//preload rollover images
if (document.images) {
	home_over = new Image(204,18); 
	home_over.src="images/nav_home_over.jpg";
	news_over = new Image(226,38); 
	news_over.src="images/nav_news_over.jpg";
	sapphire_over = new Image(226,38); 
	sapphire_over.src="images/nav_sapphire_over.jpg";
	polishing_over = new Image(226,38); 
	polishing_over.src="images/nav_polishing_over.jpg";
	custom_over = new Image(226,38); 
	custom_over.src="images/nav_custom_over.jpg";
	materials_over = new Image(226,38); 
	materials_over.src="images/nav_materials_over.jpg";
	tech_over = new Image(226,38); 
	tech_over.src="images/nav_tech_over.jpg";
	discount_over = new Image(226,38); 
	discount_over.src="images/nav_discount_over.jpg";
	buy_over = new Image(226,38); 
	buy_over.src="images/nav_chefcorps_over.jpg";
	co2_over = new Image(226,38); 
	co2_over.src="images/nav_sponsors_over.jpg";
	contact_over = new Image(226,38); 
	contact_over.src="images/nav_newsletters_over.jpg";

}