XSL-FO: How to put a determinated page in landscape format if a c onditiion is true

I have a XSL program that realize a conversion between an XML file to PDF
file.
Now all the pages in the PDF are in vertical position (portrait).
 
            When a determinate element is treated, this generates a table
with information.
But now I want when this element is found, that page or the table with the
information have to put in horizontal position (landscape).
            I found a property: reference-orientation="90" and I put on the
table, but the FOP say me that the property reference-orientation is not yet
implemented.
 
Have I explained the problem well?
Could Anyone help me?