fo:inline superscript

I expect the following to give me a footnote number as a superscript but it
doesn't. I get the footnote number I want but not as  a superscript.


	<xsl:template match="method">
		<fo:table-cell border-width="0.5mm">
			<fo:block font-size="7pt">
				<xsl:value-of select="."/>
				<fo:inline font-size="5"
baseline-shift="super" >
					<xsl:value-of
select="../method-footnote"/>
				</fo:inline>
			</fo:block>
		</fo:table-cell>
	</xsl:template>

Any suggestions or comments appreciated.

Dave


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