Alternate page-sequences

Hi All!

I have to create a report that has diferrent flows on odd and even pages. I am 
trying to create two page sequences and alternate them.
Here is a stylesheet (simplified):

        <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>

                <fo:layout-master-set>
                        <fo:simple-page-master page-height="297mm" 
page-width="210mm"
                                        margin-top="5mm"
                                        margin-bottom="5mm"
                                        margin-left="15mm"
                                        margin-right="5mm"
                                        master-name="OddPageMaster">
                                <fo:region-body margin-top="1cm" 
margin-bottom="2cm"/>
                                <fo:region-before extent="1cm"/>
                                    <fo:region-after extent="2cm"/>
                        </fo:simple-page-master>

                        <fo:simple-page-master page-height="297mm" 
page-width="210mm"
                                        margin-top="5mm"
                                        margin-bottom="5mm"
                                        margin-left="15mm"
                                        margin-right="5mm"
                                        master-name="EvenPageMaster">
                                <fo:region-body margin-top="4cm" 
margin-bottom="2cm"/>
                                <fo:region-before extent="4cm"/>
                                    <fo:region-after extent="2cm"/>
                        </fo:simple-page-master>

                        <fo:page-sequence-master master-name="PageMaster">
                                <fo:repeatable-page-master-alternatives>
                                        <fo:conditional-page-master-reference 
master-reference="OddPageMaster"
                                                                
page-position="any" odd-or-even="odd" />
                                        <fo:conditional-page-master-reference 
master-reference="EvenPageMaster"
                                                                
page-position="any" odd-or-even="even" />
                                </fo:repeatable-page-master-alternatives>
                        </fo:page-sequence-master>
                </fo:layout-master-set>
                

                <fo:page-sequence master-reference="OddPageMaster">
                        <fo:flow flow-name="xsl-region-body">
                                <xsl:for-each select=".......">
                                        <xsl:for-each select="......">
                                                        <fo:block>odd</fo:block>
                                        </xsl:for-each>
                                </xsl:for-each>
                        </fo:flow>
                </fo:page-sequence>
                

                <fo:page-sequence master-reference="EvenPageMaster">
                        <fo:flow flow-name="xsl-region-body">
                                <xsl:for-each select=".......">
                                        <xsl:for-each select="......">
                                                        
<fo:block>even</fo:block>
                                        </xsl:for-each>
                                </xsl:for-each>
                        </fo:flow>
                </fo:page-sequence>
        </fo:root>

But it doesn't work.
 First, I get all pages for OddPageMaster (on both odd and even pages) and then 
I get the output for EvenPageMaster. What I want is to alternate them.

Any suggestion will be very appreciated.
Thanks,
Roxana

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