javascript alert from ASP.NET codebehind

string scriptString = "LT..script language="JavaScript"..GT javascript:alert('Record Saved');window.opener.location.reload();window.close();";
scriptString += "LT";
scriptString += "/";
scriptString += "script..GT";
if (!ClientScript.IsClientScriptBlockRegistered("clientScript"))
ClientScript.RegisterClientScriptBlock(this.GetType(), "clientScript", scriptString);