if (document.images) { 
        b1off = new Image();  b1off.src="/images/nav/home_a.gif";
        b1over = new Image(); b1over.src="/images/nav/home_b.gif";
        b1on = new Image();   b1on.src="/images/nav/home_c.gif";
        b2off = new Image();  b2off.src="/images/nav/wir_a.gif";
        b2over = new Image(); b2over.src="/images/nav/wir_b.gif";
        b2on = new Image();   b2on.src="/images/nav/wir_c.gif";
        b3off = new Image();  b3off.src="/images/nav/musik_a.gif";
        b3over = new Image(); b3over.src="/images/nav/musik_b.gif";
        b3on = new Image();   b3on.src="/images/nav/musik_c.gif";
        b4off = new Image();  b4off.src="/images/nav/live_a.gif";
        b4over = new Image(); b4over.src="/images/nav/live_b.gif";
        b4on = new Image();   b4on.src="/images/nav/live_c.gif";
        b5off = new Image();  b5off.src="/images/nav/gb_a.gif";
        b5over = new Image(); b5over.src="/images/nav/gb_b.gif";
        b5on = new Image();   b5on.src="/images/nav/gb_c.gif";
        b6off = new Image();  b6off.src="/images/nav/kontakt_a.gif";
        b6over = new Image(); b6over.src="/images/nav/kontakt_b.gif";
        b6on = new Image();   b6on.src="/images/nav/kontakt_c.gif";
        b7off = new Image();  b7off.src="/images/nav/shop_a.gif";
        b7over = new Image(); b7over.src="/images/nav/shop_b.gif";
        b7on = new Image();   b7on.src="/images/nav/shop_c.gif";
        b8off = new Image();  b8off.src="/images/nav/presse_a.gif";
        b8over = new Image(); b8over.src="/images/nav/presse_b.gif";
        b8on = new Image();   b8on.src="/images/nav/presse_c.gif";
	}
	
function change(num,func) {
		if(func == 2) {
			document.images["b"+num].src = eval("b"+num+"on.src");
			}
        if(func == 1) {
			document.images["b"+num].src = eval("b"+num+"over.src");
			}
		if(func == 0) {
			document.images["b"+num].src = eval("b"+num+"off.src");
			}
		}