var timerID;
var timerRunning = false;
var today = 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;
var decremain = 0;
var decround = 0;

// browsertime is when page was loaded

browsertime = new Date();

function stopclock (){
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}
function startclock () {
// alert("clock started SYS:=" + system_state + "SERVERTIME:=" + servertoday + "ENDTIME:= " + enday);
stopclock();
showtime();
}
function showtime () {

// make sure its using the server

nowtime = new Date();

elaspsed = nowtime.getTime() - browsertime.getTime();

newday  = servertoday.getTime() + elaspsed;

today = new Date(newday);

// alert("Nowtime: " + nowtime + " \nElasped:" + elaspsed + " \nToday: " + today + " \nBrowsertime: " + browsertime + " \nServerttoday: " + servertoday);
  

secsPerDay = 1000 ;
minPerDay = 60 * 1000 ;
hoursPerDay = 60 * 60 * 1000;
PerDay = 24 * 60 * 60 * 1000;
/*Seconds*/
secsLeft = (enday.getTime() - today.getTime()) / minPerDay;
decremain = (enday.getTime() - today.getTime()) / secsPerDay;
decround = Math.round(decremain);
decremain = decround + " seconds";
secsRound = Math.round(secsLeft);
secsRemain = secsLeft - secsRound;
secsRemain = (secsRemain < 0) ? secsRemain = 60 - ((secsRound - secsLeft) * 60) : secsRemain = (secsLeft - secsRound) * 60;
secsRemain = Math.round(secsRemain);
/*Minutes*/
minLeft = ((enday.getTime() - today.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);
/*Hours*/
hoursLeft = ((enday.getTime() - today.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);
/*Days*/
daysLeft = ((enday.getTime() - today.getTime()) / PerDay);
daysLeft = (daysLeft - 0.5);
daysRound = Math.round(daysLeft);
daysRemain = daysRound;
/*Time*/
timeRemain = daysRemain + " days, " + hoursRemain + " hours, " + minRemain + " minutes, " + secsRemain + " seconds";
document.clock.face.value = timeRemain;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
if (daysRemain < 0) {
clearTimeout(timerID);
timerRunning = false;

if (system_state == 1) {

    document.clock.face.value = "Abstract Submission System Closed!";

} else if (system_state == 0) {

   document.clock.face.value = "Abstract Submission System Closed!";

} else if (system_state == 2) {

     document.clock.face.value = "Abstract Submission System Open!";
     setTimeout(location.reload(),2000);


 }

 }
}