32. The computer program product of claim 31 further comprising: computer instructions, recorded on the storage device, for filtering the presentation grammar, in dependence upon the extracted structural elements, into a session grammar in the session document.
31. The computer program product of claim 30 wherein the filtering of the structured document comprises extracting, from the structured document, structural elements having classification identifiers corresponding to the second user classification of the session copy of the second user profile and writing the extracted structural elements into the session structured document in the session document.