var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;
if (checkIt('safari')) browser = "Safari"
else if (checkIt('msie')) browser = "Internet Explorer"
else if (!checkIt('compatible'))
{
	browser = "Netscape Navigator"
	version = detect.charAt(8);
}
else browser = "An unknown browser";

if (!version) version = detect.charAt(place + thestring.length);

if (!OS)
{
	if (checkIt('mac')) OS = "Mac"
	else if (checkIt('win')) OS = "Windows"
	else OS = "an unknown operating system";
}
function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}