latex2html: thumbnail and postscript

[Dave Musgrave]

I am also trying to get a thumbnail inline figure that will link to a
better postscript figure.  I have been using something like:

\newcommand{\figthumbcapl}[3]{\begin{figure}
  \htmlimage{thumbnail=.4,align='center',extrascale=2}
  \htmlborder{4}
  \includegraphics[width=6in]{#1}
  \caption[#2]{#3}
  \end{figure}}

but if then use:
\figthumbcapl{dynamic_height.ps}{Dynamic topography in the N. Pacific
subarctic gyre.}{\label{fig:dyn_ht}The mean flow is illustrated by
contouring the dynamic height
(dynamic topography). The subarctic and subtropical gyres are clearly
illustrated as well as the Kuroshio, Oyashio, California, and Alaska
Stream currents.}


then the link is to a gif file and seriously degrades the image.

Any thoughts?

Thanks,
Dave