Restrict checkout.pl to limited countries or IPs?

[Histographik]

I would like to be able to restrict checkout.pl to one or two countries:

If you live in country X or Y the checkout.pl will proceed. If you live in country Z the checkout.pl will issue warning:

"Sorry Orders are Restricted to Countries X and Y only : Country Z is not supported."

I'm on a shared hosting plan so I can't install Perl Modules, but could this be done using my customers ENV{'REMOTE_ADDR'} and checking against a database of IP ranges (on my share hosting plan i have one MySQL Database) ?

Perhaps phpclasses might be another way of doing this?

Any help appreciated...

[Koibito]

Wouldn't is be easier to use a drop-down list of the countries of the world, and then prevent the customer to complete the check-out process when the country variable has a certain value? You can easily do that in JavaScript.

http://www.geekpedia.com/code54_Drop-do ... tries.html

[Histographik]

Thanks Koibito, I will have a look-see and see if it will work for me.

EDIT:
Worked out well -thanks for the pointer.