var oEvaluator = new XPathEvaluator();
var oResult = oEvaluator.evaluate(¡°count(employee/name)¡±, oXmlDom.documentElement,null, XPathResult.BOOLEAN_TYPE, null);
alert(oResult.numberValue);

should be:

var oEvaluator = new XPathEvaluator();
var oResult = oEvaluator.evaluate(¡°count(employee/name)¡±, oXmlDom.documentElement,null, XPathResult.NUMBLE_VALUE, null);
alert(oResult.numberValue);

Good catch again, though not the correct fix. Should be:

var oResult = oEvaluator.evaluate(¡°count(employee/name)¡±, oXmlDom.documentElement,null, XPathResult.NUMBER_TYPE, null);

Nicholas C. Zakas
Author, Professional JavaScript for Web Developers (ISBN 0764579088)
http://www.nczonline.net/