function load() {
	if(document.images){
	   button1 = new Image();  
	   button1.src = "img/navi1_hi.gif";
	   button2 = new Image();  
	   button2.src = "img/navi2_hi.gif";
	   button3 = new Image();  
	   button3.src = "img/navi3_hi.gif";
	   button4 = new Image();  
	   button4.src = "img/navi4_hi.gif";
	   button5 = new Image();  
	   button5.src = "img/navi5_hi.gif";
	   button6 = new Image();  
	   button6.src = "img/navi6_hi.gif";
	   button7 = new Image();  
	   button7.src = "img/navi7_hi.gif";

	   
	   akm11 = new Image();  
	   akm11.src = "img/akm1_1_hi.gif";
	   akm12 = new Image();  
	   akm12.src = "img/akm1_2_hi.gif";
	   akm13 = new Image();  
	   akm13.src = "img/akm1_3_hi.gif";	   

	   akm21 = new Image();  
	   akm21.src = "img/akm2_1_hi.gif";	   
	   akm22 = new Image();  
	   akm22.src = "img/akm2_2_hi.gif";	   	  

	   
	   akm41 = new Image();  
	   akm41.src = "img/akm4_1_hi.gif";
	   akm42 = new Image();  
	   akm42.src = "img/akm4_2_hi.gif";
	   akm43 = new Image();  
	   akm43.src = "img/akm4_3_hi.gif";	   
	   akm44 = new Image();  
	   akm44.src = "img/akm4_4_hi.gif";	   
	   akm45 = new Image();  
	   akm45.src = "img/akm4_5_hi.gif";	   
	   akm46 = new Image();  
	   akm46.src = "img/akm4_6_hi.gif";
	   
	   akm61 = new Image();  
	   akm61.src = "img/akm6_1_hi.gif";


	   akm71 = new Image();  
	   akm71.src = "img/akm7_1_hi.gif";
  
 	}
} 

/////////////////////////////////////////////////////

function aktualisiere(anzahl_hauptlinks,hauptlink_nr,unterlink_nr,anzahl_unterlinks,layer_name){

if(document.images){


	
	// Name des Unterlinks
	var unterlink_name = layer_name + "_" + unterlink_nr;
	var hauptlink_name = "navi" + hauptlink_nr;

// fuer Ausklappmenue

	var openlayers = 'none';

	window.onerror = null;

	if (navigator.appName == "Netscape") {
		if(parseFloat(navigator.appVersion) >= 5) { // Firefox
          layerRef="parent.frames[0].document.getElementById";
          styleSwitch=".style"; 
		} else { // Netscape
          layerStyleRef="layer.";
          layerRef="parent.frames[0].document.layers";
          styleSwitch="";
		}
	}else{ // IE
        layerStyleRef="layer.style.";
        layerRef="parent.frames[0].document.all";
        styleSwitch=".style";
	}


// alle AKM verschwinden lassen
	if (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5) {  // Firefox
	  eval(layerRef+'("akm1")'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'("akm2")'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'("akm4")'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'("akm6")'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
	} else { // IE + Netscape
	  eval(layerRef+'["akm1"]'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'["akm2"]'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'["akm4"]'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'["akm6"]'+styleSwitch+'.visibility="hidden"');
	  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
	}

	openlayers = 'none';


// alle Unterbuttons im AKM auf _lo setzen


	// alle ausser den angeklickten auf _lo setzen
				
	for(x=1; x<anzahl_unterlinks+1; x++){
			if(x!=unterlink_nr){
				// Name des Unterlinks zusammenbauen
				var name = "akm" + hauptlink_nr + "_" + x;
				// auf _lo setzen
						
				// fuer Netscape
				if(navigator.appName == "Netscape" && parseFloat(navigator.appVersion) < 5){
					var unavi = parent.frames[0].document.layers[layer_name].document.images[name];
				}
				// fuer IE + Firefox
				else{
					var unavi = parent.frames[0].document.images[name];
				}
    		  		unavi.src = "img/" + layer_name + "_" + x + "_lo.gif";				
					
			}
	}					



	
// aktives AKM anzeigen

// fuer Firefox
if (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5) { 
  eval(layerRef+'("'+layer_name+'")'+styleSwitch+'.visibility="visible"');  
} 
// fuer IE + Netscape
else { 
  eval(layerRef+'["'+layer_name+'"]'+styleSwitch+'.visibility="visible"');
}

openlayers = layer_name;


// alle Hauptlinks auf low setzen
	for(x=1; x<anzahl_hauptlinks+1; x++){
		parent.frames[0].document.images[x].src="img/navi"+x+"_lo.gif";
	}  

