void OnJavascriptError(object sender, JavascriptErrorEventArgs e)
 {
     if (_conversionOrder.Debug)
     {
         Console.WriteLine("GeckofxHtmlToPdf: {0} Line {1} Position {2}: {3}", e.Filename, e.Line, e.Pos, e.Message);
     }
 }
 private void _browser_JavascriptError(object sender, JavascriptErrorEventArgs e)
 {
     Console.WriteLine("{0}, {1}:{2}", e.Message, e.Filename, e.Line);
 }
 private void web_browser_JavascriptError(object sender, JavascriptErrorEventArgs e)
 {
 }