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§ Validating email addresses (it's impossible) (Rant Alert!)

Search google for "validate email address" and you'll get about 303,000 results.  I bet all of them are wrong...

Short version:

Why bother?  I'm probably going to enter "example@example.com" anyway.

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§ Simpler validate form fields are filled in (no additional class names)

Makes sure something is entered in form fields.  If your form fields have classnames, don't use this one!

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§ Validate form fields are filled in (additional class names)

Makes sure something is entered in form fields.  Uses regex to replace classnames so other classnames aren't affected.

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“If everybody minded their own business,” said the Duchess in a hoarse growl, “the world would go round a deal faster than it does.”
Lewis Carroll, quoted in To Say Nothing of the Dog, Connie Willis