[KosBeg]

вот лог консоли с http://lookingschool.com/index.php
POST http://lookingschool.com/validate.php [HTTP/1.1 404 Not Found 1702мс]
а вот с http://lookingschool.com/ajax/index.php
POST http://lookingschool.com/ajax/validate.php [HTTP/1.1 200 OK 771мс]