nav_home_off = new Image();
nav_home_off.src = "img/nav-home-off.gif";
nav_home_on = new Image();
nav_home_on.src = "img/nav-home-on.gif";

nav_about_off = new Image();
nav_about_off.src = "img/nav-about-off.gif";
nav_about_on = new Image();
nav_about_on.src = "img/nav-about-on.gif";

nav_procedures_off = new Image();
nav_procedures_off.src = "img/nav-procedures-off.gif";
nav_procedures_on = new Image();
nav_procedures_on.src = "img/nav-procedures-on.gif";

nav_newsletters_off = new Image();
nav_newsletters_off.src = "img/nav-newsletters-off.gif";
nav_newsletters_on = new Image();
nav_newsletters_on.src = "img/nav-newsletters-on.gif";

nav_testimonials_off = new Image();
nav_testimonials_off.src = "img/nav-testimonials-off.gif";
nav_testimonials_on = new Image();
nav_testimonials_on.src = "img/nav-testimonials-on.gif";

nav_promotions_off = new Image();
nav_promotions_off.src = "img/nav-promotions-off.gif";
nav_promotions_on = new Image();
nav_promotions_on.src = "img/nav-promotions-on.gif";

nav_contact_off = new Image();
nav_contact_off.src = "img/nav-contact-off.gif";
nav_contact_on = new Image();
nav_contact_on.src = "img/nav-contact-on.gif";

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