#logo-vierkant{
             background: url(/images/layout/logo-congres.jpg) 0 0 no-repeat; 
 }

#logo-vierkant-tekst{
             background: url(/images/layout/logo-vlak-tekst-congres.gif) 0 0 no-repeat; 
}

#submenu{
       background: url(/images/layout/submenu-vlak-congres.jpg) 0 0 no-repeat;
}

#adres {
       background: url(/images/layout/adres-congres.gif) 0 0 no-repeat;
}