Adding in error handling in javascript using session variable called err.  Taking hardcoded styling out of header (and HeaderAnon) since it's redundant and not used anywhere. For error validation to work, any form must have data-ajax="false" on it or else jquery mobile will gobble your error up and not display it until a page reload.
adding styles that I took out of the headers.
Merge pull request #32 from CST316TeamJ/Task-1386

Javascript error handling