/**
 * Attaches the calendar behavior to all required fields
 */
Drupal.behaviors.date_popup = function (context) {
  for (var id in Drupal.settings.datePopup) {
    $('#'+ id).bind('focus', Drupal.settings.datePopup[id], function(e) {
      if (!$(this).hasClass('date-popup-init')) {
        var datePopup = e.data;
        // Explicitely filter the methods we accept.
        switch (datePopup.func) {
          case 'datepicker':
            $(this)
              .datepicker(datePopup.settings)
              .addClass('date-popup-init')
            $(this).click(function() {
              $(this).focus();
            });
            break;

          case 'timeEntry':
            $(this)
              .timeEntry(datePopup.settings)
              .addClass('date-popup-init')
            $(this).click(function() {
              $(this).focus();
            });
            break;
        }
      }
    });
  }
};