/*
 *	07.06.2007
 *	Sebastian Basler
 *	like that code?
 *	feel free to copy ;)
 *	i can't control it anyway :D
 */	
	
	/* anzeigen udn verstecken von div elementen */
	function show(nr)
	{
		try{
			hideAll();
		}catch (e){
		
		}finally{
			document.getElementById(nr).style.visibility = "visible";
		}
	}
	function hide(nr)
	{
		document.getElementById(nr).style.visibility = "hidden";
	}
	function hideAll(){
		for (var i = 1; i <= 4; i++){
			document.getElementById(i).style.visibility = "hidden";
		}
	}
	
	
	/* neues fesnter ?ffnen */
	var objekt_fenster;
	function oeffnen_fenster(url_seite, breite, hoehe)
	{
		if (objekt_fenster != null && !objekt_fenster.closed){
			objekt_fenster.close();
		}
		objekt_fenster = open(url_seite, "fenster_bild", "width=" + breite + ",height=" + hoehe + "status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=yes");
	}
	
	function makeFav()
	{
	    if ((navigator.appName == "Microsoft Internet Explorer") &&
	          (parseInt(navigator.appVersion) >= 4))
	    {
	        var url= location.href
	        var title= document.title;
	        window.external.AddFavorite(url,title)
	    }
	    else
	    {
	        var FavText = location.href
	        if(navigator.appName == "Netscape")
	        {
	           FavText += " mit den Tasten STRG+D.";
	        }
	        FavText += " zu den Favoriten hinzufuegen";
	        alert(FavText);
	    }
	}
	
	
	/* temin ein-/ausschalten */
	function termin(){
		if(document.Anfrage.probefahrt.checked){
			document.getElementById(1).style.visibility = "visible";
		}else{
			document.getElementById(1).style.visibility = "hidden";
		}
	}
	
	
	function checkEmail () {
		if (document.Anfrage.mail.value == "") {
	    	alert("Bitte Ihre Email Adresse eingeben!");
	    	document.Anfrage.mail.focus();
	    	return false;
		}
	}
	
	
	/* Mouseover bilder tauschen und vorladen */
	home_normal = new Image();
	home_normal.src = "images/home.gif";
	home_highlight = new Image();
	home_highlight.src = "images/home.gif";
	
	rueck_normal = new Image();
	rueck_normal.src = "images/pfeil_zurueck_2.gif";
	rueck_highlight = new Image();
	rueck_highlight.src = "images/pfeil_zurueck_1.gif";
	
	vor_normal = new Image();
	vor_normal.src = "images/pfeil_vor_2.gif";
	vor_highlight = new Image();
	vor_highlight.src = "images/pfeil_vor_1.gif";

	function Bildwechsel (Bildnr, Bildobjekt){
		window.document.images[Bildnr].src = Bildobjekt.src;
	}
	
	function preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}

function 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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = findObj(args[2])) != null && !img.init) {
      img.init = true; img.up = args[3]; img.dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = findObj(args[i])) != null) {
        if (!img.up) img.up = img.src;
        img.src = img.dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = findObj(args[i])) != null) {
      if (!img.up) img.up = img.src;
      img.src = (img.dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.nbOver.length; i++) {
      img = document.nbOver[i]; img.src = (img.dn) ? img.dn : img.up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.up; img.dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = findObj(args[i])) != null) {
      if (!img.up) img.up = img.src;
      img.src = img.dn = (args[i+1])? args[i+1] : img.up;
      nbArr[nbArr.length] = img;
  } }
}