INSERT/UPDATE/DELETE AP/PR/CH via web page - completed.

modified:   common-close-page.inc.php
modified:   common-functions.inc.php
modified:   common-stylesheet.css
modified:   differiti-editor-form-factory.inc.php
modified:   differiti-editor-query-factory.inc.php
modified:   differiti-editor.php
modified:   differiti-esegui-query.php

Main functionality completed. Minor graphical improvements.