nsIMarkupDocumentViewer in Firefox 3.6a1pre

 Disable entire author style level (including HTML presentation hints) */

 bidiCharacterSet: whether to force the user's character set
                   1 - use the document character set
                   2 - use the character set chosen by the user

 bidiControlsTextMode: the order of bidirectional text in form controls.
                       1 - logical
                       2 - visual
                       3 - like the containing document

 bidiNumeral: the type of numerals to display. 
              1 - depending on context, default is Arabic numerals
              2 - depending on context, default is Hindi numerals
              3 - Arabic numerals
              4 - Hindi numerals

 Use this attribute to access all the Bidi options in one operation

 bidiSupport: whether to use platform bidi support or Mozilla's bidi support
              1 - Use Mozilla's bidi support
              2 - Use the platform bidi support
              3 - Disable bidi support

 Options for Bidi presentation.

 Use these attributes to access the individual Bidi options.


 bidiTextDirection: the default direction for the layout of bidirectional text.
                    1 - left to right
                    2 - right to left

 bidiTextType: the ordering of bidirectional text. This may be either "logical"
 or "visual". Logical text will be reordered for presentation using the Unicode
 Bidi Algorithm. Visual text will be displayed without reordering. 
               1 - the default order for the charset
               2 - logical order
               3 - visual order

 The amount by which to scale all lengths. Default is 1.0. */

 The amount by which to scale all text. Default is 1.0. */