I'm having trouble working out the correct XSLT syntax for my multi-node tree picker macro. I'm trying to display the images that have been selected. Here's what I've got, tweaked from the codeplex example (it's not working):

<xsl:template match="/">
  
  <xsl:if test="$currentPage/subpageImages/MultiNodePicker/nodeId">

          <!-- Loop through each of the nodeId values -->
      <xsl:for-each select="$currentPage/subpageImages/MultiNodePicker/nodeId">

              <xsl:variable name="node" select="umbraco.library:GetMedia(.)" />
        <img src="{$node/umbracoFile}" alt="[image]" height="{$node/umbracoHeight}" width="{$node/umbracoWidth}" />

      </xsl:for-each>

      <br /><br />

  </xsl:if>
  
</xsl:template>