[Zope] How to require an @ symbol in email form field??

[R. David Murray]

On Tue, 18 Jul 2000, Duncan Booth wrote:
> Use javascript to check that all required fields are present before 
> the form is actually submitted. Here is some of the code I use:

Note, however, that using Javascript to do the checking client side
is only useful as a user convenience.  If you have data validation
issues you *must* repeat the validation server side, in case some
clever cracker^h^h^h^h^h^h^huser bypasses your form and submits
data without going through the javascript.

--RDM