hi

i tried to use a simple AJAX call using jquery. my code is:

1.  

   $.ajax

   ({

   type:

   "GET",

   url:

   "MyMaster.Master/GeString",

   contentType:

   "application/json; charset=utf-8",

   data:

   "{}",

   dataType:

   "json",

   success: AjaxSucceeded,

   error: AjaxFailed

   });

 and the code behind is:

1.  

   [

   WebMethod]
   public static string GetString()

   {

   return "hi";

   }

the call fails with the following error:

401 unauthorized.

this code works perfectly with just a new test site.

i try to include this code in a existing site.

what could be the reason for this error? what site setings shuld  check ?