<!--
    browserName = navigator.appName;
    browserVer = parseInt(navigator.appVersion);
    if ((browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer >=4)) {
        browserOK = "yes";
        }
    else {
        browserOK = "no";
        }
                   
    function imageOn(imgName) {
        if (browserOK == "yes") {
            imgOn = eval("'buttons/" + imgName + "_on.jpg'");
            document.images[imgName].src = imgOn;
        }
    }

    function imageOff(imgName) {
        if (browserOK == "yes") {
            imgOff = eval("'buttons/" + imgName + "_off.jpg'");
            document.images[imgName].src = imgOff;
        }
    }
//-->