Attach link to button from XML

1

I have an XML node: <link>http://www.google.com</link>
which if that node exists will be applied to a button using the following code:

siteBtn.onRelease = function() {
			getURL(link, "_blank");
		};

However when i click the button it gives me an undefined address - and does not work…???

Full Code:

function loadXMLData(loaded) {
	if (loaded) {
		xmlNode = this.firstChild;
		brandname = xmlNode.childNodes[0].childNodes[0].firstChild.nodeValue;
		description = xmlNode.childNodes[0].childNodes[1].firstChild.nodeValue;
		link = xmlNode.childNodes[0].childNodes[2].firstChild.nodeValue;
		brandNameTxt.htmlText = brandname;
		brandTxt.htmlText = description;
		brandTxt._width = 325;
	} else {
		brandTxt.htmlText = "Sorry, the text was unable to load.";
		trace("Could not load XML file");
	}
}
xmlFile = new XML();
xmlFile.ignoreWhite = true;
xmlFile.onLoad = loadXMLData;
xmlFile.load("brands/brand1/brand1.xml");

onEnterFrame = function () {
	if (xmlNode.childNodes[0].childNodes[2].firstChild) {
		link = xmlNode.childNodes[p].childNodes[2].firstChild;
		siteBtn._visible = true;
		siteBtn.onRelease = function() {
			getURL(link, "_blank");
		};
	} else {
		siteBtn._visible = false;
	}
};