function bildergalerie() {
	img_width = 760;
	img_height = 610;
	var url_name = window.location.pathname;
	url_name = url_name.replace(/\/C:/, "C:");
	url_name = url_name.replace(/\.html/, "/bilder.html");
	var wndname = "Galerie_" + window.name;
	var wnd = open(url_name,
             wndname,
             "width=" + img_width + ",height=" + img_height + ",toolbar=no,location=no,directories=no,status=no,statusbar=no,menubar=no,scrollbars=auto,resizable,dependent");
	wnd.focus();
}

function init_bildergalerie() {
	if (document.images) {
		var theImgs = new Array();
		var img_cnt = document.images.length-1;
		for (var i=1; i<=img_cnt; i++) {
			var bildurl = document.images[i].src;
			bildurl = bildurl.replace(/images/, "images/gross");
	  	theImgs[i] = new Image();
			theImgs[i].src = bildurl;
	  }
	}
	document.getElementById("bildnummer").innerHTML="1 / "+ (document.images.length-1);
}

function bildnummer(img_name){
		var img_cnt = document.images.length-1;
		var i= 0;
		for (i=1; i<=img_cnt; i++) {
			if (document.images[i].src.indexOf(img_name) > 0) {
				break;
			}
		}
		document.getElementById("bildnummer").innerHTML=i +" / "+ img_cnt;
}


function change(img_name) {
	bildnummer(img_name);
	document['bild'].src = "/images/gross/" + img_name + ".jpg";
}