
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = "images/design/" + changeImages.arguments[i+1];
		}
	}
}


var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		stadtplan_01_Imagemap_01_over = newImage("images/design/stadtplan_01-Imagemap_01_ov.gif");
		stadtplan_01_Imagemap_02_over = newImage("images/design/stadtplan_01-Imagemap_02_ov.gif");
		stadtplan_01_Imagemap_03_over = newImage("images/design/stadtplan_01-Imagemap_03_ov.gif");
		stadtplan_01_Imagemap_04_over = newImage("images/design/stadtplan_01-Imagemap_04_ov.gif");
		stadtplan_01_Imagemap_05_over = newImage("images/design/stadtplan_01-Imagemap_05_ov.gif");
		stadtplan_01_Imagemap_06_over = newImage("images/design/stadtplan_01-Imagemap_06_ov.gif");
		stadtplan_01_Imagemap_07_over = newImage("images/design/stadtplan_01-Imagemap_07_ov.gif");
		stadtplan_01_Imagemap_08_over = newImage("images/design/stadtplan_01-Imagemap_08_ov.gif");
		stadtplan_01_Imagemap_09_over = newImage("images/design/stadtplan_01-Imagemap_09_ov.gif");
		stadtplan_01_Imagemap_10_over = newImage("images/design/stadtplan_01-Imagemap_10_ov.gif");
		stadtplan_01_Imagemap_11_over = newImage("images/design/stadtplan_01-Imagemap_11_ov.gif");
		preloadFlag = true;
	}
}


function show(area){
	var p = document.getElementById(area).style.position;
	
	if(p == "relative"){
		document.getElementById(area).style.position = "absolute";
		document.getElementById(area).style.visibility = "hidden";
	}
	else {
		document.getElementById(area).style.position = "relative";
		document.getElementById(area).style.visibility = "visible";
	}	
}


function SelectEmailForm(entry){
  document.forms[0].elements[0].selectedIndex = entry;
}

function showArea(area){
	var p = document.getElementById(area).style.display;
	
	if(p == "none"){
		document.getElementById(area).style.display = "block";
	}
	else {
		document.getElementById(area).style.display = "none";
	}	
}


function pop(url)
{
	window.open(''+url+'','','height=500,width=700,location=no,menubar=no,resizable=yes,status=yes,toolbar=no,scrollbars=yes')
}

function FotoWindow(bildurl,b,h)
{
var eigenschaft,sbreite,shoehe,fenster,b,h;

// stellt die Bildschirmabmessungen fest
// find window size
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);

if(ns6||ns4) {
sbreite = innerWidth;
shoehe = innerHeight;
}
else if(ie4) {
sbreite = document.body.clientWidth;
shoehe = document.body.clientHeight;
}

x = (sbreite-b)/2;
y = (shoehe-h)/2;

eigenschaften="left="+x+",top="+y+",screenX="+x+",screenY="+y+",width="+b+",height="+h+",menubar=no,toolbar=no";

fenster=window.open("","",eigenschaften);
fenster.focus();
fenster.document.open();
with (fenster) {
  document.write('<html><head>');
  document.write("<script type='text/javascript' language='JavaScript'>");
  document.write("function click() { window.close(); } ");
  document.write("document.onmousedown=click ");
  document.write("</script>");
  document.write('<title>Klick to close</title></head>');
  document.write('<' + 'body onblur="window.close()" ');
  document.write('marginwidth="0" marginheight="0" leftmargin="0" topmargin="0">');
  document.write('<center>');
  document.write('<img src="'+ bildurl +'"border="0">');
  document.write('<center>');
  document.write('</body></html>');
  fenster.document.close();
}
}
