[Zope] passing values from dtml->dtml; http quote?

[John Hunter]

I have some arguments that I want to pass from one DTML method to
another.  In the source DTML document, the values are in the REQUEST
object.  I could pass them to the destination document with the CGI
syntax

    <a href=print_eeg_description?id=<dtml-var id>&fname=<dtml-var eeg_url>&date=<dtml-var date>>description</a>

where print_eeg_description is the destination DTML document.  The
problem I am encountering is one of the vars has a space in it; I need
something like HTTP quote.

But this also makes me wonder if there is a better way to pass
variables between DTML documents.

Thanks,
John Hunter

Zope 2.4.1