<xsl:value-of select="concat($BaseURL, $picture-element/@src)"/>
</link>
<pubDate>
- <xsl:value-of select="php:functionString('str_to_gmdate', substring-after($picture-id, 'strip_enlarged_'))"/>
+ <xsl:value-of select="php:functionString('Tweeper::str_to_gmdate', substring-after($picture-id, 'strip_enlarged_'))"/>
</pubDate>
<description>
<xsl:text disable-output-escaping="yes"><![CDATA[</xsl:text>