Just a starter template for how to create simple HTML report from XML data directly in browser

data.xml

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="stylesheet.xsl"?>
<pozadavky xmlns="http://calavera.info">
  <pozadavek id="1" subdodavka="true" md="1" submd="5">
    <text>Some text</text>
  </pozadavek>

  <pozadavek id="2" subdodavka="false" md="10">
    <text>Some other text</text>
    <note>Some note</note>
  </pozadavek>
</pozadavky>

stylesheet.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
	xmlns:my="http://calavera.info"
	xmlns:h="http://www.w3.org/1999/xhtml">
	<xsl:output method="html" />

	<xsl:template match="/">
		<h:html>
			<h:head>
				<h:title>Přehled požadavků na subdodavatele</h:title>
			</h:head>
			<h:body>
				<h:table>
					<h:tr>
						<h:td>ID</h:td>
						<h:td>Text</h:td>
						<h:td>Poznámka</h:td>
						<h:td>Odhad [MD]</h:td>
						<h:td>Subdodavatel</h:td>
						<h:td>Subdodavatel odhad [MD]</h:td>
					</h:tr>
					<xsl:apply-templates select="my:pozadavky/my:pozadavek[contains(@subdodavka,'true')]"/>
				</h:table>
			</h:body>
		</h:html>
	</xsl:template>

	<xsl:template match="my:pozadavek">
		<h:tr>
			<h:td><xsl:value-of select="@id"/></h:td>
			<h:td><xsl:value-of select="my:text"/></h:td>
			<h:td><xsl:value-of select="my:note"/></h:td>
			<h:td><xsl:value-of select="@md"/></h:td>
			<h:td><xsl:value-of select="@subdodavatel"/></h:td>
			<h:td><xsl:value-of select="@submd"/></h:td>
		</h:tr>
	</xsl:template>
</xsl:stylesheet>