<!--
navigation_worthy = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) ||

          ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))
                                                     
	if (navigation_worthy)

        {
		logoon = new Image(251, 113);
        logoon.src = "images/animal_hospital_on.gif";

		logooff = new Image(251, 113);
        logooff.src = "images/animal_hospital_off.gif";


		homeon = new Image(131, 14);
        homeon.src = "images/n_home_on.gif";

		homeoff = new Image(131, 14);
        homeoff.src = "images/n_home_off.gif";


		abouton = new Image(131, 14);
        abouton.src = "images/n_about_on.gif";

		aboutoff = new Image(131, 14);
        aboutoff.src = "images/n_about_off.gif";


		serviceson = new Image(131, 14);
        serviceson.src = "images/ns_services_on.gif";

		servicesoff = new Image(131, 14);
        servicesoff.src = "images/ns_services_off.gif";


		videoson = new Image(131, 14);
        videoson.src = "images/ns_videos_on.gif";

		videosoff = new Image(131, 14);
        videosoff.src = "images/ns_videos_off.gif";


		staffon = new Image(131, 14);
        staffon.src = "images/ns_staff_on.gif";

		staffoff = new Image(131, 14);
        staffoff.src = "images/ns_staff_off.gif";


		faqon = new Image(131, 14);
        faqon.src = "images/ns_faq_on.gif";

		faqoff = new Image(131, 14);
        faqoff.src = "images/ns_faq_off.gif";


		linkson = new Image(131, 14);
        linkson.src = "images/n_links_on.gif";

		linksoff = new Image(131, 14);
        linksoff.src = "images/n_links_off.gif";


		requeston = new Image(131, 14);
        requeston.src = "images/n_request_on.gif";

		requestoff = new Image(131, 14);
        requestoff.src = "images/n_request_off.gif";


		clienton = new Image(131, 14);
        clienton.src = "images/n_client_on.gif";

		clientoff = new Image(131, 14);
        clientoff.src = "images/n_client_off.gif";


		contacton = new Image(131, 14);
        contacton.src = "images/n_contact_on.gif";

		contactoff = new Image(131, 14);
        contactoff.src = "images/n_contact_off.gif";
              }

       function img_act(imgName)
       {
               if (navigation_worthy)
               {
               imgOn = eval(imgName + "on.src");
               document [imgName].src = imgOn;
               }
       }

       function img_inact(imgName)
       {
               if (navigation_worthy)
               {
               imgOff = eval(imgName + "off.src");
               document [imgName].src = imgOff;
               }
       }
// -->