[xsl] Can´t escape

[xptm <xptm@xxxxxxx>]

I have this piece of XML

<Formatos>
   <Forms>
       <Form Nome="TesteKeyWord">
           <RowSource>
               SELECT DiaSemana.DiaSemana, DiaSemana.NomeDiaSemana FROM 
DiaSemana WHERE (((DiaSemana.DiaSemana)>=4))
           </RowSource>
       </Form>
   </Forms>
</Formatos>

And this XSLT

<?xml version="1.0" encoding="ISO8859-1" ?>
<xsl:transform version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
 <xsl:output method="xml" version="1.0" encoding="ISO8859-1" indent="yes"/>

  <xsl:template match="/">
   <XPage class="Tester">
     <xsl:attribute name="sql">
       <xsl:value-of select="/Formatos/Forms/Form[1]/RowSource" 
disable-output-escaping="yes"/>
     </xsl:attribute>

   (...)

    </XPage>
 </xsl:template>

But my output is allways

<?xml version="1.0" encoding="ISO-8859-1"?>
<XPage class="Tester" sql="SELECT DiaSemana.DiaSemana, 
DiaSemana.NomeDiaSemana FROM DiaSemana WHERE 
(((DiaSemana.DiaSemana)&gt;=4))">


I've tryed several ways to do this but nothing works. Why isn't the 
disable-output-escaping working? Is this a specific processor issue? I'm 
using Xalan-java 2.4.1.