accessing functions??

gistfile1.js

Ext.define('CustomApp', {
    extend: 'Rally.app.App',
    componentCls: 'app',

    launch: function() {

      var calculateCycleTime: function(acceptedDate, inProgressDate) {
        var cycleTime = Math.round(Ext.Date.getElapsed(acceptedDate,inProgressDate) / 1000 / 60 / 60 / 24);
        if (cycleTime === 0) cycleTime = 1;
        return cycleTime;
      }

      Ext.create('Rally.data.WsapiDataStore', {
          model: 'User Story',
          autoLoad: true,
          limit: Infinity,
          listeners: {
            load: function(store, data, success) {
              Ext.Array.each(data, function(story) {
                var id;
                var inProgressDate;
                var acceptedDate;
                var cycleTime;
                var kanbanState;
                kanbanState = story.get('KanbanState');

                if (kanbanState === 'Accepted') {
                  id = story.get('FormattedID');
                  inProgressDate = story.get('InProgressDate');
                  acceptedDate = story.get('AcceptedDate');
                  cycleTime = calculateCycleTime(acceptedDate, inProgressDate);

                  console.log('ID: ' + id + '  cycleTime: ' + cycleTime);
                }

              });
            }
          }
      });
    }

});