anchor.diff:  #import('dart:html');
   
   class EntityContainer {
  -  
     InputElement symbolFrom;
     InputElement symbolTo;
     LabelElement symbolToLabel;
  
positive.code: 
    BaseElement base;
    Map<String, Object> _scopes;
    Element _fragment;
  
    var content;
    var entities;
  
    var container;
  
    Layout(this.entities) : _scopes = new Map<String, Object>() {
      init();
      
      
      _fragment = new DocumentFragment();
      container = new Element.html('<div>');
      _fragment.elements.add(container);
  
      final EntityContainer entityContainer = new EntityContainer(entities);
      container.elements.add(entityContainer.root);
  
      final EntityViewer entityViewer = new EntityViewer(entities);
      container.elements.add(entityViewer.root);
      document.body.elements.add(_fragment);
      
      entityContainer.addUiHandler();
  
negative.code:   TableSectionElement tbody;
    TableCellElement totalSymbols;
    TableCellElement decimalRange;
    
    void refreshSymbolList() {
      final InputElement symFrom = document.body.query('#symbolFrom');
  