// JavaScript Document
var clicked = null;
var lastClick =null;
		
if (document.images) {
	buttonson=new MakeArray(27);
	buttonsoff=new MakeArray(27);
		for (var i=1; i<28; i++){
			buttonson[i].src="nav_pics/but" +i.toString() + "_act.gif";
			buttonsoff[i].src="nav_pics/but" +i.toString() + ".gif";
		}
}
	
function MakeArray(n) {
	this.length = n
    	for (var i = 1; i<=n; i++) {
           this[i] = new Image()
        }
        return this
}
		
function activate(name) {
	if (document.images)
	 top.document['P' + name.toString()].src = buttonson[name].src;
}
		


function deActivate(name) {
	if (document.images && (name!=clicked) )
		top.document['P' + name.toString()].src = buttonsoff[name].src;
}
               
                
function setClick(name) {
var hausGrau = top.document.getElementById("hausGrau");
var theIframe = top.document.getElementById("iFrames");
var EnglishGrau = top.document.getElementById("EnglishGrau");
clicked = name;
	if(name >1){
		hausGrau.style.display ="none";
	}else if(name =1){
		hausGrau.style.display ="block";
	}
	if (lastClick != null) {
		deActivate(lastClick);
		}
		lastClick = clicked;
			if(clicked!=26){
			activate(27);
			EnglishGrau.style.display ="none";
			}
}


var headerMenu = top.document.getElementById("headerMenu");
var header = top.document.getElementById("header");
var welcome = top.document.getElementById("welcome");
var hausGrau = top.document.getElementById("hausGrau");
var theIframe = top.document.getElementById("iFrames");
	  
function macheOrig() {
	var EnglishGrau = top.document.getElementById("EnglishGrau");
	var header = top.document.getElementById("header");
	var welcome = top.document.getElementById("welcome");
	var headerMenu = top.document.getElementById("headerMenu");
	var theIframe = top.document.getElementById("iFrames");
    header.style.backgroundImage = "url(pics/Name.gif)";
	headerMenu.style.display ="block";
	EnglishGrau.style.display ="none";
	welcome.style.display ="block";
	
}
    
	
function macheGrau() {
var EnglishGrau = top.document.getElementById("EnglishGrau");
	var header = top.document.getElementById("header");
	var welcome = top.document.getElementById("welcome");
	var headerMenu = top.document.getElementById("headerMenu");
	var theIframe = top.document.getElementById("iFrames");
    header.style.backgroundImage = "url(pics/Name_grau.gif)";
	headerMenu.style.display ="none";
	welcome.style.display ="none";
	EnglishGrau.style.display ="none";
}

function HausBG() {
var welcome = top.document.getElementById("welcome");
	var EnglishGrau = top.document.getElementById("EnglishGrau");
	var hausGrau = top.document.getElementById("hausGrau");
	var theIframe = top.document.getElementById("iFrames");
	hausGrau.style.display ="block";
	EnglishGrau.style.display ="none";
	welcome.style.display ="none";
}
	
function BGWeiss() {
    var EnglishGrau = top.document.getElementById("EnglishGrau");
	var header = top.document.getElementById("header");
	var headerMenu = top.document.getElementById("headerMenu");
	var welcome = top.document.getElementById("welcome");
	var hausGrau = top.document.getElementById("hausGrau");
	var theIframe = top.document.getElementById("iFrames");
	hausGrau.style.display ="none";
	EnglishGrau.style.display ="none";
	welcome.style.display ="none";
	headerMenu.style.display ="none";
	header.style.backgroundImage = "url(pics/Name_grau.gif)";
	
}

function welcomeOff(){
var welcome = top.document.getElementById("welcome");
welcome.style.display ="none";
}

function BGEnglish() {
	var header = top.document.getElementById("header");
	var headerMenu = top.document.getElementById("headerMenu");
	var welcome = top.document.getElementById("welcome");
	var EnglishGrau = top.document.getElementById("EnglishGrau");
	var theIframe = top.document.getElementById("iFrames");
	EnglishGrau.style.display ="block";
	theIframe.style.display ="block";
	welcome.style.display ="none";
	headerMenu.style.display ="none";
	header.style.backgroundImage = "url(pics/Name_grau.gif)";
}