--- a/ckanext/ga_report/public/scripts/ckanext_ga_reports.js
+++ b/ckanext/ga_report/public/scripts/ckanext_ga_reports.js
@@ -2,19 +2,25 @@
 CKAN.GA_Reports = {};
 
 CKAN.GA_Reports.render_rickshaw = function( css_name, data, mode, colorscheme ) {
+    var graphLegends = $('#graph-legend-container');
+
     if (!Modernizr.svg) {
         $("#chart_"+css_name)
           .html( '<div class="alert">Your browser does not support vector graphics. No graphs can be rendered.</div>')
-          .css('height','auto');
+          .closest('.rickshaw_chart_container').css('height',50);
+        var myLegend = $('<div id="legend_'+css_name+'"/>')
+          .html('(Graph cannot be rendered)')
+          .appendTo(graphLegends);
         return;
     }
-    var graphLegends = $('#graph-legend-container');
     var myLegend = $('<div id="legend_'+css_name+'"/>').appendTo(graphLegends);
 
     var palette = new Rickshaw.Color.Palette( { scheme: colorscheme } );
     $.each(data, function(i, object) {
         object['color'] = palette.color();
     });
+    // Rickshaw renders the legend in reverse order...
+    data.reverse();
 
     var graphElement =  document.querySelector("#chart_"+css_name);
 
@@ -35,15 +41,11 @@
         element: document.querySelector('#legend_'+css_name),
         graph: graph
     } );
-    var hoverDetail = new Rickshaw.Graph.HoverDetail( {
+    var shelving = new Rickshaw.Graph.Behavior.Series.Toggle( {
       graph: graph,
-      formatter: function(series, x, y) {
-        var date = '<span class="date">' + new Date(x * 1000).toUTCString() + '</span>';
-        var swatch = '<span class="detail_swatch" style="background-color: ' + series.color + '"></span>';
-        var content = swatch + series.name + ": " + parseInt(y) + '<br>' + date;
-        return content;
-      }
+      legend: legend
     } );
+    myLegend.prepend('<div class="instructions">Click on a series below to isolate its graph:</div>');
     graph.render();
 };
 
@@ -53,24 +55,29 @@
    * Sparkline graphs should be drawn.
    * Note that they cannot be drawn sooner.
    */
+  var created = false;
   $('a[href="#totals"]').on(
     'shown', 
-    function() {
-      var sparkOptions = {
-        enableTagOptions: true,
-        type: 'line',
-        width: 100,
-        height: 26,
-        chartRangeMin: 0,
-        spotColor: '',
-        maxSpotColor: '',
-        minSpotColor: '',
-        highlightSpotColor: '000000',
-        lineColor: '3F8E6D',
-        fillColor: 'B7E66B'
-      };
-      $('.sparkline').sparkline('html',sparkOptions);
-    }
+      function() {
+        if (!created) {
+          var sparkOptions = {
+            enableTagOptions: true,
+            type: 'line',
+            width: 100,
+            height: 26,
+            chartRangeMin: 0,
+            spotColor: '',
+            maxSpotColor: '',
+            minSpotColor: '',
+            highlightSpotColor: '#000000',
+            lineColor: '#3F8E6D',
+            fillColor: '#B7E66B'
+          };
+          $('.sparkline').sparkline('html',sparkOptions);
+          created = true;
+        }
+        $.sparkline_display_visible();
+      }
   );
 };
 
@@ -93,9 +100,22 @@
       }
       legend_name = '#legend_'+legend_name;
       $('#graph-legend-container > *').hide();
+      $('#graph-legend-container .instructions').show();
       $(legend_name).show();
     }
   );
+};
+
+CKAN.GA_Reports.bind_month_selector = function() {
+  var handler = function(e) { 
+    var target = $(e.delegateTarget);
+    var form = target.closest('form');
+    var url = form.attr('action')+'?month='+target.val()+window.location.hash;
+    window.location = url;
+  };
+  var selectors = $('select[name="month"]');
+  assert(selectors.length>0);
+  selectors.bind('change', handler);
 };
 
 /*