Problem in search of solution

<xsl:template match="section_head">
	<xsl:for-each select="line">
		<fo:block font-weight="bold" font-size="12pt"
space-after.optimum="0.25in">
                	<xsl:value-of select="." />
                 </fo:block>
        </xsl:for-each>
</xsl:template>

I'm trying to produce something such that only the last line will have the
space-after.optimum attribute. Any ideas how can I do this?

Thanks in advance
Carlos

--
Carlos E. Araya
WebCT Project Coordinator - New Media Specialist
Alquist Center for Instrucctional Development
San Jose State University
1 Washington Square
San Jose, Ca 95192-0026

email	: araya@xxxxxxxx (prefered)		| Phone (408) 924 2859
	  elrond@xxxxxxxxxxxxxxxx		| Pager (408) 308 1793
Web	: http://www.sjsu.edu/depts/alquist/	| Fax   (408) 924 2437
	  http://valinor.sjsu.edu/~elrond/	

finger elrond@xxxxxxxxxxxxxxxx for PGP key
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