var timerID=0;var userId="";function pingUser(b){var a=NewObjXmlHttp();a.open("GET","/whoisonline/whoisonline?invoke=ping",true);a.onreadystatechange=function(){if(a.readyState==4){}};a.send(null)}function NewObjXmlHttp(){var d=null;var b=["Microsoft.XMLHTTP","Msxml2.XMLHTTP.4.0","Msxml2.XMLH TTP.5.0","Msxml2.XMLHTTP.3.0","Msxml2.XMLHTTP"];for(var a=0;d==null&&a<b.length;a++){try{d=new ActiveXObject(b[a])}catch(c){d=null}}if(d==null&&typeof XMLHttpRequest!="undefined"){d=new XMLHttpRequest()}return d}function UpdateTimer(){pingUser(userId)}function Start(a){UpdateTimer();timerID=setInterval("UpdateTimer()",180000)}function Stop(){if(timerID){clearTimeout(timerID);timerID=0}};