<!--
function getAppVersion()
{
        appname= navigator.appName;
        appversion = navigator.appVersion;
        majorver = appversion.substring(0, 1);

        if((appname == "Netscape") && (majorver >= 3))
                return 1;

        if((appname == "Microsoft Internet Explorer") && (majorver >= 4))
                return 1;

        return 0;
}

function swtch(num, imgname)
{
        if(getAppVersion())
        {
                document[imgname].src = img[num].src;
        }
}
-->