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];}
}

var isDHTML = 0;
var isID = 0;
var isAll = 0;
var isLayers = 0;


if (document.getElementById) {isID = 1; isDHTML = 1;}
else {
if (document.all) {isAll = 1; isDHTML = 1;}
else {
browserVersion = parseInt(navigator.appVersion);
if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers = 1; isDHTML = 1;}
}}


function findDOM(objectID,withStyle) {
	if (withStyle == 1) {
		if (isID) { return (document.getElementById(objectID).style) ; }
		else { 
			if (isAll) { return (document.all[objectID].style); }
		else {
			if (isLayers) { return (document.layers[objectID]); }
		};}
	}
	else {
		if (isID) { return (document.getElementById(objectID)) ; }
		else { 
			if (isAll) { return (document.all[objectID]); }
		else {
			if (isLayers) { return (document.layers[objectID]); }
		};}
	}
}

function setVisibility(objectID,state) {
	var dom = findDOM(objectID,1);
	dom.visibility = state;
}


function backgrdOn() {
setVisibility('steinBox','hidden');
setVisibility('fluggeBox','hidden');
setVisibility('esperBox','hidden');
setVisibility('backgrdBox','visible');
document.backgrnd.src='images/sub_backgrnd_on.gif';
document.stein.src='images/sub_stein_off.gif';
document.flugge.src='images/sub_flugge_off.gif';
document.esper.src='images/sub_esper_off.gif';
myFlag = 'background';
}

function steinOn() {
setVisibility('steinBox','visible');
setVisibility('fluggeBox','hidden');
setVisibility('esperBox','hidden');
setVisibility('backgrdBox','hidden');
document.backgrnd.src='images/sub_backgrnd_off.gif';
document.stein.src='images/sub_stein_on.gif';
document.flugge.src='images/sub_flugge_off.gif';
document.esper.src='images/sub_esper_off.gif';
myFlag = 'stein';
}

function fluggeOn() {
setVisibility('steinBox','hidden');
setVisibility('fluggeBox','visible');
setVisibility('esperBox','hidden');
setVisibility('backgrdBox','hidden');
document.backgrnd.src='images/sub_backgrnd_off.gif';
document.stein.src='images/sub_stein_off.gif';
document.flugge.src='images/sub_flugge_on.gif';
document.esper.src='images/sub_esper_off.gif';
myFlag = 'flugge';
}

function esperOn() {
setVisibility('steinBox','hidden');
setVisibility('fluggeBox','hidden');
setVisibility('esperBox','visible');
setVisibility('backgrdBox','hidden');
document.backgrnd.src='images/sub_backgrnd_off.gif';
document.stein.src='images/sub_stein_off.gif';
document.flugge.src='images/sub_flugge_off.gif';
document.esper.src='images/sub_esper_on.gif';
myFlag = 'esper';
}

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);