How to call a WebMethod of a Web Service using jQuery Ajax JSON

The following jQuery is used to call a WebMethod of a Web Service using jQuery Ajax JSON.

jQuery:

1. $(document).ready(function () {
2. var Name = $("#name").val();
3. var Email = $("#email").val();
4. var Message = $("#msg").val();
5. $.ajax({
6.     type: "POST",
7.     data: "{'Name':'" + Name + "','Email':'" + Email + "','Message':'" + Message + "'}",
8.     url: "/WebServices/WS.asmx/Contact",
9.     contentType: "application/json; charset=utf-8",
10.     dataType: "json",
11.     success: function (response) {
12.         if (response.d == true) {
13.             alert("Thank you for contacting JJ Technology Solutions.");
14.         }
15.         else {
16.             alert("Error sending email. Please try again later.");
17.         }
18.     }
19. });
20. });