[Twisted-web] form attributes in an html file

Hi, I need some help. I have an HTML file in my project which contains a form. I would like that the attributes 'action' of my form is filled as loaders.stan which is done like this: tags.form(pattern='freeform-form', action=slot('form-artion'))[ ... ] I looked at the customform.tac example which uses the loaders.xmlstr and filled the attributes this way: <form nevow:pattern='freeform-form'> ... </form> I've done the same thing in my HTML file and that doesn't works. I was wondering if there's another way to do this. Vicky