Javascript code to get the browser version and name implementation function _ javascript skills

Obtain the browser name and version information. If the current browser is IE, the browser version is displayed. Otherwise, the current browser name and version are displayed. For detailed implementation code, see this article. The Code is as follows:

// Obtain the browser name and version information
Function appInfo (){
Var browser = {
Msie: false, firefox: false, opera: false, safari: false,
Chrome: false, netscape: false, appname: 'unknown ', version: 0
},
UserAgent = window. navigator. userAgent. toLowerCase ();
If (/(msie | firefox | opera | chrome | netscape) \ D + (\ d [\ d.] *)/. test (userAgent )){
Browser [RegExp. $1] = true;
Browser. appname = RegExp. $1;
Browser. version = RegExp. $2;
} Else if (/version \ D + (\ d [\ d.] *). * safari/. test (userAgent) {// safari
Browser. safari = true;
Browser. appname = 'safari ';
Browser. version = RegExp. $2;
}
Return browser;
}
// Call example
Var myos = appInfo ();
// If the current browser is IE, the browser version is displayed. Otherwise, the current browser name and version are displayed.
If (myos. msie ){
Alert (myos. version );
} Else {
Alert (myos. appname + myos. version );
}

The Code is as follows:

Function getOs ()
{
Var OsObject = "";
If (navigator. userAgent. indexOf ("MSIE")> 0 ){
Return "MSIE ";
}
If (isFirefox = navigator. userAgent. indexOf ("Firefox")> 0 ){
Return "Firefox ";
}
If (isSafari = navigator. userAgent. indexOf ("Safari")> 0 ){
Return "Safari ";
}
If (isCamino = navigator. userAgent. indexOf ("Camino")> 0 ){
Return "Camino ";
}
If (isMozilla = navigator. userAgent. indexOf ("Gecko/")> 0 ){
Return "Gecko ";
}
}