if (document.images) {
homeoff = new Image
aboutoff = new Image
servicesoff = new Image
samplesoff = new Image
orderoff = new Image
pressoff = new Image
contactoff = new Image

homeon = new Image
abouton = new Image
serviceson = new Image
sampleson = new Image
orderon = new Image
presson = new Image
contacton = new Image

homeoff.src = "images/nav_home.gif"
aboutoff.src = "images/nav_about.gif"
servicesoff.src = "images/nav_services.gif"
samplesoff.src = "images/nav_samples.gif"
orderoff.src = "images/nav_order.gif"
pressoff.src = "images/nav_press.gif"
contactoff.src = "images/nav_contact.gif"

homeon.src = "images/nav_home_r.gif"
abouton.src = "images/nav_about_r.gif"
serviceson.src = "images/nav_services_r.gif"
sampleson.src = "images/nav_samples_r.gif"
orderon.src = "images/nav_order_r.gif"
presson.src = "images/nav_press_r.gif"
contacton.src = "images/nav_contact_r.gif"

}
else {

homeoff =  " "
aboutoff =  " "
servicesoff =  " "
samplesoff =  " "
orderoff =  " "
pressoff =  " "
contactoff =  " "

homeon =  " "
abouton =  " "
serviceson =  " "
sampleson =  " "
orderon =  " "
presson =  " "
contacton =  " "


document.home =  " "
document.about =  " "
document.services =  " "
document.samples =  " "
document.order =  " "
document.press =  " "
document.contact =  " "


}