if (document.images) {
h_aboutoff = new Image
h_staffoff = new Image
h_servicesoff = new Image
h_projectsoff = new Image
h_newsoff = new Image
h_contactoff = new Image
s_aboutoff = new Image
s_staffoff = new Image
s_servicesoff = new Image
s_projectsoff = new Image
s_newsoff = new Image
s_contactoff = new Image
signupoff = new Image
visitoff = new Image

h_abouton = new Image
h_staffon = new Image
h_serviceson = new Image
h_projectson = new Image
h_newson = new Image
h_contacton = new Image
s_abouton = new Image
s_staffon = new Image
s_serviceson = new Image
s_projectson = new Image
s_newson = new Image
s_contacton = new Image
signupon = new Image
visiton = new Image

h_aboutoff.src = "images/nav_h_about.gif"
h_staffoff.src = "images/nav_h_staff.gif"
h_servicesoff.src = "images/nav_h_services.gif"
h_projectsoff.src = "images/nav_h_projects.gif"
h_newsoff.src = "images/nav_h_news.gif"
h_contactoff.src = "images/nav_h_contact.gif"
s_aboutoff.src = "images/nav_s_about.gif"
s_staffoff.src = "images/nav_s_staff.gif"
s_servicesoff.src = "images/nav_s_services.gif"
s_projectsoff.src = "images/nav_s_projects.gif"
s_newsoff.src = "images/nav_s_news.gif"
s_contactoff.src = "images/nav_s_contact.gif"
signupoff.src = "images/signup.gif"
visitoff.src = "images/visit.gif"

h_abouton.src = "images/nav_h_about_r.gif"
h_staffon.src = "images/nav_h_staff_r.gif"
h_serviceson.src = "images/nav_h_services_r.gif"
h_projectson.src = "images/nav_h_projects_r.gif"
h_newson.src = "images/nav_h_news_r.gif"
h_contacton.src = "images/nav_h_contact_r.gif"
s_abouton.src = "images/nav_s_about_r.gif"
s_staffon.src = "images/nav_s_staff_r.gif"
s_serviceson.src = "images/nav_s_services_r.gif"
s_projectson.src = "images/nav_s_projects_r.gif"
s_newson.src = "images/nav_s_news_r.gif"
s_contacton.src = "images/nav_s_contact_r.gif"
signupon.src = "images/signup_r.gif"
visiton.src = "images/visit_r.gif"

}
else {

h_aboutoff =  " "
h_staffoff =  " "
h_servicesoff =  " "
h_projectsoff =  " "
h_newsoff =  " "
h_contactoff =  " "
s_aboutoff =  " "
s_staffoff =  " "
s_servicesoff =  " "
s_projectsoff =  " "
s_newsoff =  " "
s_contactoff =  " "
signupoff =  " "
visitoff =  " "

h_abouton =  " "
h_staffon =  " "
h_serviceson =  " "
h_projectson =  " "
h_newson =  " "
h_contacton =  " "
s_abouton =  " "
s_staffon =  " "
s_serviceson =  " "
s_projectson =  " "
s_newson =  " "
s_contacton =  " "
signup =  " "
visit =  " "

document.h_about =  " "
document.h_staff =  " "
document.h_services =  " "
document.h_projects =  " "
document.h_news =  " "
document.h_contact =  " "
document.s_about =  " "
document.s_staff =  " "
document.s_services =  " "
document.s_projects =  " "
document.s_news =  " "
document.s_contact =  " "
document.signup =  " "
document.visit =  " "

}