window.addEvent('domready', function(){

  // The elements used.
  var myForm = document.id('myForm'),
    myResult = document.id('myResult');

  // Labels over the inputs.
  myForm.getElements('[type=text], textarea').each(function(el){
    new OverText(el);
  });

  // Validation.
  new Form.Validator.Inline(myForm);

  // Ajax (integrates with the validator).
  new Form.Request(myForm, myResult, {
    requestOptions: {
      'spinnerTarget': myForm
    },
    extraData: { // This is just to make this example work.
      'html': 'Form sent.'
    }
  });

});