if (document.images)
{
homenav = new Image;
homenav_roll = new Image;
philosophynav = new Image;
philosophynav_roll = new Image;
servicesnav = new Image;
servicesnav_roll = new Image;
productsnav = new Image;
productsnav_roll = new Image;
contactnav = new Image;
contactnav_roll = new Image;

homenav.src = "image/nav/home.gif";
homenav_roll.src = "image/nav/home_roll.gif";
philosophynav.src = "image/nav/philosophy.gif";
philosophynav_roll.src = "image/nav/philosophy_roll.gif";
servicesnav.src = "image/nav/services.gif";
servicesnav_roll.src = "image/nav/services_roll.gif";
productsnav.src = "image/nav/products.gif";
productsnav_roll.src = "image/nav/products_roll.gif";
contactnav.src = "image/nav/contact.gif";
contactnav_roll.src = "image/nav/contact_roll.gif";
}