[Zope] Zope pdf's on the fly

[Dennis Allison]

Microsoft's IE uses non-standard techniques to determine the type of a 
file.  To bend it to our will, we've found that the generation program
needs to be named with a '.pdf' extension.  This, of course, makes it a 
bit difficult to embed in a dtml call.  (As a form action, it works...)

What I have is an external method that manages the interfact to HTMLDOC
by building a html file, sending it to HTMLDOC, gathering the result, and 
returning it with appropriate headers to the client.

If I use a form to set up parameters to the external method and 

	<form action="doit.pdf()">
	..
	</form>

it works fine.  Of course, 

	<dtml-varB expr="doit.pdf()">

doesn't.