JavaScript - Validate Values Greater Than 8 Hours?

   function IsNewBidGreater(windowname) 
   {
       var NewBid;
       var CurrentPrice;
       CurrentPrice = document.getElementById('MainContent_txtCurrentPrice').value;
       NewBid = document.getElementById('MainContent_txtNewBid').value;
       parseFloat(NewBid).toFixed(2);
       parseFloat(CurrentPrice).toFixed(2);
       
       if (NewBid < CurrentPrice || NewBid == CurrentPrice) 
       {
           NewBid.className = "error";
           document.getElementById('MainContent_ErrorLowBid').style.display = 'block';
         return false;
       } else {
           document.getElementById('MainContent_ErrorLowBid').style.display = 'none';
          document.getElementById('MainContent_BidConfirm').innerHTML = NewBid;
       ConPopUp(windowname)
      }
}

var count=2o
var countNow=count+1
What should I use here to show 21

 var subs = "sub" + (i + 1);
   var numSubs = document.getElementsByName(subs);  
   alert(numSubs.length);
      for(j=0; j < numSubs.length; j++)
	  {
	   alert();
	   toc.innerHTML += "<li>" + numSubs.item(j).innerHTML + "</li>";
	  }

<h1>Boolean Algebra</h1>
     <h2>Fundamental Boolean functions</h2>
         <h3 name = "sub1">Boolean Wrapper Class</h3>
         <h3 name = "sub1">Boolean Computations</h3>
      <h2>Computational Completeness</h2>
          <h3 name = "sub2">Calculating Machanics</h3>
      <h2>Identities of Boolean algebra</h2>
          <h3 name = "sub3">NAND and NOR</h3>
      <h2>NAND and NOR</h2>

<script charset="utf-8" language="javascript" type="text/javascript">
function test(gaz) {
		var sbText = gaz.innerHTML;
		var sbTextArr = sbText.split(' ');
		var tempText = "";
		for (var s=0; s<sbTextArr.length; s++) {
			if (sbTextArr[s].length > 30) { sbTextArr[s] = "marco"; }
			gaz.innerHTML = "";
			tempText = tempText + " " + sbTextArr[s];
			gaz.innerHTML = tempText;
			}
	}</script>

<div class="myClass" onmouseover="test(this);"><p>This is a <strong>looooooooooooooo</strong><em>ooooooooooooooooooooooooooooooong</em> word.</p></div>
<div class="myClass" onmouseover="test(this);">A text without long word.</div>
<div class="anotherClass"><p>Another set</p><p>But should not affect if there's a loooooooooooooooooong word.</p></div>

<div id='cptup-ready'>
</div>
<script data-cfasync='false' type='text/javascript'>
//<![CDATA[
    window.captain = {up: function(fn) { captain.topics.push(fn) }, topics: []};
    // Add your settings he 
    captain.up({
        api_key: 'XXXXXXXX'
    });
//]]>
</script><script data-cfasync='false' type='text/javascript'>
//<![CDATA[
    setTimeout(function() {
        var cpt = document.createElement('script');
        cpt.type = 'text/javascript'; cpt.async = true;
        cpt.src = 'http' + (location.protocol == 'https:' ? 's' : '') + '://captainup.com/assets/embed.en.js';
        (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(cpt);
     }, 31000)();
//]]>
</script>

var HAS_EXPIRED = 'Time has Expired!';
var IS_NONE = 'None';
function secondCountdown(s){
	
	if(s){
		
		var timeleft = document.getElementById('timeleft').innerHTML;
		
		if((timeleft == HAS_EXPIRED) || (timeleft == IS_NONE)) return false;
		
		timeleft = timeleft.replace('<font>', '');
		timeleft = timeleft.replace('</font>', '');
		
		var time = timeleft.split(":");
		
		var secs = time[2] * 1;
		var mins = time[1] * 1;
		var hrs = time[0] * 1;
		
		secs += (mins * 60) + (hrs * 3600);
		secs -= 1;
		
		if(secs <= 0){
			
			document.getElementById('timeleft').innerHTML = HAS_EXPIRED;
			return false;
			
		} else {
			
			hrs = Math.floor(secs/3600);
			secs -= (hrs * 3600);
			
			mins = Math.floor(secs/60);
			secs -= (mins * 60);			
							
			if(hrs < 10)	hrs = '0' + hrs;
			if(mins < 10)	mins = '0' + mins;			
			if(secs < 10)	secs = '0' + secs;
					
			document.getElementById('timeleft').innerHTML = hrs + ':' + mins + ':' + secs;
			
		}
		
	}
	
	setTimeout('secondCountdown(true)',1000);
	
}

bootloaderAdd('secondCountdown()');
bootloaderOn();

<script language="JavaScript">
TargetDate = "12/31/2020 5:00 AM";
BackColor = "palegreen";
ForeColor = "navy";
CountActive = true;
CountStepper = -1;
LeadingZero = true;
DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
FinishMessage = "It is finally here!";
</script>
<script language="JavaScript" src="/js/countdown.js"></script>

<script language="JavaScript">

function goNewWin() {

TheNewWin=window.open("http://google.com",'Google','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1');

TheNewWin.blur();

}
</script>

<body onClick="goNewWin()">

<script type="text/javascript">

// Javascript to compute elapsed time between "Start" and "Finish" button clicks
function timestamp_class(this_current_time, this_start_time, this_end_time, this_time_difference) { 
        this.this_current_time = this_current_time;
        this.this_start_time = this_start_time;
        this.this_end_time = this_end_time;
        this.this_time_difference = this_time_difference;
        this.GetCurrentTime = GetCurrentTime;
        this.StartTiming = StartTiming;
        this.EndTiming = EndTiming;
    }

    //Get current time from date timestamp
    function GetCurrentTime() {
    var my_current_timestamp;
        my_current_timestamp = new Date();              //stamp current date & time
        return my_current_timestamp.getTime();
        }

    //Stamp current time as start time and reset display textbox
    function StartTiming() {
        this.this_start_time = GetCurrentTime();        //stamp current time
        document.TimeDisplayForm.TimeDisplayBox.value = 0;      //init textbox display to zero
        }

    //Stamp current time as stop time, compute elapsed time difference and display in textbox
    function EndTiming() {
        this.this_end_time = GetCurrentTime();          //stamp current time
        this.this_time_difference = (this.this_end_time - this.this_start_time) / 1000; //compute elapsed time
        document.TimeDisplayForm.TimeDisplayBox.value = this.this_time_difference;      //set elapsed time in display box
        }

var time_object = new timestamp_class(0, 0, 0, 0);  //create new time object and initialize it

//-->
</script>

    <form>
        <input type="button" value="Start" onClick="time_object.StartTiming()"; name="StartButton">
    </form>
    <form>
        <input type="button" value="Finish" onClick="time_object.EndTiming()"; name="EndButton">
    </form>
    <form name="TimeDisplayForm">
    Elapsed time:
      <input type="text" name="TimeDisplayBox" size="6">
    seconds
    </form>