Answer:
(Fatawa Mahmudiya: 17/517; Al-Fiqh Al-Islami wa Adillatuhu: 4/2751)
Regarding wetting the baby’s head with water, it is alien to the teachings of Islam. If the head was wet in order to facilitate in shaving it, then it is a different story.
Regarding ‘name giving ceremony’, click on the following link for details:
http://askimam.org/fatwa/fatwa.php?askid=545553312c3664e514968b02d85177a7
Mufti Faizal Riza
22/10/2011
