bild = new Object();

bild.nav1=new Image();
bild.nav1.src="/static/images/nav-start-systhe.jpg";
bild.nav1a=new Image();
bild.nav1a.src="/static/images/nav-start-systhe-ov.jpg";

bild.nav2=new Image();
bild.nav2.src="/static/images/nav-start-trauma.jpg";
bild.nav2a=new Image();
bild.nav2a.src="/static/images/nav-start-trauma-ov.jpg";

bild.nav3=new Image();
bild.nav3.src="/static/images/nav-start-weiter.jpg";
bild.nav3a=new Image();
bild.nav3a.src="/static/images/nav-start-weiter-ov.jpg";

bild.nav4=new Image();
bild.nav4.src="/static/images/nav-start-super.jpg";
bild.nav4a=new Image();
bild.nav4a.src="/static/images/nav-start-super-ov.jpg";

bild.navc1=new Image();
bild.navc1.src="/static/images/nav-systhe.jpg";
bild.navc1a=new Image();
bild.navc1a.src="/static/images/nav-systhe-ov.jpg";

bild.navc2=new Image();
bild.navc2.src="/static/images/nav-trauma.jpg";
bild.navc2a=new Image();
bild.navc2a.src="/static/images/nav-trauma-ov.jpg";

bild.navc3=new Image();
bild.navc3.src="/static/images/nav-weiter.jpg";
bild.navc3a=new Image();
bild.navc3a.src="/static/images/nav-weiter-ov.jpg";

bild.navc4=new Image();
bild.navc4.src="/static/images/nav-super.jpg";
bild.navc4a=new Image();
bild.navc4a.src="/static/images/nav-super-ov.jpg";
		
function changenav(act,call)
{
		call.src=eval("bild."+act+".src");
}