jQuery.createXMLDocument = 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;
}