var homepage = newImage('assets/images/nav/nav_home.gif');
var homepage_over = newImage('assets/images/nav/nav_home_over.gif');
var about = newImage('assets/images/nav/nav_about.gif');
var about_over = newImage('assets/images/nav/nav_about_over.gif');
var services = newImage('assets/images/nav/nav_services.gif');
var services_over = newImage('assets/images/nav/nav_services_over.gif');
var community = newImage('assets/images/nav/nav_community.gif');
var community_over = newImage('assets/images/nav/nav_community_over.gif');
var contact = newImage('assets/images/nav/nav_contact.gif');
var contact_over = newImage('assets/images/nav/nav_contact_over.gif');
var subnav = newImage('assets/images/subnav_bg_tile.gif');
var subnav_over = newImage('assets/images/subnav_bg_tile_over.gif');