Get nodes related to the current page
<xsl:variable name="relations" select="umbraco.library:GetRelatedNodesAsXml($currentPage/@id)//relation [@parentId = $currentPage/@id]"/>
<ul>
<li class="header">Alternative languages</li>
<xsl:for-each select="$relations">
<xsl:variable name="url" select="umbraco.library:NiceUrl(@childId)" />
<xsl:if test="$url != ''">
<li><a href="{$url}"><xsl:value-of select="./node/@nodeName" /></a></li>
</xsl:if>
</xsl:for-each>
</ul>