anchor.diff:  $("#results").html("<%= j render 'results' %>");
   $("#flash").html("<%= j render 'flash_messages' %>");
   
  -(function() {
   
     var width = 760,
         height = 500,
  
positive.code:     // renderMenu()
  
    var partition = d3.layout.partition()
        .sort(null)
        .value(function(d) {
          return d.parent.followers.total; });
  
    var arc = d3.svg.arc()
        .startAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x))); })
  
negative.code:   var x = d3.scale.linear()
        .range([0, 2 * Math.PI]);
  
    var y = d3.scale.linear()
        .range([0, radius]);
  
    var color = d3.scale.category20c();
  