Can we make use of json in javascript function

function funDelete() {
           if (confirm("Do you want to delete this record?")) {
               try {
                   var id = document.getElementById("ctl00_cphMain_gvJobs_ctl05_hfID").value;
                                       //TRY TO DELETE RECORD USING JSON
                   $.ajax({
                           //CODE TO DELETE RECORD
               });
               }
               catch (e) {
                   alert("Error:" + e.message);
               }
           }
       }