protected void validatePage(Object command, Errors errors, int page) {
UserValidator validator = (UserValidator) getValidator();
//page is 0-indexed
switch (page) {
case 0: //if page 1 , go validate with validatePage1Form
validator.validatePage1Form(command, errors);
break;
case 1: //if page 2 , go validate with validatePage2Form
validator.validatePage2Form(command, errors);
break;
case 2: //if page 3 , go validate with validatePage3Form