Filtering a xml document using JavaScript

[hlynurj]

<script language="javascript">
// Load XML
var xml = new ActiveXObject("Microsoft.XMLDOM")
xml.async = false
xml.load("dagskra.xml")

// Load the XSL
var xsl = new ActiveXObject("Microsoft.XMLDOM")
xsl.async = false
xsl.load("dagskra3.xsl")

// Transform
document.write(xml.transformNode(xsl))
</script>

This script takes a xml file and display using the xsl stylesheet. In a similar code in asp you can filter the xml file before it is displayed. Can that be done in JavaScript?