// aktiven Haupt- und Unterlink auf high setzen
	var navi = parent.frames[0].document.images[hauptlink_name];
	navi.src = "img/" + hauptlink_name + "_hi.gif";
	// fuer Netscape
	if((navigator.appName == "Netscape")&&(unterlink_nr!=0)&&parseFloat(navigator.appVersion) < 5){	
		var unavi = parent.frames[0].document.layers[layer_name].document.images[unterlink_name];
		unavi.src = "img/" + layer_name + "_" + unterlink_nr + "_hi.gif";
	}
	// fuer IE + Firefox
	else{
		if(unterlink_nr!=0){
			var unavi = parent.frames[0].document.images[unterlink_name];
			unavi.src = "img/" + layer_name + "_" + unterlink_nr + "_hi.gif";
		}
	}
}
}



// bei Aufruf der Startseite, Sitemap, Impressum (Navi unten)
// alle Buttons auf low setzen
function start(anzahl_hauptlinks){
	if(document.images){
// fuer Ausklappmenue

		var openlayers = 'none';

		window.onerror = null;

	    if (navigator.appName == "Netscape") {
		  if(parseFloat(navigator.appVersion) >= 5) { // Firefox
            layerRef="parent.frames[0].document.getElementById";
            styleSwitch=".style"; 
		  } else { // Netscape
            layerStyleRef="layer.";
            layerRef="parent.frames[0].document.layers";
            styleSwitch="";
		  }
	    } else { // IE
          layerStyleRef="layer.style.";
          layerRef="parent.frames[0].document.all";
          styleSwitch=".style";
	    }
		

// alle AKM verschwinden lassen
	    if (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5) {  // Firefox
	      eval(layerRef+'("akm1")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm2")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm4")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm6")'+styleSwitch+'.visibility="hidden"');	
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
	    } else { // IE + Netscape
	      eval(layerRef+'["akm1"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm2"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm4"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm6"]'+styleSwitch+'.visibility="hidden"');
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
		}

		openlayers = 'none';

// alle Hauptlinks auf low setzen
		for(x=1; x<anzahl_hauptlinks+1; x++){
			parent.frames[0].document.images[x].src="img/navi"+x+"_lo.gif";
		} 		

	}
}


// bei Aufruf der der Downloadseite
// alle Buttons auf low setzen
function startdownload(anzahl_hauptlinks){
	if(document.images){
// fuer Ausklappmenue

		var openlayers = 'none';

		window.onerror = null;

	    if (navigator.appName == "Netscape") {
		  if(parseFloat(navigator.appVersion) >= 5) { // Firefox
            layerRef="parent.frames[0].document.getElementById";
            styleSwitch=".style"; 
		  } else { // Netscape
            layerStyleRef="layer.";
            layerRef="parent.frames[0].document.layers";
            styleSwitch="";
		  }
	    } else { // IE
          layerStyleRef="layer.style.";
          layerRef="parent.frames[0].document.all";
          styleSwitch=".style";
	    }

// alle AKM verschwinden lassen
	    if (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5) {  // Firefox
	      eval(layerRef+'("akm1")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm2")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm4")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm6")'+styleSwitch+'.visibility="hidden"');
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
	    } else { // IE + Netscape
	      eval(layerRef+'["akm1"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm2"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm4"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm6"]'+styleSwitch+'.visibility="hidden"');
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
		}

		openlayers = 'none';

// alle Hauptlinks auf low setzen
		for(x=1; x<anzahl_hauptlinks+1; x++){
			parent.frames[0].document.images[x].src="../img/navi"+x+"_lo.gif";
		} 		

	}
}


// bei Aufruf einer Seite ohne AKM (Kunden)
// alle Buttons auf low setzen
function ohneakm(anzahl_hauptlinks,hauptlink_name){
	if(document.images){
// fuer Ausklappmenue

		var openlayers = 'none';

		window.onerror = null;

	    if (navigator.appName == "Netscape") {
		  if(parseFloat(navigator.appVersion) >= 5) { // Firefox
            layerRef="parent.frames[0].document.getElementById";
            styleSwitch=".style"; 
		  } else { // Netscape
            layerStyleRef="layer.";
            layerRef="parent.frames[0].document.layers";
            styleSwitch="";
		  }
	    } else { // IE
          layerStyleRef="layer.style.";
          layerRef="parent.frames[0].document.all";
          styleSwitch=".style";
	    }


// alle AKM verschwinden lassen
	    if (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5) {  // Firefox
	      eval(layerRef+'("akm1")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm2")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm4")'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'("akm6")'+styleSwitch+'.visibility="hidden"');
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
	    } else { // IE + Netscape
	      eval(layerRef+'["akm1"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm2"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm4"]'+styleSwitch+'.visibility="hidden"');
	      eval(layerRef+'["akm6"]'+styleSwitch+'.visibility="hidden"');
		  eval(layerRef+'("akm7")'+styleSwitch+'.visibility="hidden"');
		}

		openlayers = 'none';

// alle Hauptlinks auf low setzen
		for(x=1; x<anzahl_hauptlinks+1; x++){
			parent.frames[0].document.images[x].src="img/navi"+x+"_lo.gif";
		} 		
		
// aktiven Hauptlink auf high setzen	
		var navi = parent.frames[0].document.images[hauptlink_name];
		navi.src = "img/" + hauptlink_name + "_hi.gif";

	}
}