function PopupWin(url, w, h) {

    window.open(url, "external", "width=" + w + ",height=" + h + ",resizable=yes,scrollbars=yes,status=no,location=no,toolbar=no,menubar=no");
}

        function handleUpdate(context) {
            // Load and deserialize the returned JSON data
            var json = context.get_data();
            var data = Sys.Serialization.JavaScriptSerializer.deserialize(json);
 
            // Update the page elements
            $('#row-' + data.DeleteId).fadeOut('slow');
            $('#cart-status').text('Cart (' + data.CartCount + ')');
            $('#update-message').text(data.Message);
            $('#cart-total').text(data.CartTotal);
        }