nav_about = new Image();
nav_about.src = "images/nav_about_on.gif";

nav_products = new Image();
nav_products.src = "images/nav_products_on.gif";

nav_sales = new Image();
nav_sales.src = "images/nav_sales_on.gif";

nav_quality = new Image();
nav_quality.src = "images/nav_quality_on.gif";

nav_pricing = new Image();
nav_pricing.src = "images/nav_pricing_on.gif";

nav_faq = new Image();
nav_faq.src = "images/nav_faq_on.gif";

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

button_login = new Image();
button_login.src = "images/button_login_on.gif";

button_signup = new Image();
button_signup.src = "images/button_signup_on.gif";

button_demo = new Image();
button_demo.src = "images/button_demo_on.gif";