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

                             && (parseInt(navigator.appVersion) >= 4 ))) {
                             version = "supported";
                     }
                             else {
                             version = "notsupported";
                     }
if (version == "supported")
{
                        img1on = new Image(93, 21);
                        img1on.src = "/assets/board_on.gif";
                        img2on = new Image(51, 21);
                        img2on.src = "/assets/ski_on.gif";
                        img3on = new Image(72, 21);
                        img3on.src = "/assets/bike_on.gif";
                        img4on = new Image(51, 21);
                        img4on.src = "/assets/hike_on.gif";
                        img5on = new Image(89, 21);
                        img5on.src = "/assets/photo_on_rei.gif";
                        img6on = new Image(64, 21);
                        img6on.src = "/assets/climb_on.gif";
                    
						img1off = new Image(93, 21);
                        img1off.src = "/assets/board_off.gif";
                        img2off = new Image(51, 21);
                        img2off.src = "/assets/ski_off.gif";
                        img3off = new Image(72, 21);
                        img3off.src = "/assets/bike_off.gif";
                        img4off = new Image(51, 21);
                        img4off.src = "/assets/hike_off.gif";
                        img5off = new Image(89, 21);
                        img5off.src = "/assets/photo_off_rei.gif";
                        img6off = new Image(64, 21);
                        img6off.src = "/assets/climb_off.gif";

                        }
        function img_act(imgName) {
                        if (version == "supported") {
                        imgOn = eval(imgName + "on.src");
                        document.images [imgName].src = imgOn;
                        }
                        }
        function img_inact(imgName) {
                        if (version == "supported") {
                        imgOff = eval(imgName + "off.src");
                        document.images [imgName].src = imgOff;
                        }
                        }