I\'m just reading this documentation about Javascript 1.2, but I\'m wondering which version of Javascript is being used in the most popular browsers.
http://www.tuto
Rather than finding which version you are using you can rephrase your question to "which version of ECMA script does my browser's JavaScript/JSscript engine conform to".
For IE :
alert(@_jscript_version); //IE
Refer Squeegy's answer for non-IE versions :)