//transBG

var objMyImage = null;
function init() {
	objMyImage = new OpacityObject('window0','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window1','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window2','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window3','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window4','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window5','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('window6','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('gallery1','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('gallery2','trans');
	objMyImage.setBackground();
	
	objMyImage = new OpacityObject('gallery3','trans');
	objMyImage.setBackground();

}

//contentChanger

function switchd(div) {
	var option=['window0','window1','window2','window3','window4','window5','window6','mainBackgroundImage','gallery1','gallery2','gallery3'];

	for(var i=0; i<option.length; i++) {
		obj=document.getElementById(option[i]);
		obj.className=(option[i]==div) ? "visible" : "hidden";
	}
}

//subNavChanger

function sub(id, visibility) {
    obj = document.getElementsByTagName("div");
    obj[id].style.visibility = visibility;
}

//centered popup

function NewWindow(mypage, myname, w, h, scroll) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
	win = window.open(mypage, myname, winprops)
	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

//Function zum Steuern des Popupfensters im Kontaktformular

Fensterzahl=0; //popup wurde noch nicht geöffnet
function fenster() //Funktion zum öffnen des popups
{
if(Fensterzahl>0) //wenn popup schon mal offen war
{
if(F1.closed==false) //und nicht geschlossen wurde
{
F1.focus() //Fokus aufs popup setzen
return true //Funktion beenden und Formular absenden
}
}
F1=open("","F1","width=400,height=300") //wenn popup geschlossen war, öffnen
F1.focus() //Fokus aufs popup
Fensterzahl=1 //Fensterzahl auf 1 setzen;zeigt das popup schon mal geöffnet war
return true //function beenden und Formular absenden
}


//Formcheck

function checkFields() {
missinginfo = "";

if (document.form.realname.value == "") {
missinginfo += "\n     -  Name";
}

if ((document.form.email.value == "") || (document.form.email.value.indexOf('@') == -1) || (document.form.email.value.indexOf('.') == -1)) {
missinginfo += "\n     -  eMail Addresse";
}

if(document.form.telefon.value == "") {
missinginfo += "\n     -  Telefon";
}

if(document.form.message.value == "") {
missinginfo += "\n     -  Nachricht";
}

if (missinginfo != "") {
missinginfo ="\n" +
"Bitte die entsprechenden Felder ausfüllen:\n" +
missinginfo + "\n_____________________________" +
"\nVielen Dank!";
alert(missinginfo);
return false;
}
else return true;
}

/*******randomStyleSwitch*******/

var CSSpages=new Array(
'/format/background1.css',
'/format/background2.css',
'/format/background3.css'
);
document.writeln('<link rel="stylesheet" type="text/css" href="' + CSSpages[Math.floor(Math.random()*(CSSpages.length))] + '">');