var nVer =
navigator.appVersion;
var
nAgt = navigator.userAgent;
var
browserName = navigator.appName;
var
fullVersion = '' +
parseFloat(navigator.appVersion);
var
majorVersion = parseInt(navigator.appVersion, 10);
var
nameOffset, verOffset, ix;
// In
Opera, the true version is after "Opera" or after "Version"
if ((verOffset = nAgt.indexOf("Opera")) != -1) {
browserName = "Opera";
fullVersion =
nAgt.substring(verOffset + 6);
if
((verOffset = nAgt.indexOf("Version"))
!= -1)
fullVersion =
nAgt.substring(verOffset + 8);
}
// In
MSIE, the true version is after "MSIE" in userAgent
else if ((verOffset = nAgt.indexOf("MSIE")) != -1) {
browserName = "Microsoft Internet Explorer";
fullVersion =
nAgt.substring(verOffset + 5);
}
// In
Chrome, the true version is after "Chrome"
else if ((verOffset = nAgt.indexOf("Chrome")) != -1) {
browserName = "Chrome";
fullVersion =
nAgt.substring(verOffset + 7);
}
// In
Safari, the true version is after "Safari" or after
"Version"
else if ((verOffset = nAgt.indexOf("Safari")) != -1) {
browserName = "Safari";
fullVersion =
nAgt.substring(verOffset + 7);
if
((verOffset = nAgt.indexOf("Version"))
!= -1)
fullVersion =
nAgt.substring(verOffset + 8);
}
// In
Firefox, the true version is after "Firefox"
else if ((verOffset = nAgt.indexOf("Firefox")) != -1) {
browserName = "Firefox";
fullVersion =
nAgt.substring(verOffset + 8);
}
// In
most other browsers, "name/version" is at the end of userAgent
else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) <
(verOffset = nAgt.lastIndexOf('/'))) {
browserName =
nAgt.substring(nameOffset, verOffset);
fullVersion =
nAgt.substring(verOffset + 1);
if
(browserName.toLowerCase() == browserName.toUpperCase()) {
browserName = navigator.appName;
}
}
// trim
the fullVersion string at semicolon/space if present
if ((ix
= fullVersion.indexOf(";")) != -1)
fullVersion =
fullVersion.substring(0, ix);
if ((ix
= fullVersion.indexOf(" ")) != -1)
fullVersion =
fullVersion.substring(0, ix);
majorVersion = parseInt('' + fullVersion, 10);
if
(isNaN(majorVersion)) {
fullVersion = '' + parseFloat(navigator.appVersion);
majorVersion =
parseInt(navigator.appVersion, 10);
}
document.write(''
+ 'Browser
name = ' + browserName + '<br>'
+ 'Full
version = ' + fullVersion + '<br>'
+ 'Major version =
' + majorVersion + '<br>'
+ 'navigator.appName
= ' + navigator.appName + '<br>'
+ 'navigator.userAgent
= ' + navigator.userAgent + '<br>'
)
