MSIE version
MSIE version
1.http://jamazon.co.uk/web/2008/07/23/an-ie7-bug-that-returns-msie-60-
user-agent-string/
IE7 will return an error user agent when there's too many software add
their name into user agent.
2. My browser return this user agent, seems jquery.browser.version=6.0
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0
(compatible; MSIE 6.0; Windows NT 5.1; SV1) )