     User.current?.setPreference 'course', courseOption
 
   onChangeCourseInterval: ->
-    console.log 'VALUE: ', @el.find('#course-interval').val()
+    # console.log 'VALUE: ', @el.find('#course-interval').val()
     defaultValue = 5
     value = +@el.find('#course-interval').val()
 
-    console.log 'VALUE IS NUMBER: ', (typeof value)
+    # console.log 'VALUE IS NUMBER: ', (typeof value)
 
     # validate integer values
     unless (typeof value is 'number') and (value % 1 is 0) and value > 0 and value < 100
       value = defaultValue
       @el.find('#course-interval').val(value)
     else
-      console.log 'SETTING VALUE TO: ', value
+      # console.log 'SETTING VALUE TO: ', value
       @course.setRate value
 
   onChangeCourseIntervalViaSupTut: ->
-    console.log 'onChangeCourseIntervalViaSupTut(): '
+    # console.log 'onChangeCourseIntervalViaSupTut(): '
     defaultValue = 5
     value = +@el.find('#course-interval-sup-tut').val()
 


      # zoom in to new range
      @canvasGraph.zoomInTo(val, val+@zoomRanges[@zoomLevel])
      console.log 'zoomInTo(', val, ',', val+@zoomRanges[@zoomLevel], ')'

    
      # rebuild slider


    # mini course
    @course = new MiniCourse
    @el.find('#course-interval-setter').hide()

    # @verifyRate = 20

    @el.find('#no-transits').hide() #prop('disabled',true)
    @el.find('#finished-marking').hide() #prop('disabled',true)
