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<xsl:stylesheet version="2.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt"
    xmlns:jscript="http://jscript.org">
    <xsl:output method="html" omit-xml-declaration="yes" indent="yes" exclude-result-prefixes="msxsl jscript"/>
    <msxsl:script language="JavaScript" implements-prefix="jscript">
    <![CDATA[
    public function test()
    {
        console.log('2');
    }
    ]]>
    </msxsl:script>

    <xsl:variable name="merged_xml_file" select="doc('xml_docs/test.xml')"/>
    <xsl:template match="/">
        <html>
            <head>
                <meta charset="utf-8"/>
                <title>XSLT</title>
            </head>
            <body>
                <div class="main_container" onclick="jscript:test()">Test</div>
            </body>
        </html>
    </xsl:template>
</xsl:stylesheet>