swfobject.ua exposes the result of SWFObject's user agent detection to other libraries (e.g. plug-ins for SWFObject):

• swfobject.ua.w3 returns a Boolean whether or not W3C DOM is supported
• swfobject.ua.pv returns an Array that contains the major, minor and release version number of the Flash Player
• swfobject.ua.wk returns the Webkit version or false if not Webkit
• swfobject.ua.ie returns a Boolean to indicate whether a visitor uses Internet Explorer on Windows or not
• swfobject.ua.win returns a Boolean to indicate whether a visitor uses Windows OS or not
• swfobject.ua.mac returns a Boolean to indicate whether a visitor uses Mac OS or not