 
     timer = undefined
 
-    stop = ->
+    stopAnimation = ->
       clearInterval(timer)
       timer = undefined
       $("#play span")

          recipient = d.target.data[conf.nodeLabelAttr]
          donor = d.source.data[conf.nodeLabelAttr]

          flowLabel = shortenLabel(donor, 25) + " -> " + shortenLabel(recipient, 25)
          createTimeSeries(d3.select(tseries), data, flowLabel)



      if not TimeSeries.exists("node", i)
        tseries = TimeSeries.create("node", i)
        nodeLabel = d3.select(node).data()[0][conf.nodeLabelAttr]
        createTimeSeries(d3.select(tseries), data, shortenLabel(nodeLabel, 40))


    bubble = svg.selectAll("g.bubble")
