s!=200) {  // There was an error doing the AJAX callback
                $('#errorText').html('Unable to update data');
                $('#errorText').css("display", "inline");
                $('#main_output').css("display", "none");
            }
        }
        // This GET URL must match the domain in the web browser of this page or it will not work
        // so we use the page's location object to open the page from the same server
        xmlHTTP.open("GET", location.protocol + '//' + location.host