Script Summary: Check if the current Bugzilla page is loaded by authenticated user - for pages accessible by anonymous users but showing different content for them.
Some bugzilla pages are accessible by both authenticated and anonymous users but show different content in each case - for example a search page and results of any search. This fact may be annoying, esp. in a combination with automatic logout after a time limit - you get different page content after page reload - silently, with no warning.
This scripts checks if you are logged in, every time - even at pages where Bugzilla does not require it.
