ajax login

function login() {
         var user  = $('#uName').prop('value');
         var password = $('#uPassword').prop('value');
         user = user.trim();
         password = password.trim();

        if(user == ""){
            $("#message").html("Enter a User Name");
            $('#uName').focus();
            return false;
         }
        if(password == ""){
           $("#message").html("Enter the Password");
           $('#uPassword').focus();
            return false;
         }

        $.ajax({
                url: "login",
                type: "POST",
                dataType: "json",
                data: {username: user,password:password},
                async: false,
                cache: false,
                success: function(response){ if(response["status"] == "success") {
                      $("#message").html(response["message"]);
                      showMsg();
                      $("#hidStatus").prop("value","update");
                  } else if(response["status"] == "failure") {
                       $("#message").html(response["message"]);
                       showMsg();
                   }
               },
                error: function(err){
                   alert("Error in Login...");
               }
           });

       }