I was wondering how I can make the page refresh after the timer has reached 0 for X amount of seconds? Here is the code I am using:

PHP Code:
<script language="JavaScript">
TargetDate "{$timerdate}";
BackColor "#FFFFFF";
ForeColor "#FF0000";
CountActive true;
CountStepper = -1;
LeadingZero true;
DisplayFormat "%%D%% Days %%H%% Hours %%M%% Minutes %%S%% Seconds";
FinishMessage "<b>Price has been reduced!</b>";
</script> 
PHP Code:
function calcage(secsnum1num2) {
  
= ((Math.floor(secs/num1))%num2).toString();
  if (
LeadingZero && s.length 2)
    
"0" s;
  return 
"<b>" "</b>";
}

function 
CountBack(secs) {
  if (
secs 0) {
    
document.getElementById("cntdwn").innerHTML FinishMessage;
    return;
  }
  
DisplayStr DisplayFormat.replace(/%%D%%/gcalcage(secs,86400,100000));
  
DisplayStr DisplayStr.replace(/%%H%%/gcalcage(secs,3600,24));
  
DisplayStr DisplayStr.replace(/%%M%%/gcalcage(secs,60,60));
  
DisplayStr DisplayStr.replace(/%%S%%/gcalcage(secs,1,60));

  
document.getElementById("cntdwn").innerHTML DisplayStr;
  if (
CountActive)
    
setTimeout("CountBack(" + (secs+CountStepper) + ")"SetTimeOutPeriod);
}

function 
putspan(backcolorforecolor) {
 
document.write("<span id='cntdwn' style='background-color:" backcolor 
                
"; color:" forecolor "'></span>");
}

if (
typeof(BackColor)=="undefined")
  
BackColor "white";
if (
typeof(ForeColor)=="undefined")
  
ForeColor"black";
if (
typeof(TargetDate)=="undefined")
  
TargetDate "12/31/2020 5:00 AM";
if (
typeof(DisplayFormat)=="undefined")
  
DisplayFormat "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
if (
typeof(CountActive)=="undefined")
  
CountActive true;
if (
typeof(FinishMessage)=="undefined")
  
FinishMessage "";
if (
typeof(CountStepper)!="number")
  
CountStepper = -1;
if (
typeof(LeadingZero)=="undefined")
  
LeadingZero true;


CountStepper Math.ceil(CountStepper);
if (
CountStepper == 0)
  
CountActive false;
var 
SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 990;
putspan(BackColorForeColor);
var 
dthen = new Date(TargetDate);
var 
dnow = new Date();
if(
CountStepper>0)
  
ddiff = new Date(dnow-dthen);
else
  
ddiff = new Date(dthen-dnow);
gsecs Math.floor(ddiff.valueOf()/1000);
CountBack(gsecs);