I think the HTML code navigator could be improved  by adding a feature to list element classes, ids, and form elements
so that they can be easily accessed.

The ids, classes and form elements could be group as follows:

+ Element IDs
  | - sidebar (div)
  | - header (div) 
  | - msgbox (div)
  | - contacts (table)

+ Element Classes
  | + box
  |   | -  div
  |   | -  div
  | + menu-top
  |   | -  ul
  | - menu-item (div)
  |   | -  li
  |   | -  li
  |   | -  li  
  | + hoveron
  |   | -  a
  |   | -  a  
  
+ Forms
  | + Form1 
  |   | -  recordid (hidden)
  |   | -  contactname (text)
  |   | -  address (text)
  |   | -  country (select)
  |   | -  notes (textarea)
  |   | -  submit (button)        
  |    
  | + Form2 
  |   | -  query (text)
  |   | -  search (button)        
       

This will make it easier for developers to navigate HTML code with a page.