window.onload=function(){    var but = document.getElementById("timer");    if(but != null){        but.onclick=function(){            var _url =                 "http://www.parkerriver.com/s/sender?text=hello%20there";            var dt=new Date().getTime();            httpRequest("GET",_url,false,handleResponse);            alert("Send() finally completed after "+((new Date().					getTime() - dt) / 1000)+                  " seconds!!");        };  }}//event handler for XMLHttpRequestfunction handleResponse(){    try{        if(request.readyState == 4){            if(request.status == 200){                var msg = document.getElementById("response_msg");                if(msg) {                    var cnt = "";                    cnt += "<pre>";                    cnt += request.responseText;                    cnt += "</pre>";                    msg.innerHTML  = cnt;                }            } else {                //request.status is 503                //if the application isn't available;                //500 if the application has a bug                alert(                        "A problem occurred with communicating between "+                        "the XMLHttpRequest object and the server program.");            }        }//end outer if    } catch (err)   {        alert("It does not appear that the server is "+              "available for this application. Please"+              " try again very soon. \nError: "+err.message);    }}