Problem: special characters replaced by different encoding in HREF

[nicolas.m@eurorscg.be]

Hi

This is my HTML end result:

        <a
href=""content_recherche2.asp?p00=S%C3%A9rieyx," Herv%C3%A9">Sérieyx,
Hervé</a>

As you can see I am using special (french
in this case) characters. For some reason the character "é"  or
"%E9" is replaced by "%C3%A9". This is the XSL code:

        <xsl:for-each
select="contributor">
         
      <xsl:variable name="contributor_name"
select="@name"/>        
         
      <a href=""content_recherche2.asp?p00={$contributor_name}"><xsl:value-of"
select="$contributor_name"/></a> <br />  
     
        </xsl:for-each>
               
               
               
       

The encoding is right when it is simply
printed on screen but different when used in the HREF tag. I'm assuming
special characters are forbidden in URL's and therefor replaced by unicode
(?) characters. However I have no idea how to revert them to their original
encoding. 

The header in my XSL is 

        <xsl:output
method="html" encoding="iso-8859-1"/> 

I've tried setting it to UTF-8 but that
didn't change anything. The header in the XML is

        <?xml
version="1.0" encoding="UTF-8" standalone="no"
?> 


Thanks in advance,
Nicolas