                        d3.select("rect#mouseover1").remove())
                       
 
+    # right image panel
     panels[i][1].append("g").attr("id", "n_imgrect_#{i}")
              .selectAll("empty")
              .data(llList[i])

  yScaleImg = []
  zScaleImg = []
  for i in [0...data.nll.length]
    d3.select("div#heatmap_fig")
      .append("h3")
      .text("Chromosome #{i+1}")


  # dimensions
  w = 300 # width of heat maps
  pad = {left:60, top:40, right:25, bottom: 35, inner: 0}
  h = w # height of heat maps
  h2 = (h - pad.top - pad.bottom)/2 # height of line plot

