//Navigation Startseite	
	function showStart() {
		document.getElementById("startNavigation").style.display = "";
		document.getElementById("startNavigation1").style.display = "none";
		document.getElementById("startNavigation2").style.display = "none";
		document.getElementById("startNavigation3").style.display = "none";
		document.getElementById("startNavigation4").style.display = "none";
	}
	
	function showAct1() {
		document.getElementById("startNavigation1").style.display = "";
		document.getElementById("startNavigation").style.display = "none";
		document.getElementById("startNavigation2").style.display = "none";
		document.getElementById("startNavigation3").style.display = "none";
		document.getElementById("startNavigation4").style.display = "none";
	}
	
	function showAct2() {
		document.getElementById("startNavigation2").style.display = "";
		document.getElementById("startNavigation").style.display = "none";
		document.getElementById("startNavigation1").style.display = "none";
		document.getElementById("startNavigation3").style.display = "none";
		document.getElementById("startNavigation4").style.display = "none";
	}
	
	function showAct3() {
		document.getElementById("startNavigation3").style.display = "";
		document.getElementById("startNavigation").style.display = "none";
		document.getElementById("startNavigation1").style.display = "none";
		document.getElementById("startNavigation2").style.display = "none";
		document.getElementById("startNavigation4").style.display = "none";
	}
	
	function showAct4() {
		document.getElementById("startNavigation4").style.display = "";
		document.getElementById("startNavigation").style.display = "none";
		document.getElementById("startNavigation1").style.display = "none";
		document.getElementById("startNavigation2").style.display = "none";
		document.getElementById("startNavigation3").style.display = "none";
	}
	
	//Navigation Hauptseite
	function showMain() {
		document.getElementById("mainNav").style.display = "";
		document.getElementById("mainNav1").style.display = "none";
		document.getElementById("mainNav2").style.display = "none";
		document.getElementById("mainNav3").style.display = "none";
		document.getElementById("mainNav4").style.display = "none";
	}
	
	function showMainAct1() {
		document.getElementById("mainNav").style.display = "none";
		document.getElementById("mainNav1").style.display = "";
		document.getElementById("mainNav2").style.display = "none";
		document.getElementById("mainNav3").style.display = "none";
		document.getElementById("mainNav4").style.display = "none";
	}
	
	function showMainAct2() {
		document.getElementById("mainNav").style.display = "none";
		document.getElementById("mainNav1").style.display = "none";
		document.getElementById("mainNav2").style.display = "";
		document.getElementById("mainNav3").style.display = "none";
		document.getElementById("mainNav4").style.display = "none";
	}
	
	function showMainAct3() {
		document.getElementById("mainNav").style.display = "none";
		document.getElementById("mainNav1").style.display = "none";
		document.getElementById("mainNav2").style.display = "none";
		document.getElementById("mainNav3").style.display = "";
		document.getElementById("mainNav4").style.display = "none";
	}
	
	function showMainAct4() {
		document.getElementById("mainNav").style.display = "none";
		document.getElementById("mainNav1").style.display = "none";
		document.getElementById("mainNav2").style.display = "none";
		document.getElementById("mainNav3").style.display = "none";
		document.getElementById("mainNav4").style.display = "";
	}	
	

	function randAnsicht() {
		var ansicht = Math.ceil(Math.random() * 1000) % 2 + 1;
		
		document.getElementById("bildAnsichten").src = "images/ansichten0" + ansicht + ".jpg";
	}
	
	function checkInput()
	{
		var checker = "";

		if (document.newsletterform.nachname.value == "" || document.newsletterform.vorname.value == "" || document.newsletterform.email.value == "") checker = "Bitte füllen Sie die Felder Vorname, Nachname und EMail aus.\n";
			
		if (checker == "") document.newsletterform.submit();
		else alert(checker);
	}
	
	function FensterOeffnen (Pos,Max,ID,kat)
	{
	  Fenster1 = window.open("popup.php?pos="+Pos+"&max="+Max+"&id="+ID+"&katid="+kat, "Bildergalerie", "width=600,height=445,left=100,top=100,scrollbars=no,resizable=no");
	  Fenster1.focus();
	}