function mySwap(s) 
{ 
if ( s == 0 )document.images.home.src = "images/menu/home.gif"; 
if ( s == 1 )document.images.home.src = "images/menu/home_over.gif"; 

if ( s == 2 )document.images.welcome.src = "images/menu/welcome.gif"; 
if ( s == 3 )document.images.welcome.src = "images/menu/welcome_over.gif"; 

if ( s == 4 )document.images.oursch.src = "images/menu/about.gif"; 
if ( s == 5 )document.images.oursch.src = "images/menu/about_over.gif"; 

if ( s == 6 )document.images.parents.src = "images/menu/parents.gif"; 
if ( s == 7 )document.images.parents.src = "images/menu/parents_over.gif"; 

if ( s == 8 )document.images.gallery.src = "images/menu/gallery.gif"; 
if ( s == 9 )document.images.gallery.src = "images/menu/gallery_over.gif"; 

if ( s == 10 )document.images.letters.src = "images/menu/letters.gif"; 
if ( s == 11 )document.images.letters.src = "images/menu/letters_over.gif"; 

if ( s == 12 )document.images.schtour.src = "images/menu/tour.gif"; 
if ( s == 13 )document.images.schtour.src = "images/menu/tour_over.gif"; 

if ( s == 14 )document.images.classpages.src = "images/menu/classes.gif"; 
if ( s == 15 )document.images.classpages.src = "images/menu/classes_over.gif"; 

if ( s == 16 )document.images.schclubs.src = "images/menu/clubs.gif"; 
if ( s == 17 )document.images.schclubs.src = "images/menu/clubs_over.gif"; 

if ( s == 18 )document.images.curriculum.src = "images/menu/curriculum.gif"; 
if ( s == 19 )document.images.curriculum.src = "images/menu/curriculum_over.gif"; 

if ( s == 20 )document.images.kidszone.src = "images/menu/childrens_zone.gif"; 
if ( s == 21 )document.images.kidszone.src = "images/menu/childrens_zone_over.gif"; 

if ( s == 22 )document.images.staffroom.src = "images/menu/staff_room.gif"; 
if ( s == 23 )document.images.staffroom.src = "images/menu/staff_room_over.gif"; 

if ( s == 24 )document.images.schoolcouncil.src = "images/menu/schoolcouncil.gif"; 
if ( s == 25 )document.images.schoolcouncil.src = "images/menu/schoolcouncil_over.gif"; 

if ( s == 26 )document.images.breakfast.src = "images/menu/breakfast.gif"; 
if ( s == 27 )document.images.breakfast.src = "images/menu/breakfast_over.gif"; 
}