     @currentCohort = null
     @currentParticipant = null
     @Geordi.UserStringGetter.currentUserID = null
-  ###
-  when we first get participant, and the user has not started experiment in a previous sessions, we'll need to log it to Geordi
-  ###
-  #checkForExperimentStartAndLogIt: (participant) ->
-  #  if @ACTIVE_EXPERIMENT == "SerengetiBlanksExperiment1"
-  #    if participant.blank_subjects_seen.length==0 && participant.non_blank_subjects_seen.length==0
-  #      @Geordi.logEvent 'experimentStart'
-  ###
-  when we first discover that a user has ended the experiment, we log it to Geordi
-  ###
-  #checkForExperimentEndAndLogIt: (participant) ->
-  #  if @ACTIVE_EXPERIMENT == "SerengetiBlanksExperiment1"
-  #    if !experimentCompleted && participant? && !participant.active && participant.blank_subjects_available && participant.blank_subjects_available.length==0 && participant.non_blank_subjects_available && participant.non_blank_subjects_available.length==0
-  #      @experimentCompleted = true
-  #      @Geordi.logEvent 'experimentEnd'
-  ###
-  when we get participant, we need to log to Geordi if the user's was excluded
-  ###
-  #checkForExcludedAndLogIt: (participant) ->
-  #  if @ACTIVE_EXPERIMENT == "SerengetiBlanksExperiment1"
-  #    if !@excludedReason? && participant.excluded
-  #      # if not previously logged, log it.
-  #      @excludedReason = participant.excluded_reason
-  #      @Geordi.logEvent {
-  #        type: 'experimentExcluded'
-  #        relatedID: participant.excluded_reason
-  #        data: {
-  #          excludedReason: participant.excluded_reason
-  #        }
-  #        subjectID: @classification.subject.zooniverseId
-  #      }
-  ###
-  This method will contact the experiment server to find the participant(experimental data) for this user in the specified experiment
-  ###
-  #getParticipant: () ->
-  #  @Geordi.UserStringGetter.currentUserID = "(unknown)"
-  #  @Geordi.UserStringGetter.getUserIDorIPAddress()
-  #  .then (data) =>
-  #    if data?
-  #      @Geordi.UserStringGetter.currentUserID = data.toString()
-  #  .fail =>
-  #    @Geordi.UserStringGetter.currentUserID = "(anonymous)"
-  #  .always =>
-  #    eventualParticipant = new $.Deferred
-  #    if @ACTIVE_EXPERIMENT?
-  #      now = new Date().getTime()
-  #      if @lastFailedAt?
-  #        timeSinceLastFail = now - @lastFailedAt.getTime()
-  #      if @lastFailedAt == null || timeSinceLastFail > @RETRY_INTERVAL
-  #        try
-  #          $.get(@EXPERIMENT_SERVER_URL+ 'experiment/' + @ACTIVE_EXPERIMENT + '?user_id=' + @Geordi.UserStringGetter.currentUserID)
-  #          .then (participant) =>
-  #            @checkForExcludedAndLogIt participant
-  #            @checkForExperimentEndAndLogIt participant
-  #            @currentCohort = participant.cohort
-  #            if !@currentParticipant?
-  #              @Geordi.logEvent 'experimentResume', null, Subject.current?.zooniverseId
-  #              @checkForExperimentStartAndLogIt participant
-  #            @currentParticipant = participant
-  #            eventualParticipant.resolve participant
-  #          .fail =>
-  #            @lastFailedAt = new Date()
-  #            @Geordi.logEvent {
-  #              type: "error"
-  #              errorCode: "500"
-  #              errorDescription: "Couldn't retrieve experimental participant data"
-  #            }
-  #            eventualParticipant.resolve null
-  #        catch error
-  #          eventualParticipant.resolve null
-  #      else
-  #        eventualParticipant.resolve null
-  #    else
-  #      eventualParticipant.resolve null
-  #    eventualParticipant.promise()
+
   ###
   This method will contact the experiment server to find the cohort for this user in the specified experiment
   ###

    eventualCohort = new $.Deferred
    if @ACTIVE_EXPERIMENT?
      now = new Date().getTime()
      if @lastFailedAt?
        timeSinceLastFail = now - @lastFailedAt.getTime()
      if @lastFailedAt == null || timeSinceLastFail > @RETRY_INTERVAL
        try
          $.get(@EXPERIMENT_SERVER_URL+'experiment/' + @ACTIVE_EXPERIMENT + '?userid=' + @Geordi.UserStringGetter.currentUserID)
          .then (participant) =>
            @currentCohort = participant.cohort
            @currentParticipant = participant
            eventualCohort.resolve participant.cohort
          .fail =>
            @lastFailedAt = new Date()
            @Geordi.logEvent {
              type: "error"
              errorCode: "500"
              errorDescription: "Couldn't retrieve experimental cohort data"
            }
            eventualCohort.resolve null
        catch error
          eventualCohort.resolve null
      else
        eventualCohort.resolve null
    else
      eventualCohort.resolve null
    eventualCohort.promise()

  Define the active experiment here by using a string which exists in http://experiments.zooniverse.org/active_experiments
  If no experiments should be running right now, set this to null, false or ""
  ###
  ACTIVE_EXPERIMENT: "SerengetiMessagingExperiment2"
  #ACTIVE_EXPERIMENT: "SerengetiBlanksExperiment1"
  ###
  The URL of the experiment server to use
