[Zope] Newbie question: http-cache, caching elements

[Fernando Fuente]

hi,

does anyone know how to cache objects like gifs by a http-cache? my problem
is that i have a navigation (constructed via tables) that is set up and
changes dynamically every time a link is hit. this table includes a small
picture. i think with the standard http-cache i can only cache "finished"
html sites.  therefore the picture is loaded every time i click on links
that have not been clicked on before. i would like to cache this special
element explicetly. can it be done?

thanks a lot,

fernando