Detect Brower Javascript Version

The following Javascript will show which version of Javacript the browser supports.
http://javascript.about.com/library/bljver.htm

Surprisingly, IE8 on Windows 7 only supports up to version 1.3. No wonder some Javascripts which work on Firefox (up to 1.8), Safari and Chrome (up to 1.7) do not work on IE8.

Javascript version 1 supported

Javascript version 1.1 supported

Javascript version 1.2 supported

Javascript version 1.3 supported

Javascript version 1.4 supported

Javascript version 1.5 supported