• auth: directory which stores the procedures neccessary for user authentication (server-side)
• db: directory which store the files that hande database abstraction.
• footer.inc.php: the code which renders the information for the main footer for the site
• fpdf contains the files that that are required to create a pdf.
• generatePDF.php generates the pdf created by fpdf
• header.inc.php: header file that is inculuded in every file that contains the Temple logo and redbanner.
• tbl_func.php includes the graphics/layout for the table withchemical listings.
• util.php: file that tells the user time elapsed. precondition:(sec); postcondition(string representing time elapsed)