Output CDATA tags

Inside my XSL I have a templates that just puts an HTML fragment into
XML CDATA comments.

	<xsl:template match="td" mode="markup">
		<xsl:text><![CDATA[</xsl:text>
		<xsl:copy-of select="child::node()"/>
		<xsl:text>]]></xsl:text>
	</xsl:template>

What I want is that a
<td>
	<span>foo...<br/></span
</td>

is transformed into a
<td>
	<![CDATA[
	<span>foo...<br/></span
	]]>
</td>

But all I get is:
<td>
	</xsl:text><xsl:copy-of select="child::node()"/> <xsl:text>
</td>

What am I doing wrong?

Robert