How to check whether any of child node with particular

Hi All,

I run into a problem where I'm not able to check  whether any of child node
with particular tag name has empty String value.  

Here's the XML:

	<ATTACHMENT>
		<ATTACHMENT_NAME></ATTACHMENT_NAME>
		<ATTACHMENT_LINK> http://yahoo.com </ATTACHMENT_LINK>
		<ATTACHMENT_NAME> link </ATTACHMENT_NAME>
		<ATTACHMENT_LINK> http://msn.com </ATTACHMENT_LINK>
	</ATTACHMENT>

The requirement is to do something ANY of the <ATTACHMENT_NAME> elemement
has non-empty String.  Here's the XSL I wrote:

  	<xsl:template match="ATTACHMENT">
		<xsl:if
test="string(normalize-space(child::ATTACHMENT_NAME))">
			<P>
				<B>ATTACHMENT:</B>
				<xsl:for-each select="ATTACHMENT_NAME">
					<xsl:variable name="href"
select="following-sibling::ATTACHMENT_LINK" />
					<a href ="{$href}">
						<xsl:apply-templates />
					</a>
					<br/>
				</xsl:for-each>
			</P>
		</xsl:if>
  	</xsl:template>

But from the result I got, seems like the decision is only based on the
first <ATTACHMENT_NAME> element it found, and totally ignore the later ones.
i.e. if the first <ATTACHMENT_NAME> has empty String value but the second
one has String value "link" in it, it won't fall into the if block. 

Thanks in advance for any suggestions!

Dongzhi


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