Makeenok Alexandr, Belarus Minsk. To read the summary. The application of these modules is caused by simplification of an initial code of the program. The program is intended that the users of your site could leave the messages. After check the data enter the name in a database.
Email is checked on a syntactic correctness.
The comment on length and presence stop of symbols, also simple check on presence HTML tegs. If all of you correctly have made the program should work. If it happened you can go on Support Forum to describe your situation and to set a question. As you will be switched on in the list of the co-authors. At the request of the customer I can adapt the program under concrete conditions.