function surveys_toggle() {
  if ($('input#edit-beachwatch-users-survey-all-surveys-flag').is(':checked')) {
    $('div#edit-beachwatch-users-survey-date-to-wrapper').show();
    $('div#edit-beachwatch-users-survey-date-flag-wrapper').hide();
  } 
  else {
    $('div#edit-beachwatch-users-survey-date-to-wrapper').hide();
    $('div#edit-beachwatch-users-survey-date-flag-wrapper').show();
  }
}


$(document).ready(function() {
  // toggle display of survey date range options
  surveys_toggle();
  $('input#edit-beachwatch-users-survey-all-surveys-flag').click(function() { surveys_toggle(); });
});