Question about cross references

Hello:

I am trying to achieve a corss ref in xslt and xsl:fo.

Here is wht the XML looks like:
<

list1 id="l1">
<text>

<para>Some text</para>

</text>

</list1>

<list1 id="l2">


<text>

<para>Some other text as in list <xref xrefid ="l1"/>A.</para>

</text>

</list1>

The desired result is:

1. Some text
2. Some other text as in list 1A.

But the current result is:
1. Some text
2. Some other text as in list l1A.


I want to get the reference from the xrefid and put it on the text.
The lists are formatted on the XSLT as eithr numbers(1,2) or (A,B)
etc.

Is there nay way this can be achieved thru XSLT.

Thanks in advance for your help.