anchor.diff:  clockGroup = vis.append('svg:g').attr('transform', 'translate(' + cx + ', ' + cy + ')')
   
   render = function(data) {
  -  clockGroup.selectAll('hand').remove()
  -  clockGroup.selectAll('faces').remove()
  +  clockGroup.selectAll('.hand').remove()
  +  clockGroup.selectAll('.face').remove()
   
     mh = {}; mh.radius = bigRadius
     mf = {}; mf.radius = bigRadius
  
positive.code: }
  
  function makeGroup(params) {
    clockGroup.selectAll(params['name'])
              .data(data)
              .enter()
              .append('a').attr("xlink:href", '#')
  
negative.code:     }
    }
    makeGroup(faces)
  
    refresh()
  }
  
  /*
  setInterval(function() {
    data = fields()
    return render(data)
  }, 1000)
  */
  
  data = fields()
  render(data)
  
  $(".picker").on('change.spectrum', function (ev, tc) {
    d = ev.target.id.split('-')
  