I want to only allow users with IE8 (not IE6, IE7) or another browser to access my site when logged in.
I followed: http://code.google.com/p/ie6-upgrade-warning/ But
here is a good link that suggest some solution
http://garmahis.com/tools/ie6-update-warning/
personally i like fourth solution(http://www.browser-update.org/)
just a piece of cake