var timerID;
   var timerRunning = false;
   var today = new Date();
   var startday = new Date();
   var enday = new Date();
   var secPerDay = 0;
   var minPerDay = 0;
   var hourPerDay = 0;
   var secsLeft = 0;
   var secsRound = 0;
   var secsRemain = 0;
   var minLeft = 0;
   var minRound = 0;
   var minRemain = 0;
   var timeRemain = 0;
   function stopclock() {
   if(timerRunning)
   clearTimeout(timerID);
   timerRunning = false;
   }
   function startclock() {
   stopclock();
   showtime1();
   }

   function showtime1() {
   startday = new Date(byear, bmonth - 1, bday, bhour, bmin, bsec, 0);
   startday.setYear(""+byear+"");
   today = new Date();
   secsPerDay = 1000 ;
   minPerDay = 60 * 1000 ;
   hoursPerDay = 60 * 60 * 1000;
   PerDay = 24 * 60 * 60 * 1000;
   secsLeft = (today.getTime() - startday.getTime()) / minPerDay;
   secsRound = Math.round(secsLeft);
   secsRemain = secsLeft - secsRound;
   secsRemain = (secsRemain < 0) ? secsRemain = 60 - ((secsRound - secsLeft) * 60) : secsRemain = (secsLeft - secsRound) * 60;
   secsRemain = Math.round(secsRemain);
   minLeft = ((today.getTime() - startday.getTime()) / hoursPerDay);
   minRound = Math.round(minLeft);
   minRemain = minLeft - minRound;
   minRemain = (minRemain < 0) ? minRemain = 60 - ((minRound - minLeft) * 60) : minRemain = ((minLeft - minRound) * 60);
   minRemain = Math.round(minRemain - 0.495);
   hoursLeft = ((today.getTime() - startday.getTime()) / PerDay);
   hoursRound = Math.round(hoursLeft);
   hoursRemain = hoursLeft - hoursRound;
   hoursRemain = (hoursRemain < 0) ? hoursRemain = 24 - ((hoursRound - hoursLeft) * 24)  : hoursRemain = ((hoursLeft - hoursRound) * 24);
   hoursRemain = Math.round(hoursRemain - 0.5);
   daysLeft = ((today.getTime() - startday.getTime()) / PerDay);
   daysLeft = (daysLeft - 0.5);
   daysRound = Math.round(daysLeft);
   daysRemain = daysRound;
   if (daysRemain == 1) day_rem = " day, "
   else day_rem = " days, "
   if (hoursRemain == 1) hour_rem = " hour, "
   else hour_rem = " hours, "
   if (minRemain == 1) min_rem = " minute, "
   else min_rem = " minutes, "
   if (secsRemain == 1) sec_rem = " second"
   else sec_rem = " seconds"
   timeRemain = daysRemain + day_rem + hoursRemain + hour_rem + minRemain + min_rem + secsRemain + sec_rem;
   document.getElementById('clock').innerText = timeRemain;
   timerID = setTimeout("showtime1()",1000);
   timerRunning = true;
   }
   //  End -->