cheat sheets.

http://tetlaw.id.au/view/javascript/really-easy-field-validation
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add these classes to your fields to specify validations to perform on submit
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* required (not blank)
* validate-number (a valid number)
* validate-digits (digits only)
* validate-alpha (letters only)
* validate-alphanum (only letters and numbers)
* validate-date (a valid date value)
* validate-email (a valid email address)
* validate-url (a valid URL)
* validate-date-au (a date formatted as; dd/mm/yyyy)
* validate-currency-dollar (a valid dollar value)
* validate-selection (first option e.g. 'Select one...' is not selected option)
* validate-one-required (At least one textbox/radio element must be selected in
a group - see web page for specifics*)