處理Asp.net Ajax框架12029,12007錯誤

<asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <script language="javascript" type="text/javascript"> Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); function EndRequestHandler(sender, args) { if (args.get_error() != undefined) { if ((args.get_response().get_statusCode() == '12007') || (args.get_response().get_statusCode() == '12029')) { document.writeln("服務器連接失敗。"); window.onerror = false; //JS中遇到腳本錯誤時不做任何操作 } } } </script>