Auto close context.response.write alert in ashx file

[WilliamYD]

I show an alert after some process in my ashx file. I use to show alert this code block:\[code\] private void WriteSuccess(HttpContext context, string message) { context.Response.Clear(); context.Response.ContentType = "application/json"; context.Response.Write( js.Serialize( new { message = message, success = true }) ); }\[/code\]I want to auto close (fade out) this alert after shown. Do you have any suggestion?