2.3    Body Element and Document Types

The document body contains an element to indicate which type of content this document contains. Currently supported document types are:

� text documents

� drawing documents

� presentation documents

� spreadsheet documents

� chart documents

� image documents

All document types share the same content elements, but different document types place different restrictions on which elements may occur, and in what combinations. The document content is typically framed by a prelude and epilogue, which contain additional information for a specific type of document, like form data or variable declarations.