mhogeweg/getXMLField

## getXMLField
<!DOCTYPE html>
<html>
<head>
  <script>

var isIE = /*@cc_on!@*/false || document.documentMode;

var xmlFileName = "iso_dataset.xml";

var xpathTitle = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:citation//gmd:title/gco:CharacterString";
var xpathAbstract = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:abstract/gco:CharacterString";
var xpathPurpose = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:purpose/gco:CharacterString";
var xpathKeywords = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString";
var xpathLicense = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:useLimitation/gco:CharacterString";
var xpathCredits = "/gmd:MD_Metadata/gmd:contact/gmd:CI_ResponsibleParty/gmd:organisationName/gco:CharacterString";

function isoNSResolver(prefix) {
  var ns = {
    'gmd' : 'http://www.isotc211.org/2005/gmd',
    'gco': 'http://www.isotc211.org/2005/gco',
	'srv': 'http://www.isotc211.org/2005/srv'
  };
  return ns[prefix] || null;
}

function getXMLField(xmlDoc,xpathExpression) {
  var theField = "";

  //var nsResolver = xmlDoc.createNSResolver( xmlDoc.ownerDocument == null ? xmlDoc.documentElement : xmlDoc.ownerDocument.documentElement );
  var resultType = 0; //XPathResult.ANY_TYPE;

  var result;

  if (isIE) {
    // code for IE
    xmlDoc.setProperty("SelectionNamespaces", "xmlns:gmd='http://www.isotc211.org/2005/gmd' xmlns:gco='http://www.isotc211.org/2005/gco' xmlns:srv='http://www.isotc211.org/2005/srv'");
    xmlDoc.setProperty("SelectionLanguage", "XPath");

    result =xmlDoc.selectNodes(xpathExpression);
  } else {
    result = xmlDoc.evaluate( xpathExpression, xmlDoc, isoNSResolver, resultType, null );
  }

  var thisNode;
 if (isIE) {
    // code for IE
    thisNode = result.nextNode();
  } else {
    thisNode = result.iterateNext();
  }

  // if there's more than one result node, concatenate with comma.
  // always start with a , and then return starting from the second character
  while (thisNode) {

    if (isIE) {
      // code for IE
      theField += "," + thisNode.text;
      thisNode = result.nextNode();
    } else {
     theField += "," + thisNode.textContent;
     thisNode = result.iterateNext();
    }
  }

  if (theField.length > 0) {
    theField = theField.substring(1);
  }
  return theField;
}
  </script>
</head>
<body>
  <h1>Extracting Item Info Elements</h1>
  <div>
    <b>Title:</b> <span id="title"></span><br>
    <b>Abstract:</b> <span id="abstract"></span><br>
    <b>Purpose:</b> <span id="purpose"></span><br>
    <b>Keywords:</b> <span id="keywords"></span><br>
    <b>License:</b> <span id="license"></span><br>
    <b>Credits:</b> <span id="credits"></span><br>
  </div>

<script>

/*
 * when reading from a URL
 */
if (window.XMLHttpRequest) {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();

} else {

  // code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}

xmlhttp.open("GET",xmlFileName,false);
xmlhttp.send();
xmlDoc=xmlhttp.responseXML;


/*
 * when reading from string
 * txt = string containing XML
 */
/*
if (window.DOMParser) {
  parser=new DOMParser();
  xmlDoc=parser.parseFromString(txt,"text/xml");
} else {
 // Internet Explorer
  xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
  xmlDoc.async=false;
  xmlDoc.loadXML(txt);
}
*/


document.getElementById("title").innerHTML= getXMLField(xmlDoc,xpathTitle);
document.getElementById("abstract").innerHTML= getXMLField(xmlDoc,xpathAbstract);
document.getElementById("purpose").innerHTML= getXMLField(xmlDoc,xpathPurpose);
document.getElementById("keywords").innerHTML= getXMLField(xmlDoc,xpathKeywords);
document.getElementById("license").innerHTML= getXMLField(xmlDoc,xpathLicense);
document.getElementById("credits").innerHTML= getXMLField(xmlDoc,xpathCredits);
</script>

