nav_galleries = new Image();
nav_galleries.src = "images/nav_galleries_on.gif";

nav_before = new Image();
nav_before.src = "images/nav_before_on.gif";

nav_showcase = new Image();
nav_showcase.src = "images/nav_showcase_on.gif";

nav_charity = new Image();
nav_charity.src = "images/nav_charity_on.gif";

nav_testimonials = new Image();
nav_testimonials.src = "images/nav_testimonials_on.gif";

nav_contact = new Image();
nav_contact.src = "images/nav_contact_on.gif";