how to center a table horizontally on the page

[Biying Huang]

Hi, everyone:

I have a table which has dynamic table-width. I need to put it in the
center of the page horizontally so I put the fo:table in a fo:block and
set text-align="center" to the fo:block. But this doesn't work. The
table is always on the left. Here is my code:

<fo:block text-align="center">
      <fo:table>
         ....
      </fo:table>
</fo:block>

Thank you very much for any advices.

Biying