but1=new Image ();
but1.src="nav/nav_home.gif";
but2=new Image ();
but2.src="nav/nav_home1.gif";

but3=new Image ();
but3.src="nav/nav_fraesen.gif";
but4=new Image ();
but4.src="nav/nav_fraesen1.gif";

but5=new Image ();
but5.src="nav/nav_raketen.gif";
but6=new Image ();
but6.src="nav/nav_raketen1.gif";

but7=new Image ();
but7.src="nav/nav_produkte.gif";
but8=new Image ();
but8.src="nav/nav_produkte1.gif";

but9=new Image ();
but9.src="nav/nav_gebraucht.gif";
but10=new Image ();
but10.src="nav/nav_gebraucht1.gif";

but11=new Image ();
but11.src="nav/nav_kontakt.gif";
but12=new Image ();
but12.src="nav/nav_kontakt1.gif";

//-------------------------------------------------------------

ico1=new Image ();
ico1.src="nav/ico_text.gif";
ico2=new Image ();
ico2.src="nav/ico_kontakt.gif";

ico3=new Image ();
ico3.src="nav/ico_text.gif";
ico4=new Image ();
ico4.src="nav/ico_sitemap.gif";

ico5=new Image ();
ico5.src="nav/ico_text.gif";
ico6=new Image ();
ico6.src="nav/ico_impressum.gif";

//-------------------------------------------------------------

function change(Bildnr,Bildobjekt)
{
window.document.images[Bildnr].src=Bildobjekt.src;
}