var validationSet = {
  'send_to': {
    'regexp': /^[1-9]+$/,
    'error': 'Please select to Send To Newsletter. '
  },
  'name': {
    'regexp': /^.+?/,
    'error': 'Please enter your Name. '
  },
  'email': {
    'regexp': /^.+?@.+?\..+$/,
    'error': 'Please enter your Email address. '
  }
};