var Info = navigator.platform;
var name = navigator.appName;
var vers = navigator.appVersion;
var shortvers = vers.substring(0,1);
if (Info.indexOf("Mac") != -1)
{
if ((shortvers == 4) && (name == "Netscape"))
{
document.write('');
}
else
{
document.write('');
}
}
else
{
document.write('');
}