Hi, just to inform you, that I have finished l2h (http://www.volny.cz/cepls/ps-pdf/l2h-1.8-1.noarch.rpm (3.9k) or l2h-1.8.tar.gz (2.3k) in the same directory) to the state where it is suitable to be included in LyX via \html_command. Certainly, that it is NOT a replacement of tth (or LaTeX2HTML etc.), but it is only shell for tth to prepare some parametrs and postprocess result to be better HTML (so that not everybody see on first glimpse, that it was originally LaTeX; just on the second one :-). Have a nice day Matej