JavaScript » Navigator » appVersion

Syntax:

navigator.appVersion

This property contains information about the browser version being used. If it is a Netscape browser, it contains the release number, the language used, the platform on which the browser is running, and either the letter I to indicate the international release, or the letter U for the domestic US release which has stronger encryption. e.g., '4.5 [en] (WinNT; I)'. With IE, this property only contains information about the compatible version of Internet Explorer and the platform, such as: '4.0 (compatible; MSIE 4.01; Windows NT)'.