I have an external python function, who's header starts like this: def Toggle(self, var='a', optvar=None,trueval=None, falseval=None, REQUEST=None,RESPONSE=None): "Toggle Test based on cookies and URL" (kindly ignore line wrapping) I call it from dhtml, like this: <!--#call "Toggle(var='TogA',optvar='rowcount',trueval=99,falseval=5, REQUEST=REQUEST,RESPONSE=RESPONSE)"--> (again, no wrapping) If I don't use REQUEST=REQUEST,RESPONSE=RESPONSE I get read-only buffer, class exception. Is this the way it's expected to function? I can also call this function as <!--#if "Toggle(var='TogA', REQUEST=REQUEST,RESPONSE=RESPONSE)"--> Same deal, must have REQUEST. Is there any way I can avoid explicitely passing REQUEST and RESPONSE? Brad Clements, bkc@murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com ICQ: 14856937 We must come down from our heights, and leave our straight paths, for the byways and low places of life, if we would learn truths by strong contrasts; and in hovels, in forecastles, and among our own outcasts in foreign lands, see what has been wrought upon our fellow-creatures by accident, hardship, or vice. - Richard Henry Dana, Jr. 1836