function load(){
	if(document.images){
	   bild1 = new Image();  
	   bild1.src = "img/button1_lo.gif";
	   bild1b = new Image();  
	   bild1b.src = "img/button1_hi.gif";
	   bild2 = new Image();  
	   bild2.src = "img/button2_lo.gif";
	   bild2b = new Image();  
	   bild2b.src = "img/button2_hi.gif";
	   bild3 = new Image();  
	   bild3.src = "img/button3_lo.gif";
	   bild3b = new Image();  
	   bild3b.src = "img/button3_hi.gif";
	   bild4 = new Image();  
	   bild4.src = "img/offnav.gif";
	   bild4b = new Image();  
	   bild4b.src = "img/offnav.gif";
	   bild5 = new Image();  
	   bild5.src = "img/button5_lo.gif";
	   bild5b = new Image();  
	   bild5b.src = "img/button5_hi.gif";
	   bild6 = new Image();  
	   bild6.src = "img/button6_lo.gif";
	   bild6b = new Image();  
	   bild6b.src = "img/button6_hi.gif";
	}
}


function an(name) {
        if(document.images){
                document.images[name].src="../img/"+name+"_hi.gif";     
        }
}

function aus(name) {
        if(document.images){
                document.images[name].src="../img/"+name+"_lo.gif";
        }
}


function an2(name) {
        if(document.images){
                document.images[name].src="/img/"+name+"_hi.gif";     
        }
}

function aus2(name) {
        if(document.images){
                document.images[name].src="/img/"+name+"_lo.gif";
        }
}

// fuer index-Seite
function ani(name) {
        if(document.images){
                document.images[name].src="img/"+name+"_hi.gif";     
        }
}

function ausi(name) {
        if(document.images){
                document.images[name].src="img/"+name+"_lo.gif";
        }
}

function off() {
  document.images['button4'].src = "/img/offnav.gif";
  document.images['button4'].height = '1';
  document.images['button4'].alt = '';
  document.images['button4'].style.cursor = 'default';
  document.images['button1'].style.background = '#336699';
  document.images['button2'].style.background = '#336699';
  document.images['button3'].style.background = '#336699';
  document.images['button4'].style.background = '#336699';
  document.images['button5'].style.background = '#336699';
  document.images['button6'].style.background = '#336699';
}
window.setTimeout("off()", 10);