<xsl:value-of select="translate(normalize-space(translate($text,'
&#10;','~')),'~',' &#10;')" />

<xsl:stylesheet version="1.1"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:variable name="vText" select="string(/)"/>
      <xsl:template match="/">
              "<xsl:value-of
select="translate(normalize-space(translate($vText,'
              &#10;','~')),'~',' &#10;')" />"
      </xsl:template>
</xsl:stylesheet>

The function f:trim()
(See: http://fxsl.cvs.sourceforge.net/fxsl/fxsl-xslt2/Tests/testFunc-Trim.xsl?view=markup)

--
Cheers,
Dimitre Novatchev
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Truly great madness cannot be achieved without significant intelligence.
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To invent, you need a good imagination and a pile of junk
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play