var akt_bild = '';
		
		home_no = new Image ();
		home_no.src = '../images/navi/home_no.gif';
		home_act = new Image ();
		home_act.src = '../images/navi/home_act.gif';
		
		produkte_no = new Image ();
		produkte_no.src = '../images/navi/produkte_no.gif';
		produkte_act = new Image ();
		produkte_act.src = '../images/navi/produkte_act.gif';
		
		download_no = new Image ();
		download_no.src = '../images/navi/download_no.gif';
		download_act = new Image ();
		download_act.src = '../images/navi/download_act.gif';
		
		hilfe_no = new Image ();
		hilfe_no.src = '../images/navi/hilfe_no.gif';
		hilfe_act = new Image ();
		hilfe_act.src = '../images/navi/hilfe_act.gif';
		
		status_no = new Image ();
		status_no.src = '../images/navi/status_no.gif';
		status_act = new Image ();
		status_act.src = '../images/navi/status_act.gif';
		
		download_knopf_no = new Image ();
		download_knopf_no.src = '../images/home/download_no.gif';
		download_knopf_act = new Image ();
		download_knopf_act.src = '../images/home/download_act.gif';
		
		function akt_bild_setzen (aktuelles_bild) {
			
			akt_bild = aktuelles_bild;
			
		}
		
		function bw (uid, bild) {
		
			if (akt_bild != uid)
			{
				document.getElementById(uid).src = bild.src;
			}
		}
		
		function alle_auf_standard () {
			
			akt_bild = '';
			
			var bilder = new Array('home','produkte','download','hilfe','status');
			
			for (i = 0; i < bilder.length; i++)
			{
				var testbild = bilder[i] + '_no';
				
				document.getElementById(bilder[i]).src = "../images/navi/" + bilder[i] + "_no.gif";
			}
		
		}
		
		function bild_pruefen() {
			if (akt_bild == '')
			{
				document.getElementById('home').src = home_act.src;
			}
		}