// preload global images
if (document.images) {

// Nav Images

	// catalog
	catalog_f1 = new Image;
	catalog_f1.src = "/images/nav_catalog_f1.gif";
	catalog_f2 = new Image;
	catalog_f2.src = "/images/nav_catalog_f1.gif";

	// submittals
	submittals_f1 = new Image;
	submittals_f1.src = "/images/nav_submittals_f1.gif";
	submittals_f2 = new Image;
	submittals_f2.src = "/images/nav_submittals_f1.gif";
        
	// services
	services_f1 = new Image;
	services_f1.src = "/images/nav_services_f1.gif";
	services_f2 = new Image;
	services_f2.src = "/images/nav_services_f1.gif";
          
	// order
	order_f1 = new Image;
	order_f1.src = "/images/nav_order_f1.gif";
	order_f2 = new Image;
	order_f2.src = "/images/nav_order_f1.gif";
     
}