>  Hi, thanks for that email.  It was very helpful.  I was looking at some of 
>  the old recursive displays, and it seems that a lot of people had this 
>  "printf()" function inside their recursions.  Do you know what printf is or 
>  does?  There also seem to be a lot of parameters involved with that 
>  function... 
>   
>  Thanks. 
>   
>  Michael 

Never mind printf()  :)

They were writtin in a different language, C  :)