var browser_name = navigator.appName;
var browser_version = parseInt(navigator.appVersion);
var browser_info = navigator.appVersion;
switch (browser_name)
{
case "Netscape" :
if(browser_version < 5)
{
document.write('');
}
else
{
document.write('');
}
break;
case "Microsoft Internet Explorer" :
document.write('');
break;
case "Opera" :
document.write('');
break;
default :
document.write('');
}