if (document.images) {
homeoff = new Image
productsoff = new Image
aboutoff = new Image
newsoff = new Image
careersoff = new Image
contactoff = new Image
ordersoff = new Image
teamoff = new Image
boardoff = new Image
introoff = new Image
howoff = new Image

homeon = new Image
productson = new Image
abouton = new Image
newson = new Image
careerson = new Image
contacton = new Image
orderson = new Image
teamon = new Image
boardon = new Image
introon = new Image
howon = new Image

homeoff.src = "images/nav_home.gif"
productsoff.src = "images/nav_products.gif"
aboutoff.src = "images/nav_about.gif"
newsoff.src = "images/nav_news.gif"
careersoff.src = "images/nav_careers.gif"
contactoff.src = "images/nav_contact.gif"
ordersoff.src = "images/nav_orders.gif"
teamoff.src = "images/snav_team.gif"
boardoff.src = "images/snav_board.gif"
introoff.src = "images/snav_intro.gif"
howoff.src = "images/snav_how.gif"

homeon.src = "images/nav_home_r.gif"
productson.src = "images/nav_products_r.gif"
abouton.src = "images/nav_about_r.gif"
newson.src = "images/nav_news_r.gif"
careerson.src = "images/nav_careers_r.gif"
contacton.src = "images/nav_contact_r.gif"
orderson.src = "images/nav_orders_r.gif"
teamon.src = "images/snav_team_r.gif"
boardon.src = "images/snav_board_r.gif"
introon.src = "images/snav_intro_r.gif"
howon.src = "images/snav_how_r.gif"

}
else {

homeoff =  " "
productsoff =  " "
aboutoff =  " "
newsoff =  " "
careersoff =  " "
contactoff =  " "
ordersoff =  " "
teamoff =  " "
boardoff =  " "
introoff =  " "
howoff =  " "

homeon =  " "
productson =  " "
abouton =  " "
newson =  " "
careerson =  " "
contacton =  " "
orderson =  " "
teamon =  " "
boardon =  " "
introon =  " "
howon =  " "

document.home =  " "
document.products =  " "
document.about =  " "
document.news =  " "
document.careers =  " "
document.contact =  " "
document.orders =  " "
document.team =  " "
document.board =  " "
document.intro =  " "
document.how =  " "

}