[Zope] Best Practice for including Javascript in Zope Applications

Hello, I'm new to developing for zope, and I have a quick question regarding some best practices when using Javascript in zope applications. I would like to use Ext JS (http://www.extjs.com/ ) in an application that I am writing. It is a fairly extensive library, so I didn't really want to copy/paste every single file into a dtml method. I looked all over the place for some discussion on this subject, but only found things relating to plone (which apparently has a javascript registry); however, I wish to stay away from plone for this particular application. What should I do to use these libraries? Is there a canned solution for this sort of thing? Thank you much! -Matt