JavaScript and asp.net determine browser type

Below we provide three kinds of JavaScript tutorials to determine browser type and ASP tutorial. NET Judgment browsing type, below we look at JS Judge user browsing is Firfox,msie, etc.

function Getpagecharset () {
var charSet = "";
var otype = Getbrowser ();
Switch (otype) {
Case "IE":
CharSet = Document.charset;
Break
Case "FIREFOX":
CharSet = Document.characterset;
Break
Default
Break
}
return charSet;
}

Get the type of browser is IE or Firefox

function Getbrowser () {
var otype = "";
if (Navigator.userAgent.indexOf ("MSIE")!=-1) {
Otype= "IE";
}else if (navigator.userAgent.indexOf ("Firefox")!=-1) {
Otype= "FIREFOX";
}
return otype;
}

How to determine the type of browser: Isfirefox MSIE

function Isie ()
{
var i=navigator.useragent.tolowercase (). IndexOf ("MSIE");
Return i>=0;
}
Funciton Isfirefox ()
{
var i=navigator.useragent.tolowercase (). IndexOf ("Firefox");
Return i>=0;
}

JS Two

function Getbrowser () {
var otype = "";
if (Navigator.userAgent.indexOf ("MSIE")!=-1) {
Otype= "IE";
}else if (navigator.userAgent.indexOf ("Firefox")!=-1) {
Otype= "FIREFOX";
}
return otype;
}  

asp.net tutorial to determine browser type

if (Page.Request.Browser.EcmaScriptVersion.Major > 0 && Page.Request.Browser.W3CDomVersion.Major > 0)//Decide whether to support script
{
Response.Write ("Browser name and version number:" + Page.Request.Brow Ser. Type + "<br/>");
Response.Write ("browser version number:" + Page.Request.Browser.Version + "<br/>");
Response.Write ("browser major version Number:" + Page.Request.Browser.MajorVersion + "<br/>");
Response.Write ("Browser name:" + Page.Request.Browser.Browser);
}