Using imageobject twice on title page fails (FO)

Hi group.

 

I want to display an image (mediaobject) twice on my book titlepages, first on the recto page and second on the following verso page.

 

I made a simple extension to the “titlepage.templates.xml” file as proposed by Bob. Here is an XML snippet:

 

<t:titlepage-content t:side="recto">

          <mediaobject

                  t:predicate="[position() = 1]"/>

…

 

<t:titlepage-content t:side="verso">

…

          <mediaobject

                  space-before="1.5in"

                  t:predicate="[position() = 1]" />

…

 

When I do this with other elements (i.e. <author>), everything is fine. But if I do this with an image, the FOP complains about a previously used ID:

 

“javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: Property ID "N4000E" (found on "fo:block") previously used; ID values must be unique within a document!”

 

I checked the FO-Output and indeed found the image block twice with the same ID (“N4000E”). For the other elements there is no problem, because they don’t get an ID (i.e. author).

 

Question: How can I reuse my image more than once on the recto/verso title page.

 

I could insert a second imageobject (same file) and fetch it with t:predicate="[position() = 2]” as a work around. But somehow I want to keep my code easy and clean.

 

Can anyone help? Thanks.

 

Ben