browserName = navigator.appName;browserVer = parseInt(navigator.appVersion);if (browserName == "Netscape" && browserVer>= 3) version = "n3";else version = "n2";if (browserVer >= 4) version = "n3";if (version == "n3") {
        pic1on = new Image(); pic1off = new Image();
        pic1on.src = "images/125on.gif"; pic1off.src = "images/125off.gif";
        pic2on = new Image(); pic2off = new Image();
        pic2on.src = "images/hra2on.gif"; pic2off.src = "images/hra2off.gif";
        pic3on = new Image(); pic3off = new Image();
        pic3on.src = "images/fsa2on.gif"; pic3off.src = "images/fsa2off.gif";
        pic4on = new Image(); pic4off = new Image();
        pic4on.src = "images/132on.gif"; pic4off.src = "images/132off.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;}}