Ajax method Customization Overrides

(function ($) {
var ajax = $.ajax;
$.ajax = function (s) {
var old=s.error;
var old1 = s.success;
S.error = function (XHR, status, err) {

Can be combined with their own judgment.
var flag = Xhr.getresponseheader ("nopermissions");
if (flag! = NULL && flag! = "") {
var result = Xhr.responsetext;
var data = eval ("(" + result + ")");
alert (data.msg);
Window.location.href = Data.url;
}else{
Old (Xhr,status,err);
}
};
s.success = function (data, textstatus, XHR) {

Can add their own judgment to handle var flag = Xhr.getresponseheader ("nopermissions");
if (flag! = NULL && flag! = "") {
var result = Xhr.responsetext;
var data = eval ("(" + result + ")");
alert (data.msg);
Window.location.href = Data.url;
}else{
Old1 (data, Textstatus, XHR);
}
};
Ajax (s);
}
}) (JQuery);

Ajax method Customization Overrides