Update form field

Updated form field ‘cc_author_javascript’ with a value, so the server
knows that JavaScript is active and the script has already handled the
task of updating the author info fields.
Added hidden form field

Added a field ‘cc_author_javascript’ that is used by the server to
determine whether JavaScript is active on the client. If yes, the
server knows that JS has already updated the author info fields and
doesn’t have to do that itself.
Fixed spacing

Cleaned up spacing around parentheses in conditional statement.