Those robots don't use the button per say. Disabling it is useless.

What you could do is include the time the form was generated in a hidden field, then compare the current time against that field when the form is submitted.

I'm not saying that "disabling" the submit button for a period of time is the best solution, just how to achieve it.

In reply to Re: enabling "Submit" button after X seconds. by ikegami
in thread enabling "Submit" button after X seconds. by mrc

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