Building select-clause dynamically with parameters

Hi,

I would like to pass some words into my XSL file which should be used
to build an XPath query in xsl:apply-templates. For an example, the following
works, but only for one word:

   <?xml version="1.0" encoding="ISO-8859-1"?>
   <xsl:stylesheet version="1.0"
        xmlns:xsl="http://www.w3.org/1999/XSL/Transform";      

   <xsl:param name="query"/>

   <xsl:template match="/">
     <xsl:apply-templates 
select="chapter[contains(descendant-or-self::*,$query)]"/>
   </xsl:template>

   <xsl:template match="chapter | section">
     <table>
       <tr>
         <td>&#160;</td>
         <td>Found <xsl:value-of select="title"/>
           <xsl:apply-templates 
select="section[contains(descendant-or-self::*, $query)]"/>
         </td>
       </tr>
     </table>
   </xsl:template>

   </xsl:stylesheet>

I don't know how many words will be passed into the XSL file, this should 
be flexible.
For example, If $query has the value "word1 word2", the only chapters and 
sections that
should be selected by apply-templates are those which contain word1 or 
word2, I think
in this case need I something like:

     <xsl:apply-templates 
select="chapter[contains(descendant-or-self::*,'word1') or
                                                            
contains(descendant-or-self::*,'word2')]"/>

I tried to pass the whole string used by "select" as parameter, but it does 
not work.
Another thing is that I also have words that should be excluded and that I 
would like
to pass a value into the XSL file that should define if it is an AND or an 
OR query to
build something like:

     <xsl:apply-templates 
select="chapter[contains(descendant-or-self::*,'word1') and
                                                            contains(descendant-or-self::*,'word2') 
and
                                                            
not(contains(descendant-or-self::*,'word3'))]"/>

Has anyone an idea how to do something like this? Or is it a better 
solution to do this
with Java DOM?

Thanks for help and greetings,

Marko


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