A simple 'sniffer' that determines browser version and vendor : JavaScript Version « Development « JavaScript DHTML






A simple 'sniffer' that determines browser version and vendor


/*
Examples From
JavaScript: The Definitive Guide, Fourth Edition

Legal matters: these files were created by David Flanagan, and are
Copyright (c) 2001 by David Flanagan.  You may use, study, modify, and
distribute them for any purpose.  Please note that these examples are
provided "as-is" and come with no warranty of any kind.

David Flanagan
*/

/*
 * File: browser.js
 * Include with: <script SRC="browser.js"></script>
 * 
 * A simple "sniffer" that determines browser version and vendor.
 * It creates an object named "browser" that is easier to use than
 * the "navigator" object.
 */
// Create the browser object.
var browser = new Object();

// Figure out the browser major version.
browser.version = parseInt(navigator.appVersion);

// Now figure out if the browser is from one of the two
// major browser vendors. Start by assuming it is not.
browser.isNetscape = false;
browser.isMicrosoft = false;
if (navigator.appName.indexOf("Netscape") != -1) 
    browser.isNetscape = true;
else if (navigator.appName.indexOf("Microsoft") != -1)
    browser.isMicrosoft = true;


           
       








Related examples in the same category

1.Check whether JavaScript 1.2 is supported
2.Set a variable to determine what version of JavaScript we support
3.Using Multiple Versions of JavaScript with the language Attribute
4.Using the 'noscript' Tag
5. Testing Different JavaScript Versions
6.Multiple Script Versions
7.Employing the 'NOSCRIPT' Tag
8.Rendering Different Content for Scriptable and Nonscriptable Browsers
9.Hiding Scripts from Older Browsers
10.JavaScript 1.2 is supported, extract a new URL from the portion
11.Variable for Browser version and vendor
12.Get IE Version Number
13.Get NN (Netscape Navigator) Version Number