Function ajax

OpenReservation/wwwroot/Scripts/respond.js:286–302

(url, callback)

        },
        //tweaked Ajax functions from Quirksmode
        ajax = function (url, callback) {
            var req = xmlHttp();
            if (!req) {
                return;
            }
            req.open("GET", url, true);
            req.onreadystatechange = function () {
                if (req.readyState != 4 || req.status != 200 && req.status != 304) {
                    return;
                }
                callback(req.responseText);
            }
            if (req.readyState == 4) {
                return;
            }
            req.send(null);
        },
        //define ajax obj
        xmlHttp = (function () {
            var xmlhttpmethod = false;