function preloader() {
	if (document.images) {
	//sub navigation
	nav_history_r = newImage("/images/about/nav_history_r.gif");
	nav_mission_r = newImage("/images/about/nav_mission_r.gif");
	nav_catalog_r = newImage("/images/about/nav_catalog_r.gif");
	nav_cost_r = newImage("/images/about/nav_cost_r.gif");

	// added 3/27/02 as new nav items -PJD
	nav_foundation_r = newImage("/images/about/nav_foundation_r.gif");
	nav_cqi_r = newImage("/images/about/nav_cqi_r.gif");
	nav_links_r = newImage("/images/about/nav_links_r.gif");

	preloadFlag = true
	}
}