image1 = new Image();
image1.src = "images/button_home_on.gif";
image2 = new Image();
image2.src = "images/button_aboutus_on.gif";
image3 = new Image();
image3.src = "images/button_health_on.gif";
image4 = new Image();
image4.src = "images/button_benefits_on.gif";
image5 = new Image();
image5.src = "images/button_testimonials_on.gif";
image6 = new Image();
image6.src = "images/button_products_on.gif";
image7 = new Image();
image7.src = "images/button_links_on.gif";
image8 = new Image();
image8.src = "images/button_careers_on.gif";