javascript parse xml without jquery

Hi,
I just wrote a function (with help) to parse some xml.  How can I do this without jquery?

function getValueFromXml(xml, key) {
    xmlDoc = $.parseXML(xml);
    $xml = $(xmlDoc);
    $returnValue = $xml.find(key);
    return $returnValue;
}
jackjohnson44Asked:
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Robert SchuttConnect With a Mentor Software EngineerCommented:
With most new browsers this should work (tested in FireFox and Chrome):
function getValueFromXml(xml, key) {
	var parser = new DOMParser();
	var xmlDoc = parser.parseFromString(xml, "text/xml");
	var sessionIdNodes = xmlDoc.getElementsByTagName(key);
	return sessionIdNodes.length ? sessionIdNodes[0].textContent : 'NOT_FOUND';
}

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