[thelist] website help/advice

Theodore Serbinski wrote:
> 
> Immediately 2 concerns come to my mind. 1. Selling gift certificates online,
> can this be done securely? For example, how could I stop the user from
> printing out multiple copies of it? I could stop them from accessing the
> page by setting a cookie to stop them, but that will only work if they don't
> clear all of their cookies/cache. Is this feasible by anymeans? Right now,
> I'm thinking it is not going to work too well.

Do what Admission.com does with their E-Ticket. Its a PDF - created on the fly that
has a bar code. The bar code can only be scanned once.
 
-- 
Anthony Baratta