anchor.diff:  
   # Add a DOM element with associated metadata to be tracked by Xray
   Xray.add = (el, info = {}) ->
  -  unless !el || el.length == 0 || Xray.findElement(el)
  -    Xray.elements.push new Xray.Element(el, info)
  +  unless !el || el.length == 0 || Xray.findSpecimen(el)
  +    Xray.specimens.push new Xray.Specimen(el, info)
   
   # Remove a DOM element from Xray
   Xray.remove = (el) ->
  -  if el instanceof Xray.Element
  -    Xray.elements.splice(Xray.elements.indexOf(el), 1)
  +  if el instanceof Xray.Specimen
  +    Xray.specimens.splice(Xray.specimens.indexOf(el), 1)
     else
  -    Xray.remove Xray.findElement(el)
  +    Xray.remove Xray.findSpecimen(el)
   
  -Xray.findElement = (el) ->
  +Xray.findSpecimen = (el) ->
     el = el[0] if el instanceof jQuery
  -  for element in Xray.elements
  +  for element in Xray.specimens
       return element if element.el == el
     null
   
  
positive.code:     $('head').append @$style
      $('body').append @$overlay
      @shownBoxes = []
      Xray.addTemplateElements()
      for element in Xray.elements
        continue unless element.isVisible()
        element.makeBox()
        element.$box.css('z-index' : 10000 + element.bbox.top)
        @shownBoxes.push element.$box
        $('body').append element.$box
  
  
negative.code: #       of the template.
  #
  # 2. After DOM is loaded, go through XrayData, hooking into Backbone.View to
  #    add view instances to Xray.specimens as they're instantiated. NOTE: This
  #    means Xray has to be included into a page before any app code runs so its
  #    DOM loaded callback can happen first. Not a big deal.
  #
  # 3. Xray is invoked via keyboard shortcut
  #    a. Go through the DOM looking for template script tags. Create Elements
  #       representing them. (regenerate on each invocation?)
  #    b. Turn created Xray.specimens into boxes and display them in the overlay.
  
  window.Xray = {}
  
  # All collected Xray.Specimens
  Xray.specimens = []
  
  # Initialize Xray - hook into Backbone.View to create Xray.specimens as the views
  # are instantiated.
  Xray.init = ->
    return if Xray.initialized
  