> But how can I get the text content between two idlink node?

as far as I can see you don't want to extract anything between two
nodes, you just want the content of idlink.

Something like

<xsl:template match="idlink">
 <a href="something">
  <xsl:apply-templates/>
 </a>
</xsl:template>


You don't give any information about how the URI is determined based on
the input, so I just put "something" in the above.

David

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