browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )));

if (browser) {
window.onerror=null;

		// MAIN NAV BUTTONS
			
			home_off = new Image;
			home_off.src = '/images/main_nav/tn_home.gif';
			home_on = new Image;
			home_on.src = '/images/main_nav/tn_home_ro.gif';

			racing_off = new Image;
			racing_off.src = '/images/main_nav/tn_racing.gif';
			racing_on = new Image;
			racing_on.src = '/images/main_nav/tn_racing_ro.gif';
			
			products_off = new Image;
			products_off.src = '/images/main_nav/tn_products.gif';
			products_on = new Image;
			products_on.src = '/images/main_nav/tn_products_ro.gif';
			
			xpress_off = new Image;
			xpress_off.src = '/images/main_nav/tn_xpress.gif';
			xpress_on = new Image;
			xpress_on.src = '/images/main_nav/tn_xpress_ro.gif';
			
			carcare_off = new Image;
			carcare_off.src = '/images/main_nav/tn_carcare.gif';
			carcare_on = new Image;
			carcare_on.src = '/images/main_nav/tn_carcare_ro.gif';

			store_off = new Image;
			store_off.src = '/images/main_nav/tn_store.gif';
			store_on = new Image;
			store_on.src = '/images/main_nav/tn_store_ro.gif';

			mediaroom_off = new Image;
			mediaroom_off.src = '/images/main_nav/tn_mediaroom.gif';
			mediaroom_on = new Image;
			mediaroom_on.src = '/images/main_nav/tn_mediaroom_ro.gif';

			about_off = new Image;
			about_off.src = '/images/main_nav/tn_about.gif';
			about_on = new Image;
			about_on.src = '/images/main_nav/tn_about_ro.gif';

			sitemap_t_off = new Image;
			sitemap_t_off.src = '/images/main_nav/tn_sitemap.gif';
			sitemap_t_on = new Image;
			sitemap_t_on.src = '/images/main_nav/tn_sitemap_ro.gif';

			sitemap_off = new Image;
			sitemap_off.src = '/images/main_nav/tn_sitemap.gif';
			sitemap_on = new Image;
			sitemap_on.src = '/images/main_nav/tn_sitemap_ro.gif';


function putImage(imgDocID,imgObjName) {
	//   imgDocID - the name or number of the document image to be replaced
	//   imgObjName - the name of the image object to be swapped in
	if (browser) {
	        document.images[imgDocID].src = eval(imgObjName + ".src")
		}		
	}	
}