startday = new Date();
clockStart = startday.getTime();

function initStopwatch() {
var myTime = new Date();
var timeNow = myTime.getTime();
var timeDiff = timeNow - clockStart;
this.diffSecs = timeDiff/1000;
return(this.diffSecs); }

function getSecs()
{
var mySecs = initStopwatch();
var mySecs1 = ""+mySecs;
mySecs1= mySecs1.substring(0,mySecs1.indexOf("."));
JsHttpRequest.query('counttime.php',{'tcount': mySecs1});
document.forms[0].timespent.value = mySecs1
window.setTimeout('getSecs()',15000);
}