nav_our_off = new Image();
nav_our_off.src = "graphics/nav_our.gif";

nav_our_on = new Image();
nav_our_on.src = "graphics/nav_our_o.gif";

nav_what_off = new Image();
nav_what_off.src = "graphics/nav_what.gif";

nav_what_on = new Image();
nav_what_on.src = "graphics/nav_what_o.gif";

nav_clients_off = new Image();
nav_clients_off.src = "graphics/nav_clients.gif";

nav_clients_on = new Image();
nav_clients_on.src = "graphics/nav_clients_o.gif";

nav_products_off = new Image();
nav_products_off.src = "graphics/nav_products.gif";

nav_products_on = new Image();
nav_products_on.src = "graphics/nav_products_o.gif";

nav_carriers_off = new Image();
nav_carriers_off.src = "graphics/nav_carriers.gif";

nav_carriers_on = new Image();
nav_carriers_on.src = "graphics/nav_carriers_o.gif";

nav_selman_off = new Image();
nav_selman_off.src = "graphics/nav_selman.gif";

nav_selman_on = new Image();
nav_selman_on.src = "graphics/nav_selman_o.gif";

nav_contact_off = new Image();
nav_contact_off.src = "graphics/nav_contact.gif";

nav_contact_on = new Image();
nav_contact_on.src = "graphics/nav_contact_o.gif";

function navChange(button,mode) {
	document[button].src = eval("nav_" + button + "_" + mode + ".src");
}