I am getting a javascript error on firefox 3.5, when trying to call an ajax method.

Please find the error below:

XML Parsing Error: no element found Location: moz-nullprincipal:{1a2c8133-f48f-4707-90f3-1a2b2f2d62e2} Line Number 1, Column 1:



^

this is my javascript function:

function Update(Id) {

    $.ajax({

        type: GET,

        url: ROOT_URL + /sevice/udates.svc/Update?Id= + Id,

        success: function(response) {



        },

        async: false

    });

}