Creating elements in some namespace

      <xsl:stylesheet
                  xmlns:qqq="some-namespace"
                  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                  version="2.0">
            <xsl:output  method="xml"
                        indent="yes"
                        omit-xml-declaration="yes"/>

            <xsl:template  match="/aaa">
                  <qqq:bbb>
                        <qqq:ccc/>
                  </qqq:bbb>
            </xsl:template>

      </xsl:stylesheet>

      <aaa/>

      <qqq:bbb
                  xmlns:qqq="some-namespace">
            <qqq:ccc/>
      </qqq:bbb>