'nest' : '<' + '?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" encoding="utf-8" omit-xml-declaration="yes" standalone="no" indent="no" media-type="text/html" />' + 
            '<xsl:template match="/">' + 
            '    <xsl:call-template name="nodes">' +