if (!jQuery.support.cors && window.XDomainRequest) {

    var httpRegEx = /^https?:\/\//i;

    var getOrPostRegEx = /^get|post$/i;

    var sameSchemeRegEx = new RegExp('^'+location.protocol, 'i');

    var xmlRegEx = /\/xml/i;

    // ajaxTransport exists in jQuery 1.5+

    jQuery.ajaxTransport('text html xml json', function(options, userOptions, jqXHR){

        // XDomainRequests must be: asynchronous, GET or POST methods, HTTP or HTTPS protocol, and same scheme as calling page

        if (options.crossDomain && options.async && getOrPostRegEx.test(options.type) && httpRegEx.test(userOptions.url) && sameSchemeRegEx.test(userOptions.url)) {

            var xdr = null;

            var userType = (userOptions.dataType||'').toLowerCase();

            return {

                send: function(headers, complete){

                    xdr = new XDomainRequest();

                    if (/^\d+$/.test(userOptions.timeout)) {

                        xdr.timeout = userOptions.timeout;

                    }

                    xdr.ontimeout = function(){

                        complete(500, 'timeout');

                    };

                    xdr.onload = function(){

                        var allResponseHeaders = 'Content-Length: ' + xdr.responseText.length + '\r\nContent-Type: ' + xdr.contentType;

                        var status = {

                            code: 200,

                            message: 'success'

                        };

                        var responses = {

                            text: xdr.responseText

                        };

                                try {

                                    if (userType === 'json') {

                                        try {

                                            responses.json = JSON.parse(xdr.responseText);

                                        } catch(e) {

                                            status.code = 500;

                                            status.message = 'parseerror';

                                            //throw 'Invalid JSON: ' + xdr.responseText;

                                        }

                                    } else if ((userType === 'xml') || ((userType !== 'text') && xmlRegEx.test(xdr.contentType))) {

                                        var doc = new ActiveXObject('Microsoft.XMLDOM');

                                        doc.async = false;

                                        try {

                                            doc.loadXML(xdr.responseText);

                                        } catch(e) {

                                            doc = undefined;

                                        }

                                        if (!doc || !doc.documentElement || doc.getElementsByTagName('parsererror').length) {

                                            status.code = 500;

                                            status.message = 'parseerror';

                                            throw 'Invalid XML: ' + xdr.responseText;

                                        }

                                        responses.xml = doc;

                                    }

                                } catch(parseMessage) {

                                    throw parseMessage;

                                } finally {

                                    complete(status.code, status.message, responses, allResponseHeaders);

                                }

                            };

                            xdr.onerror = function(){

                                complete(500, 'error', {

                                    text: xdr.responseText

                                });

                            };

                            xdr.open(options.type, options.url);

                            //xdr.send(userOptions.data);

                            xdr.send();

                        },

                        abort: function(){

                            if (xdr) {

                                xdr.abort();

                            }

                        }

                    };

                }

            });

    };