It will process not only if fields have been filled, but if the filled in data is valid, compared to the type the owner expects visitors to fill in.
An example is included with the download package.
Here are some key features of "Formular":
· Six ready-made skins to choose from
· Field error animations
· Easy to enable / disable form fields and buttons
· Validation procedures are carried out by the MooTools Form.Validator plugin
· Fancy inline field validation with errorBox tool tips
Requirements:
· JavaScript enabled on client side
· MooTools 1.3 or higher