if (document.images)
{
homenav = new Image;
homenav_roll = new Image;
aboutnav = new Image;
aboutnav_roll = new Image;
shippingnav = new Image;
shippingnav_roll = new Image;
chemistrynav = new Image;
chemistrynav_roll = new Image;
mailinglistnav = new Image;
mailinglistnav_roll = new Image;
contactnav = new Image;
contactnav_roll = new Image;
salenav = new Image;
salenav_roll = new Image;

homenav.src = "/images/martins/home.jpg";
homenav_roll.src = "/images/martins/home_roll.jpg";
aboutnav.src = "/images/martins/about.jpg";
aboutnav_roll.src = "/images/martins/about_roll.jpg";
shippingnav.src = "/images/martins/shipping.jpg";
shippingnav_roll.src = "images/martins/shipping_roll.jpg";
mailinglistnav.src = "/images/martins/mailinglist.jpg";
mailinglistnav_roll.src = "/images/martins/mailinglist_roll.jpg";
contactnav.src = "/images/martins/contact.jpg";
contactnav_roll.src = "/images/martins/contact_roll.jpg";
salenav.src = "/images/martins/sale.jpg";
salenav_roll.src = "/images/martins/sale_roll.jpg";
}