function setSessionTrackingId() {
  if (document.cookie) {
    var id=getCookie('SessionTrackingId',null);
 
    if (id==null) {
      var exp=new Date(); 
      exp.setTime(exp.getTime()+(10*365*24*60*60*1000)); 
 
      var dt=new Date();
      var i=Math.random()*1000;
      id=dt.getTime().toString()+i.toString();
  
      setCookie('/','SessionTrackingId',id,exp.toGMTString());
    }
  }
}
function setSessionTrackingStart() {
  if (document.cookie) {
    var start=getCookie('SessionTrackingStart',null);
    if (start==null) {
      var start=new Date();
      setCookie('/','SessionTrackingStart',start.getTime());
    }
  }
}