Reformat code.
Unused variables.
Variable $answer is undefined.
Variable $form_state is undefined.
Unused global variable $user.
Comments and
56 Functions must not contain multiple empty lines in a row; found 2 empty lines
Variable "C" is camel caps format. do not use mixed case (camelCase), use lower case and _.
Comment fix.
A comma should follow the last multiline array item. Found: MENU_CALLBACK.
Constants.
Delete "; $Id$".
Comments.
Merge pull request #21 from DrupalCodeReview/code_pg_2co

Code standard pg_2co.