var validationSet = {
  'firstname': {
    'regexp': /^.+?/,
    'error': 'Please enter your First Name. '
  },
  'lastname': {
    'regexp': /^.+?/,
    'error': 'Please enter your Last Name. '
  },
  'address': {
    'regexp': /^.+?/,
    'error': 'Please enter your Address. '
  },
  'phone': {
    'regexp': /\(?[0-9]{3}\)?[-. ]?[0-9]{3}[-. ]?[0-9]{4}/,
    'error': 'Please enter your Phone. '
  },
  'email': {
    'regexp': /^.+?@.+?\..+$/,
    'error': 'Please enter a valid email address. ' +
        'It should be of the form someone@example.com.'
  },
  'tickets_member': {
    'regexp': /^[0-9]+?/,
    'error': 'Please enter the number of Member tickets needed. '
  },
  'tickets_nonmember': {
    'regexp': /^[0-9]+?/,
    'error': 'Please enter the number of Non-Member tickets needed. '
  },
  'beef': {
    'regexp': /^[0-9]+?/,
    'error': 'Please enter the number of Beef Meals needed. '
  },
  'vegetarian': {
    'regexp': /^[0-9]+?/,
    'error': 'Please enter the number of Vegetarian Meals needed. '
  }
};