/**
 * 字符串创建XML文档
 */

jQuery.extend({
	createXMLDoc : function(string) {
		var browserName = navigator.appName;
		var doc;
		if (browserName == 'Microsoft Internet Explorer') {
			doc = new ActiveXObject('Microsoft.XMLDOM');
			doc.async = 'false';
			doc.loadXML(string);
		} else {
			doc = (new DOMParser()).parseFromString(string, 'text/xml');
		}
		return doc;
	}
});