Offline mode app in a (HTML5) browser possible?

Question

Is it possible to build an application inside in browser? An application means:

1 Where there is connection (online mode) between the brows

Answer 1

Have a look at Google Gears, http://code.google.com/apis/gears/. Although they have been phased out in favour of HTML5. However, it seems that what is being pushed as HTML5 is Google Gears.