This widget is based on Spry's accordion. It integrates it with the TMT Validator. Form fields are validated one panel at time. Each time the user leaves a panel and moves to a new one, the previous is validated. Whenever the form is submitted instead, all fields are validate in one single swap
This sample uses "tmt.validator.multiSectionBoxCallback" as callback. If you not specify a callback, error messages will be displayed inside JavaScript alerts (see documentation)