function validateXML() {
  var xmlDoc = new ActiveXObject("Msxml2.DOMDocument");
  xmlDoc.async = false;
  xmlDoc.load("mydvd7.xml");
  xmlDoc.documentElement.setAttribute("foo", "bar");
  var err = xmlDoc.validate();
  if (err.errorCode == 0) {
    alert("Document is valid");
  } else {
      alert("Validation error:" + err.reason);
	}
}

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