How can I programmatically change A ZStyleSheet attribute (ZSSAttr) through dtml??? <dtml-with css_content> <dtml-with Body> <dtml-call "background.manage_changeProperties({'value' : new_bg})"> </dtml-with> </dtml-with> won't do, it gets me an authentication request (whatever my role), telling me I am not allowed to access "changeProperties". It's not a ZClass, so there is no propertysheet I would have to define, is that right? Through the management screen, everything works fine, but I want to change only a few attributes from a _dtml method_, and I simply don't know how to do it. I've given the method every available proxy role, and still. I really believe that my problem is not ZStyleSheet-specific, but could anyone out there who has successfully done _this_ tell me how to do it? Thx in advance, Danny