12. A method for processing a structured document, the method comprising: manipulating and storing document data from the structured document according to user input; processing the document data to display different components of the processed document data in separate areas of a display pane; displaying content of the document data in a first area of the display pane, in a format appropriate for processing the content; and displaying an underlying structure of the document data in a second area of the display pane separate from the first area, in a graphical format appropriate for processing the underlying structure, wherein displaying an underlying structure of the document data in a second area includes displaying the underlying structure of the document data in a graphical format appropriate for processing the structure, the underlying structure of the document comprising one or more blocks, each block comprising a portion of document content, each block being associated with one or more in-line elements, and wherein displaying the underlying structure of the document also includes graphically displaying on a first sub-pane formatting information about in-line elements associated with a current block of the content displayed in the first area where a cursor is located; and graphically displaying on a second sub-pane structural information about blocks being displayed in the first area, the structural information comprising information representing how the blocks and inline elements organized within the underlying structure of the document.
12. A method for processing a structured document, the method comprising: manipulating and storing document data from the structured document according to user input; processing the document data to display different components of the processed document data in separate areas of a display pane; displaying content of the document data in a first area of the display pane, in a format appropriate for processing the content; and displaying an underlying structure of the document data in a second area of the display pane separate from the first area, in a graphical format appropriate for processing the underlying structure, wherein displaying an underlying structure of the document data in a second area includes displaying the underlying structure of the document data in a graphical format appropriate for processing the structure, the underlying structure of the document comprising one or more blocks, each block comprising a portion of document content, each block being associated with one or more in-line elements, and wherein displaying the underlying structure of the document also includes graphically displaying on a first sub-pane formatting information about in-line elements associated with a current block of the content displayed in the first area where a cursor is located; and graphically displaying on a second sub-pane structural information about blocks being displayed in the first area, the structural information comprising information representing how the blocks and inline elements organized within the underlying structure of the document. 16. The method of claim 12 , further comprising providing at least one menu for processing an in-line element of the current block of the first area when a marker associated with said in-line element is selected.