b_netscape = navigator.appName.indexOf('Netscape') != -1 ;
b_version = parseFloat(navigator.appVersion);
platformMac = navigator.appVersion.lastIndexOf('Macintosh') != -1;
if (b_version >= 4.0) {
if (platformMac) {
document.write('');
} else if (b_netscape) {
document.write('')
} else {
document.write('')
}
}