function validate(formNode){
  var formValidatorInstance = new FormValidator(formNode);
  formValidatorInstance.addRule('persname','We need a name to reply properly','required');
  formValidatorInstance.addRule('businame','We need a name to reply properly','required');
  formValidatorInstance.addRule('email','We need a valid email address with which to reply','email');
  formValidatorInstance.addRule('blurb','Your text is less than 50 or more than 350 characters long','rangelength',Array(50,350));
  return formValidatorInstance.validate(); 
}