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"Paulo" == Paulo Eduardo Neves <neves@inf.puc-rio.br> writes:

Paulo> Another approach is to use javascript to validate it before Paulo> submitting it. A js library for this was posted sometime ago in Paulo> the zope list. It just guarantee that an invalid field won't be Paulo> submitted if ALL your users have javascript turned on. That's the rub. Since you can't guarantee that all your users have JavaScript enabled, you have to perform all the checks in the server anyway. Skip