JSP CUSTOM TAG LIBRARIES
Specifies that the value supplied by the user in the input field must be a valid credit card number. If validation fails, the body of this tag is evaluated.
Be sure the clientvalidate attribute of the input tag you are validating does not equal "none." The clientvalidate attribute of the form tag containing the input tag should be set to "true."
Contexts
Valid in:
alert
2) msgkey attribute value
3) message attribute value
4) body of this tag
HTML Attributes
See the Common HTML tag attributes section for definitions of the following standard HTML tag attributes:
style