anchor.diff:      form.nodes.add(new Text("Instructions"));
       addButton = new ButtonElement();
       addButton.type = "button";
  -    addButton.on.click.add(addInstructionItem);
  +    addButton.onClick.listen(addInstructionItem);
       addButton.text = "+";
       instructionList = new OListElement();
       form.nodes.add(instructionList);
  
positive.code:     de.nodes.add(new Element.html("<input type=\"text\" name=\"instructions[]\">"));
      de.nodes.add(addButton);
      instructionList.append(de);
      
      SubmitButtonInputElement submit = new Element.html("<input type=\"submit\" value=\"Create Game\">");
      form.nodes.add(submit);
      form.on.submit.add((e) {submit.disabled = true;});
    }
    
    void addSupplyItem(Event e) {
      DivElement de = new Element.html("<div></div>");
      Element newBox = new Element.html("<input type=\"text\" name=\"supplies[]\">");
  
negative.code: 
  class submit_game_form {
    DivElement content;
    
    submit_game_form() {
      content = new Element.html("<div></div>");
  