if (document.images) {
homeoff = new Image
aboutoff = new Image
booksoff = new Image
pressoff = new Image
whatoff = new Image
photosoff = new Image
contactoff = new Image
bookclubsoff = new Image
recipesoff = new Image

homeon = new Image
abouton = new Image
bookson = new Image
presson = new Image
whaton = new Image
photoson = new Image
contacton = new Image
bookclubson = new Image
recipeson = new Image

homeoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_home.gif"
aboutoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_about.gif"
booksoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_books.gif"
pressoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_press.gif"
whatoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_what.gif"
photosoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_photos.gif"
contactoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_contact.gif"
bookclubsoff.src = "http://www.janegreen.com/wp-content/themes/default/images/home_bookclubs.gif"
recipesoff.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_recipes.gif"

homeon.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_home_r.gif"
abouton.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_about_r.gif"
bookson.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_books_r.gif"
presson.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_press_r.gif"
whaton.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_what_r.gif"
photoson.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_photos_r.gif"
contacton.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_contact_r.gif"
bookclubson.src = "http://www.janegreen.com/wp-content/themes/default/images/home_bookclubs_r.gif"
recipeson.src = "http://www.janegreen.com/wp-content/themes/default/images/nav_recipes_r.gif"

}
else {

homeoff =  " "
aboutoff =  " "
booksoff =  " "
pressoff =  " "
whatoff =  " "
photosoff =  " "
contactoff =  " "
bookclubsoff =  " "
recipesoff =  " "

homeon =  " "
abouton =  " "
bookson =  " "
presson =  " "
whaton =  " "
photoson =  " "
contacton =  " "
bookclubson =  " "
recipeson =  " "

document.home =  " "
document.about =  " "
document.books =  " "
document.press =  " "
document.what =  " "
document.photos =  " "
document.contact =  " "
document.bookclubs =  " "
document.recipes =  " "

}