Library for xml to json conversion

xml2json.js

/*
	fuck copyrights, i just need working lib
*/

(function (global) {
	function serializeNode(xmlNode) {
		var jsonNode = {};

		if (xmlNode.attributes) {
			for (var i = 0, length = xmlNode.attributes.length; i < length; i++) {
				jsonNode[xmlNode.attributes[i].name] = xmlNode.attributes[i].value
			}
		}

		var preliminaryCache = {};
		for (var i = 0, length = xmlNode.childNodes.length; i < length; i++) {
			var currentNode = xmlNode.childNodes[i];
			if (typeof preliminaryCache[currentNode.nodeName] == 'undefined') {
				preliminaryCache[currentNode.nodeName] = [];
			}
			preliminaryCache[currentNode.nodeName].push(serializeNode(xmlNode.childNodes[i]));
		}

		for (var name in preliminaryCache) {
			if (preliminaryCache[name].length > 1) {
				jsonNode[name] = preliminaryCache[name];
			} else if (preliminaryCache[name].length == 1) {
				jsonNode[name] = preliminaryCache[name][0];
			}
		}

		return jsonNode;
	}

	global.xml2json = {
		parse: function (xml) {
			if (!(xml instanceof Document)) {
				var parser = new DOMParser();
				xml = parser.parseFromString(xml, 'text/xml');
			}

			return serializeNode(xml);
		}
	};
})(window);