<xsl:call-template name="MailtoUser"> <xsl:with-param name="Person" select="@Created"/> </xsl:call-template>
<xsl:template name="MailtoUser"> <xsl:param name="Person"/> <xsl:variable name="Email" select="substring-before(substring-after($Person, "sip='"), "' id=")"/> <a href="mailto:{$Email}"> <xsl:value-of select="$Email" /> </a> </xsl:template>