> Is it possible now, or planned for the future to examine 
> javasripts to successfuly mirror sites created with the 
> technology in subject?>"javascript:showMenu('Menu1')"

The engine can parse simple javascript code, NOT complex 
one, like functions or complex expressions. In this case, 
the 'Menu1' is a parameter to the function showMenu, and 
httrack will not be able to parse it, because it would have 
to embed a complete javascript engine, which is beyond the 
scope of the program. I have never seen any offline browser 
which would be able to fully parse javascript, however.