some style tweaks for the header and new group page
changed cookie flow and added navigation trapping depending on where
the user comes from
removed tab characters, change navigation flow for a redirect
new navigation page controller to view other groups or all
new navigation form template page view other groups
corrected spelling error
added some info and a link to change group if needed
code style changes and added missing end tab </ul>
changed look and content of header
changed content
removed obsolete $_GET var, changed Group link both files