var yOpacity = 0;
var wOpacity = 0;
var bildNr = 0;

function galerieStart(b){
	document.getElementById('galeriehintergrund').style.display = 'block';
	document.getElementById('galerie').style.display = 'none';
	fadeIn('galeriehintergrund');
	bildNr = b;
	setTimeout("ladeBild('" + b + "')", 500);
	
}

function fadeIn(id) {
		e = document.getElementById(id);
		yOpacity += 0.1 ;
		e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
		if(yOpacity < 0.75){
			setTimeout("fadeIn('" + id + "')", 5);
		}else{
			yOpacity = 0.75;
		}
}

function ladeBild(i){
	
	var bildName = bildnamen[i];
	//bildNummer = parseInt(i)+1 ;

	document.getElementById('galerietext').innerHTML = bildtitel[i] + '<br /> <br />' + bildtext[i] + '<br /> <br /><a href="#" onclick="schliessen();" onfocus="this.blur();">Fenster schliessen</a>';
	var pfad = 'bilder/'+ rubrik +'/'+ bildName ;
	e = document.getElementById("gb");
	yOpacity = 0.1;
	e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
	
	bildGross = new Image();
	bildGross.src = pfad;	
	bildGross.onload = function(){
		document.galeriebild.src = bildGross.src;
		setTimeout("fadeInBild('gb')", 50);
	}
}

function fadeInBild(id) {
	e = document.getElementById(id);
	document.getElementById('galerie').style.display = 'block';
	yOpacity += 0.1 ;
	e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
	if(yOpacity < 1){
		setTimeout("fadeInBild('" + id + "')", 30);
	}
	if(yOpacity > 0.9){
		//document.getElementById('galerie').style.display = 'block';
	}
}

function closeAktuell(){
	document.getElementById('aktuellhintergrund').style.display = 'none';
	document.getElementById('aktuellbild').style.display = 'none';
}

function schliessen(){
	document.getElementById('galerie').style.display = 'none';
	document.galeriebild.src = 'images/spacer.gif';
	yOpacity = 0.75;
	fadeout('galeriehintergrund');
}

function schliessenLageplan(){
	document.getElementById('galerie').style.display = 'none';
	yOpacity = 0.75;
	fadeout('galeriehintergrund');
}

function fadeout(id){
	e = document.getElementById(id);
	yOpacity -= 0.1 ;
	e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
	if(yOpacity > 0.1){
		setTimeout("fadeout('" + id + "')", 20);
	}else{
		yOpacity = 0;
		wOpacity = 0;
		e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
		document.getElementById('galeriehintergrund').style.display = 'none';
	}
}

// Galeriefunktion
function bildWechsel(a){
	// wenn nächstes bild angeklickt (1)
	document.getElementById('galerie').style.display = 'none';
	if(a == 1){ 
	
		if(bildNr < maxB){ // wenn letztes bild einer galerie nocht nicht erreicht
			bildNr++; 
		}else{ 
			bildNr = 1; 
		}
	// wenn vorheriges bild angeklickt (0)	
	}else{ 
	
		if(bildNr > 1){ // wenn letztes bild einer galerie nocht nicht erreicht
				bildNr--; 
			}else{ 
				bildNr = maxB; 
			}
		}
	ladeBild(bildNr);	
}

function lageplan(id){

		e = document.getElementById(id);
		document.getElementById(id).style.display = 'block';
		document.getElementById('galerie').style.display = 'block';
		document.getElementById('galeriebild').style.display = 'block';
		document.getElementById('galerietext').style.display = 'block';
		yOpacity += 0.1 ;
		e.style.opacity = yOpacity; e.style.MozOpacity = yOpacity; e.style.filter = "alpha(opacity=" + (yOpacity*100) + ")";
		if(yOpacity < 0.75){
			setTimeout("lageplan('" + id + "')", 5);
		}else{
			yOpacity = 0.75;

		}
}

function showLegend(a){
	document.getElementById(a).style.display = 'block';
}
function hideLegend(a){
	document.getElementById(a).style.display = 'none';
}

// Mailverschl�sselung ************************************************
function m(nam,adr){
	document.writeln("<a href=mailto:"+nam+"@"+adr+">"+nam+"@"+adr+"</a>");
}
function mm(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];}
}