I?m using Forrest DirectoryGenerator to browse through pdf files
in different folders.

<li>
171-Regulatory_Interactions.pdf
<a href="N109C6">171-Regulatory_Interactions.pdf</a>
</li>
-
<li>
181-Leukemic_Inhibition.pdf
<a href="N109CB">181-Leukemic_Inhibition.pdf</a>
</li>

<xsl:template match="dir:directory|dir:file">
<li>
<xsl:value-of select="@name"/>
<xsl:if test="name(.)='dir:directory'">
<!-- creating subdirectories -->
<ul><xsl:apply-templates/></ul>
</xsl:if>
<xsl:for-each select="@name">

<a href="{generate-id(.)}">
<xsl:value-of select="."/>
</a>
</xsl:for-each>

</li>
</xsl:template>

<xsl:template match="/dir:directory">
<ul>
<xsl:value-of select="@name"/>
<!-- creating subdirectories -->

</ul>
</xsl:template>