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.contact.src = "images/menu/contact.gif"; 
if ( s == 5 )document.images.contact.src = "images/menu/contact_over.gif"; 

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

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

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

if ( s == 12 )document.images.news.src = "images/menu/news.gif"; 
if ( s == 13 )document.images.news.src = "images/menu/news_over.gif"; 

if ( s == 14 )document.images.children.src = "images/menu/children.gif"; 
if ( s == 15 )document.images.children.src = "images/menu/children_over.gif"; 

if ( s == 16 )document.images.parents.src = "images/menu/parents.gif"; 
if ( s == 17 )document.images.parents.src = "images/menu/parents_over.gif"; 

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

}