The standard entry point of this site is the index page, where a choice between three languages is offered :

•  French 
•  English 
•  German 
  
  

Each language choice leads to a menu composed of six main items :

• A  map of the site 
  
  
• An  iconography 
  • a  cartoon 
  • a  recent picture 
  • a  video 
    
    
• A  curriculum vitae 
  
  
• A  bibliography 
  • a recent unpublished text  About Keyboards, Schools and Paper 
  • a set of PDF-formated  downloadable publications 
    
    
• Fifteen  demonstrations  :
  • 4 graphical demonstrations :
    •  the cat's dream 
    •  a summer storm 
    •  a fire place 
    •  about time 
  • 4 educational presentations :
    •  introduction to Computer Assisted Instruction 
    •  elements of methodology of CAI development 
    •  the 3 doors problem 
    •  the Barnum effect 
  • 3 cellular automata :
    •  the game of Life 
    •  WireWorld 
    •  Langton's Ant 
  • 2 interactive games :
    •  a brainteaser  : connect 9 points with 4 lines
    • the first interactive version of Conway's  digital deletions  to appear on the Web
  • 2 unclassifieds :
    • a downloadable programme :  GT. Software for Generalizability Studies 
    •  a poetry machine 
      
      
• this about page rounds up the site.

The 4.01 HTML code of these pages was hand-written and validated with :

•   Net-Mechanic's HTML Toolbox,
  
  
•   Web Design Group HTML Validator,
  
  
•   the CSE HTML Lite Validator 6.5,
  
  
•   the standard W3C validator,
  
  
•   and SourceForge's Tidy validator.
  
  

  Cascading Style Sheets (CSS 2.0) were also validated.

JavaScript (1.0) is used to generate some effects as rollover buttons and, of course, for the demonstrations. A small test on the entry page emits a warning when JavaScript is disabled, prompting the visitor to enable it.

As JavaScript does not keep values of variables when loading a new page, a session-only cookie is used to keep track of the visited pages in the menu.

The use of style sheets with a liquid design covers almost all screen resolutions that can actually be met.

• The minimum resolution supported is 800 by 600 pixels.
  
  
• Best results are obtained with a resolution of 1024 by 768 pixels
  
  

All fonctionnalities of these pages were tested and found to be fully compatible with at least three of the major browsers :

•   (version 4 or above)
  
  
•   (version 6 or above)
  
  
•   (version 0.9 or above)
  
  

This site is only partially compatible with

•   (version 9)
    earlier versions of Opera have a Flash transparancy problem
    version 9 still has problems with visibility issues

In its actual form, this site consumes somw 20 MB (source code, style sheets, JavaScript, video, images and PDF-documents included).

•   host this site, and
  
  

Referencing of this site has been done through the free services of :

•   for the English part;
  
  
•   for the French part.

And, in order to make the web a safer place for children :

•   this site is ICRA-labelled.