Here's a question for any Document Template experts out there: What is the mechanism which determines whether REQUEST is sent to a function evaluated using dtml-var? Recently I have been skulking around the management screen templates, and I noticed that somehow it is possible to write something like: (in manage_tabs.dtml) <dtml-var "HelpSys.button(HelpSys, product=option['help'][0], topic=option['help'][1])"> Here the 'button.dtml' HTMLFile object is being called with 'HelpSys' (the Help System instance) as a client and two keyword arguments, 'product' and 'topic'. That seems pretty clear. However, in helpURL, which is a subtemplate of the button template, looks like: <dtml-var SCRIPT_NAME>/Control_Panel/Products/<dtml-var product>/Help/<dtml-var topic> SCRIPT_NAME is part of the REQUEST namespace, as far as I can tell... but how is the REQUEST being passed to helpURL? I added some debugging output to App/special_dtml.py to visualize HTMLFile as it's being called, and sure enough it is getting passed a REQUEST. What's going on here? When I do stuff similar to the above in an expr, I always seem to have to explicitly pass along the namespace, a la: <dtml-var "myMethod(REQUEST=_)"> Enlightenment Please! --Brian