/// <summary>
        ///
        /// </summary>
        /// <param name="funcName"></param>
        /// <param name="e"></param>
        private static void Call(String funcName, EventArgs e)
        {
            Object funcObj;

            if (!_module.TryLookupVariable(funcName, out funcObj))
            {
                return;
            }

            FastCallable f = funcObj as FastCallable;

            if (f == null)
            {
                return;
            }
            try
            {
                f.Call(InvariantContext.CodeContext);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString(), ApplicationName, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }