new header graphic (issue 62); unifies header style and options across all pages; improves use of space on pages (issue 71); gives users more control over opening new tabs (issue 73)
unifies header style and options across pages

new version of header graphic (issue 62); unifies menu style and
options; improves use of space on pages (issue 71); provides users more
control over opening of tabs (issue 73)
fixes session_start() warning
fixes bug in find_author

and/or radio buttons now only appear when more than one author, and they
appear at the bottom
fixes menu style for 1280 x 800 resolution
style updates for vertical text