anchor.diff:      ,start_highlight: true
       ,syntax: "<%=@manifest[:language]-%>"	
       ,toolbar: "search, go_to_line, undo, redo, select_font, reset_highlight, help"
  -    ,is_multi_files: true
  +    ,is_multi_files: false
       ,EA_load_callback: "editAreaLoaded"
       ,EA_file_close_callback: "editAreaFileClose"
       ,show_line_colors: true
  
positive.code:   {
      $(id).value = editAreaLoader.getFile('tabbed_files', id).text;
    }
    return true; 
  }
  
  function editAreaTabbedLoad(name)
  {
    editAreaLoader.openFile(
      'tabbed_files',
      { id: name, text: $(name).value, title: name });
  }
  
  function preRunTests()
  
negative.code: }
  
  var closing_old_run_tests_output = false
  var current_file_name = false
  
  function editAreaFileClose(closing)
  {
  