browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if ((browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer >=4)) version = "n3";
else version = "n2"
             if (version == "n3") {
             nav1on = new Image();
             nav1on.src = "../images/nav1on.gif";
             nav2on = new Image();
             nav2on.src = "../images/nav2on.gif";
             nav3on = new Image();
             nav3on.src = "../images/nav3on.gif";
             nav4on = new Image();
             nav4on.src = "../images/nav4on.gif";
             nav5on = new Image();
             nav5on.src = "../images/nav5on.gif";
             nav6on = new Image();
             nav6on.src = "../images/nav6on.gif";
             nav7on = new Image();
             nav7on.src = "../images/nav7on.gif";
             toc1on = new Image();
             toc1on.src = "../images/take_action_on.gif";
             toc2on = new Image();
             toc2on.src = "../images/join_the_fight_on.gif";
             toc3on = new Image();
             toc3on.src = "../images/in_the_community_on.gif";
             toc4on = new Image();
             toc4on.src = "../images/upcoming_events_on.gif";
             toc5on = new Image();
             toc5on.src = "../images/hot_topics_on.gif";
             toc6on = new Image();
             toc6on.src = "../images/related_resources_on.gif";
             toc7on = new Image();
             toc7on.src = "../images/email_this_page_on.gif";
             toc8on = new Image();
             toc8on.src = "../images/more_on_topic_on.gif";
             toc9on = new Image();
             toc9on.src = "../images/case_manager_on.gif";
             toc10on = new Image();
             toc10on.src = "../images/about_therapies_on.gif";
             icon1on = new Image();
             icon1on.src = "../images/icon_1_on.gif";
             icon2on = new Image();
             icon2on.src = "../images/icon_2_on.gif";
             icon3on = new Image();
             icon3on.src = "../images/icon_3_on.gif";
             icon4on = new Image();
             icon4on.src = "../images/icon_4_on.gif";
             icon5on = new Image();
             icon5on.src = "../images/icon_5_on.gif";
             icon6on = new Image();
             icon6on.src = "../images/icon_6_on.gif";

			 
             nav1off = new Image();
             nav1off.src = "../images/nav1off.gif";
             nav2off = new Image();
             nav2off.src = "../images/nav2off.gif";
             nav3off = new Image();
             nav3off.src = "../images/nav3off.gif";
             nav4off = new Image();
             nav4off.src = "../images/nav4off.gif";
             nav5off = new Image();
             nav5off.src = "../images/nav5off.gif";
             nav6off = new Image();
             nav6off.src = "../images/nav6off.gif";
             nav7off = new Image();
             nav7off.src = "../images/nav7off.gif";
             toc1off = new Image();
             toc1off.src = "../images/take_action_off.gif";
             toc2off = new Image();
             toc2off.src = "../images/join_the_fight_off.gif";
             toc3off = new Image();
             toc3off.src = "../images/in_the_community_off.gif";
             toc4off = new Image();
             toc4off.src = "../images/upcoming_events_off.gif";
             toc5off = new Image();
             toc5off.src = "../images/hot_topics_off.gif";
             toc6off = new Image();
             toc6off.src = "../images/related_resources_off.gif";
             toc7off = new Image();
             toc7off.src = "../images/email_this_page_off.gif";
             toc8off = new Image();
             toc8off.src = "../images/more_on_topic_off.gif";
             toc9off = new Image();
             toc9off.src = "../images/case_manager_off.gif";
             toc10off = new Image();
             toc10off.src = "../images/about_therapies_off.gif";
             icon1off = new Image();
             icon1off.src = "../images/icon_1_off.gif";
             icon2off = new Image();
             icon2off.src = "../images/icon_2_off.gif";
             icon3off = new Image();
             icon3off.src = "../images/icon_3_off.gif";
             icon4off = new Image();
             icon4off.src = "../images/icon_4_off.gif";
             icon5off = new Image();
             icon5off.src = "../images/icon_5_off.gif";
             icon6off = new Image();
             icon6off.src = "../images/icon_6_off.gif";

             }

     function img_act(imgName) {

             if (version == "n3") {
             imgOn = eval(imgName + "on.src");
             document [imgName].src = imgOn;
             }

     }

     function img_inact(imgName) {

             if (version == "n3") {
             imgOff = eval(imgName + "off.src");
             document [imgName].src = imgOff;
             }

     }