how to add age restriction in my shoping cart?

Respected All.
i need to put age restriction on my shopping cart. when user came to my site. it should b give his age. if he is under 18 then he couldn't see my site. and also his ip or cookie save in database and show in admin pannel and admin can delete his ip or cookie.
need urgent guidance. my skype is faysalpk18
waiting for kind response

here are some Mods to assign the Age in the Registration as well as checking for the Age before beeing allowed to access the products. Anything MORE requires to get paid assistance by a Pro.

http://www.opencart.com/index.php?route ... rification

http://www.opencart.com/index.php?route ... search=dob

http://www.opencart.com/index.php?route ... of%20birth

http://www.opencart.com/index.php?route ... ion&page=4

Good Luck

Ernie
openshop.li