[Zope] calling javascript residing on the filesystem

Hi all, I am tryng to call some javascript code from a pure python product and I would like not to import into the ZOOdb the js files (they are quite a lot as the js code base implements a rather complex client side app). My question, obviously, is: how can I call the js through http in the src attribute of the script tag ? Or in other words: how can i map a js file on the filesystem to an URL known to Zope ? Sorry if this question has been answered in the past, but I didn't find anything on the mailing list archives and in the other usual Zope resources. TIA, --peppo