First I want to say many thanks to Xavier and Yann for the 
great application and all the work you have put in to it.

Can HTTrack (or any program) copy sites with applets? I 
have been trying to copy this web page 
<http://www.colorado.edu/physics/2000/waves_particles/index.h>
tml and I can't get any program to copy it so that I can 
run the spectrum applet on my computer. Is it possible to 
copy this page to my computer and have the spectrum applet 
still work?
Thanks in advance.