anchor.diff:      },
       endAngle: function(number) {
         return scaleHours(number) + handSpan
  -    }
  -  }
  -
  -  mf = {
  -    radius: bigRadius,
  -    startAngle: function(number) {
  -      return (pi * 2) + scaleMins(number) - (handSpan + margin)
  -    },
  -    endAngle: function(number) {
  -      return scaleMins(number) + (handSpan + margin)
       }
     }
   
  
positive.code:   clockGroup.selectAll('hand').remove()
    clockGroup.selectAll('faces').remove()
  
    mh = {
      radius: bigRadius,
      startAngle: function(number) {
        return scaleMins(number) - handSpan
      },
      endAngle: function(number) {
        return scaleMins(number) + handSpan
      }
    }
  
    hh = {
  
negative.code:               return d.unit + '-' + params['name']
              })
              .attr('opacity', 0.7)
  }
  
  function limit(number) {
    if (number > 53) {
      return 53
    }
    return number
  }
  
  function refresh() {
  