[XML] Tri Dynamique Firefox

Bonjour, voilà j'ai trouvé un exemple de tri dynamique dans la FAQ. Seulement le code ne fonctionne que sous IE et je voudrai pouvoir l'adapter afin de l'utiliser sous Firefox. Pouvez vous m'aidez a traduire le script ?
Code:
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<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
   <xsl:output method="html" indent="yes"/>
 
   <xsl:param name="field"/>
   <xsl:param name="order"/>
 
   <xsl:template match="persons">
    <html>
        <head>
        <script type="text/javascript">
       function tri(field,order) {
            var xslt = new ActiveXObject("Msxml2.XSLTemplate.4.0"); 
            var xslDoc = new ActiveXObject("Msxml2.FreeThreadedDOMDocument.4.0");
 
            var xslProc; 
            xslDoc.async = false;
            xslDoc.load("tridyna.xsl"); 
            xslt.stylesheet = xslDoc; 
            var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0"); 
            xmlDoc.async = false; 
            xmlDoc.load("test.xml"); 
            xslProc = xslt.createProcessor(); 
            xslProc.input = xmlDoc; 
            xslProc.addParameter("field", field); 
            xslProc.addParameter("order", order); 
            xslProc.transform(); 
            document.body.innerHTML=xslProc.output;
        }
        </script>
        </head>
        <body>
            <script type="text/javascript">
             tri('name', 'ascending');
            </script>
    <table>
      <xsl:variable name="neworder">
           <xsl:if test="$order='ascending'">descending</xsl:if>
           <xsl:if test="$order='descending'">ascending</xsl:if>
         </xsl:variable>
         <tr>
              <th>
                <a href="javascript:tri('name','{$neworder}')">name</a>
              </th>
              <th>
                <a href="javascript:tri('phone','{$neworder}')">phone number</a>
              </th>
         </tr>
 
           <xsl:for-each select="person">
             <xsl:sort select="*[name()=$field]" order="{$order}"/>
                <tr>
                    <td>
                        <xsl:value-of select="name"/>
                    </td>
                    <td>
                        <xsl:value-of select="phone"/>
                    </td>
                </tr>
           </xsl:for-each>
        </table>
       </body>
    </html>
   </xsl:template>
</xsl:stylesheet>