20. The computer program product of claim 17 wherein means, recorded on the recording device, for creating the presentation grammar for the structured document comprises: means, recorded on the recording device, for identifying a content type of the original document; means, recorded on the recording device, for selecting, in dependence upon the content type, a full presentation grammar from among a multiplicity of full presentation grammars; and means, recorded on the recording device, for filtering the full presentation grammar into the presentation grammar for the structured document in dependence upon the structural elements of the structured document.
24. The computer program product of claim 20 wherein the full presentation grammar comprises a multiplicity of grammar elements for the content type, wherein each grammar element includes: an identifier of a structural element; a key phrase for invoking the presentation action; and a presentation action identifier representing the presentation action.