var introbilder = new Array("img/slides/11.jpg", "img/slides/12.jpg", "img/slides/13.jpg", "img/slides/14.jpg", "img/slides/15.jpg", "img/slides/16.jpg", "img/slides/17.jpg", "img/slides/18.jpg", "img/slides/19.jpg", "img/slides/20.jpg", "img/slides/21.jpg", "img/slides/22.jpg")
function preload () {
	var img
	for (var i=0; i<preload.arguments.length; i++) {
		img = new Image();
		img.src = preload.arguments[i];
		introbiler[i] = img;
		}
	}

if (document.images)
var bilder = new Array("img/slides/11.jpg", "img/slides/12.jpg", "img/slides/13.jpg", "img/slides/14.jpg", "img/slides/15.jpg", "img/slides/16.jpg", "img/slides/17.jpg", "img/slides/18.jpg", "img/slides/19.jpg", "img/slides/20.jpg", "img/slides/21.jpg", "img/slides/22.jpg")
var naechstesBild = 0 //Array-Index der nächsten Bildes
var verzoegerung = 4000 //Verzögerung in Millisekunden

function animation(){
   document.slideshow.src = introbilder[naechstesBild];
   naechstesBild++;
   if (naechstesBild==bilder.length)
      naechstesBild = 0;
   setTimeout("animation()", verzoegerung);
}
// JavaScript Document

var n4, ie, w3c;

function init() {
	n4 = document.layers;
	ie = document.all;
	w3c = document.documentElement;
	}

function showLayer(Name) { 
    if (ie) { 
	document.all[Name].style.visibility = 'visible';
	} else {
		document.getElementById([Name]).style.visibility = 'visible';
		} 
}

function hideLayer(Name) { 
    if (ie) { 
	document.all[Name].style.visibility = 'hidden';
	} else  {
		document.getElementById([Name]).style.visibility = 'hidden';
		} 
}	

function formFocus() {
	document.kontaktform.name.focus();
}

		function checkForm() {
			if (document.kontaktform.Nachname.value == "") {
				if (ie) { 
				document.all.warn_name.style.visibility = 'visible';
				} else {
					document.getElementById("warn_name").style.visibility = 'visible';
					} 
				document.kontaktform.Nachname.focus();
				return false;
			}
			if (document.kontaktform.Postadresse.value == "") {
				if (ie) { 
				document.all.warn_address.style.visibility = 'visible';
				} else {
					document.getElementById("warn_address").style.visibility = 'visible';
					} 
				document.kontaktform.Postadresse.focus();
				return false;
			}
			if (document.kontaktform.PLZ.value == "") {
				if (ie) { 
				document.all.warn_ort.style.visibility = 'visible';
				} else {
					document.getElementById("warn_ort").style.visibility = 'visible';
					} 
				document.kontaktform.PLZ.focus();
				return false;
			}
			if (document.kontaktform.Ort.value == "") {
				if (ie) { 
				document.all.warn_ort.style.visibility = 'visible';
				} else {
					document.getElementById("warn_ort").style.visibility = 'visible';
					} 
				document.kontaktform.Ort.focus();
				return false;
			}
			if (document.kontaktform.Mitteilung.value == "") {
				if (ie) { 
				document.all.warn_message.style.visibility = 'visible';
				} else {
					document.getElementById("warn_message").style.visibility = 'visible';
					} 
				document.kontaktform.Mitteilung.focus();
				return false;
			}
			if (document.kontaktform.Email.value == "") {
				if (ie) { 
				document.all.warn_mail.style.visibility = 'visible';
				} else {
					document.getElementById("warn_mail").style.visibility = 'visible';
					} 
				document.kontaktform.Email.focus();
				return false;
			}
				//Kommt ein "@" vor?
				vabsender = document.kontaktform.Email.value;
				if (vabsender.indexOf("@") == -1 || vabsender.indexOf("@") == 0) {
				if (ie) { 
				document.all.warn_mail.style.visibility = 'visible';
				} else {
					document.getElementById("warn_mail").style.visibility = 'visible';
					} 
					document.kontaktform.Email.focus();
					return false;
					}
				//Kommt ein Punkt nach dem "@" vor?
				vabsenderParts = vabsender.split("@");
				if (vabsenderParts[1].indexOf(".") == -1) {
				if (ie) { 
				document.all.warn_mail.style.visibility = 'visible';
				} else {
					document.getElementById("warn_mail").style.visibility = 'visible';
					} 
					document.kontaktform.Email.focus();
					return false;
					}
				//Nach dem Punkt mind. 2 Zeichen?
				vabsenderDomain = vabsenderParts[1].split(".");
				if (vabsenderDomain[1].length < 2) {
				if (ie) { 
				document.all.warn_mail.style.visibility = 'visible';
				} else {
					document.getElementById("warn_mail").style.visibility = 'visible';
					} 
					document.kontaktform.Email.focus();
					return false;
					}
					return true;
		}