</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<script>

	var isIE = /@cc_on!@/false \|\| document.documentMode;

	var xmlFileName = "iso_dataset.xml";

	var xpathTitle = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:citation//gmd:title/gco:CharacterString";
	var xpathAbstract = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:abstract/gco:CharacterString";
	var xpathPurpose = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:purpose/gco:CharacterString";
	var xpathKeywords = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString";
	var xpathLicense = "/gmd:MD_Metadata/gmd:identificationInfo//gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:useLimitation/gco:CharacterString";
	var xpathCredits = "/gmd:MD_Metadata/gmd:contact/gmd:CI_ResponsibleParty/gmd:organisationName/gco:CharacterString";

	function isoNSResolver(prefix) {
	var ns = {
	'gmd' : 'http://www.isotc211.org/2005/gmd',
	'gco': 'http://www.isotc211.org/2005/gco',
	'srv': 'http://www.isotc211.org/2005/srv'
	};
	return ns[prefix] \|\| null;
	}

	function getXMLField(xmlDoc,xpathExpression) {
	var theField = "";

	//var nsResolver = xmlDoc.createNSResolver( xmlDoc.ownerDocument == null ? xmlDoc.documentElement : xmlDoc.ownerDocument.documentElement );
	var resultType = 0; //XPathResult.ANY_TYPE;

	var result;

	if (isIE) {
	// code for IE
	xmlDoc.setProperty("SelectionNamespaces", "xmlns:gmd='http://www.isotc211.org/2005/gmd' xmlns:gco='http://www.isotc211.org/2005/gco' xmlns:srv='http://www.isotc211.org/2005/srv'");
	xmlDoc.setProperty("SelectionLanguage", "XPath");

	result =xmlDoc.selectNodes(xpathExpression);
	} else {
	result = xmlDoc.evaluate( xpathExpression, xmlDoc, isoNSResolver, resultType, null );
	}

	var thisNode;
	if (isIE) {
	// code for IE
	thisNode = result.nextNode();
	} else {
	thisNode = result.iterateNext();
	}

	// if there's more than one result node, concatenate with comma.
	// always start with a , and then return starting from the second character
	while (thisNode) {

	if (isIE) {
	// code for IE
	theField += "," + thisNode.text;
	thisNode = result.nextNode();
	} else {
	theField += "," + thisNode.textContent;
	thisNode = result.iterateNext();
	}
	}

	if (theField.length > 0) {
	theField = theField.substring(1);
	}
	return theField;
	}
	</script>
	</head>
	<body>
	<h1>Extracting Item Info Elements</h1>
	<div>
	<b>Title:</b> <span id="title"></span><br>
	<b>Abstract:</b> <span id="abstract"></span><br>
	<b>Purpose:</b> <span id="purpose"></span><br>
	<b>Keywords:</b> <span id="keywords"></span><br>
	<b>License:</b> <span id="license"></span><br>
	<b>Credits:</b> <span id="credits"></span><br>
	</div>

	<script>

	/*
	* when reading from a URL
	*/
	if (window.XMLHttpRequest) {
	// code for IE7+, Firefox, Chrome, Opera, Safari
	xmlhttp=new XMLHttpRequest();

	} else {

	// code for IE6, IE5
	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}

	xmlhttp.open("GET",xmlFileName,false);
	xmlhttp.send();
	xmlDoc=xmlhttp.responseXML;



	/*
	* when reading from string
	* txt = string containing XML
	*/
	/*
	if (window.DOMParser) {
	parser=new DOMParser();
	xmlDoc=parser.parseFromString(txt,"text/xml");
	} else {
	// Internet Explorer
	xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
	xmlDoc.async=false;
	xmlDoc.loadXML(txt);
	}
	*/



	document.getElementById("title").innerHTML= getXMLField(xmlDoc,xpathTitle);
	document.getElementById("abstract").innerHTML= getXMLField(xmlDoc,xpathAbstract);
	document.getElementById("purpose").innerHTML= getXMLField(xmlDoc,xpathPurpose);
	document.getElementById("keywords").innerHTML= getXMLField(xmlDoc,xpathKeywords);
	document.getElementById("license").innerHTML= getXMLField(xmlDoc,xpathLicense);
	document.getElementById("credits").innerHTML= getXMLField(xmlDoc,xpathCredits);
	</script>

	</body>
	</html>