transform a link

Hi, Gurus,
I am trying to transform an xml to a html file.
My problem is when the transformation is done, a
report_1.htm is created at 
www.mydomain.com/test/reports/summary/report_1.htm

The report_1.htm has a link to a detail_1.htm which is
located at 
www.mydomain.com/test/details/invoice/detail_1.htm

In the xsl file, I use the following trick:
<xsl:variable name="link">
   ../../details/invoice/detail_1.htm
</xsl:variable>
<a>
   <xsl:attribute name="href">
       <xsl:value-of select="$link"/>
   </xsl:attribute>
   <xsl:value-of select="link_title"/>
</a>

However, in the final report_1.htm, I found the link
actually looks like:
%0A%09%09%09%09%09%09../../details/invoice/detail_1.htm

If I click this link, the URL will go to:
www.mydomain.com/test/reports/summary/details/invoice/detail_1.htm,
and the correct page will be displayed.

Any idea on how to correct it?

Thanks so much.

Yan

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