if (document.images) {
homeoff=new Image();
homeoff.src= "images/menus/internal/homeoff.gif";
homeon=new Image();
homeon.src= "images/menus/internal/homeon.gif";
menusoff=new Image();
menusoff.src= "images/menus/internal/menusoff.gif";
menuson=new Image();
menuson.src= "images/menus/internal/menuson.gif";
howitworksoff=new Image();
howitworksoff.src= "images/menus/internal/howitworksoff.gif";
howitworkson=new Image();
howitworkson.src= "images/menus/internal/howitworkson.gif";
calendaroff=new Image();
calendaroff.src= "images/menus/internal/calendaroff.gif";
calendaron=new Image();
calendaron.src= "images/menus/internal/calendaron.gif";
giftcertificatesoff=new Image();
giftcertificatesoff.src= "images/menus/internal/giftcertificatesoff.gif";
giftcertificateson=new Image();
giftcertificateson.src= "images/menus/internal/giftcertificateson.gif";
directionsoff=new Image();
directionsoff.src= "images/menus/internal/directionsoff.gif";
directionson=new Image();
directionson.src= "images/menus/internal/directionson.gif";
aboutoff=new Image();
aboutoff.src= "images/menus/internal/aboutoff.gif";
abouton=new Image();
abouton.src= "images/menus/internal/abouton.gif";
}

function imageOn (imagename){
  document[imagename].src=eval(imagename+"on.src");
 }
function imageOff (imagename){
  document[imagename].src=eval(imagename+"off.src");
 }