function fenster(file,name,breite,hoehe)
{
        parameter="width="+breite+
        ",height="+hoehe+
        ",left=0,top=0,resizable=no,status=no,scrollbars=yes,toolbar=no,location=no,menubar=no";
        window.open(file,name,parameter);
}


function change_img_nav(anzahl,number)
{
        for (i=1;i<anzahl*3;i=i+3)
        {
                parent.nav.document.images[i].src = "../gfxnav/button/button_blau.gif";
        }


        parent.nav.document.images[number].src = "../gfxnav/button/button_rot.gif";
}

function reset_nav(anzahl)
{
        for (i=1;i<anzahl*3;i=i+3)
        {
                parent.nav.document.images[i].src = "../gfxnav/button/button_blau.gif";
        }
}