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 =...
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