfad+dateien[idx];
  
  document.getElementById("headerright").style.backgroundImage="url("+datei+")";
}