 
             time = new Date(time).getTime()
             column = [ time, score ]
-            act_histogram.push column
+            @act_histogram.push column
 
             data_idx += 1
 
         colors = ["#00c0c0"]
-        $.plot $(@el), [ act_histogram ],
+
+        @plot_options =
             colors: colors
             series:
                 bars:

        @end_time = options.end_time
        @render()

    render: ->
        score_list = @scores.models

        if score_list.length == 0
            return @

        act_histogram = []

        data_idx = 0
        while data_idx < score_list.length

                    bottom: 1
                    left: 0
                    right: 0

        @draw_plot()

        $(window).resize =>
            @draw_plot()
    
        return @
