newsfile:
<xsl:choose>
<xsl:when test="@title"><xsl:value-of select="@title"/></xsl:when>
<xsl:when test="../@title"><xsl:value-of select="../@title"/></xsl:when>
<xsl:otherwise>
<xsl:message terminate="yes">Event with no title!</xsl:message>
</xsl:otherwise>
</xsl:choose>