var KeepAlivePinger=new XMLHttpRequest(); function PingServer(){ var TimeStamp=(new Date().getTime()); KeepAlivePinger.open("GET","Ping.cfm?TimeStamp="+TimeStamp); KeepAlivePinger.send(); //if(console&&console.log)console.log("KeepAlive:"+TimeStamp); } setInterval(PingServer,30000);