วิธีทำ Loop Countdown Time ทำยังไงครับ? ตอนนี้ผม นับเวลาถอยหลังได้แล้ว แต่ได้แค่ ค่าเดียว อยากได้หลายค่าทำยังไงครับ

<style>
p {
  text-align: center;
  font-size: 12px;
}
</style>
<?php

$w1="select * from pca_ffaa "; 
	$_ww1 = mssql_query($w1) or die ("Error Query [".$w1."]"); 
	
	WHILE($_w1 = mssql_fetch_array($_ww1))
	{			
			$b=$b+1;
			$insert1= date('m/d/Y H:i:s',strtotime($_w1['insert_dt1']));
			$timeout1 = date('m/d/Y H:i:s',strtotime("$insert1 +48 hours "));
	
			//echo "<td align=right width=35>$ID</td>";
	echo "<tr align='center'>";
	echo "<td><font size=1>$b</font></td>";
	echo "<td><font size=1>".trim($_w1['ser_sn'])."</font></td>";
	echo "<td><font size=1>".trim($_w1['model'])."</font></td>";
	echo "<td><font size=1>".trim($_w1['name_user'])."</font></td>";
	echo "<td><font size=1>".trim($_w1['board'])."</font></td>";
	echo "<td><font size=1>".trim($_w1['qty'])."</font></td>";
	echo "<td><font size=1>".date('m/d/Y H:i:s',strtotime($_w1['insert_dt1']))."</font></td>";
	echo "<td><font size=1>".trim($_w1['cqe_pic'])."</font></td>";
	if(trim($_w1['cqe_status']) == '1')
		{
	echo "<td><font face='Arial Narrow' style='font-size: 14px' color=#33FF00><b>Done</b></font></td>";
		}
	else{
	echo "<td><font face='Arial Narrow' style='font-size: 14px' color=#FF0000><b>Undone</b></font></td>";
		}
?>

<script>
// Set the date we're counting down to
var insert1="<?php echo $insert1; ?>";
var timeout1="<?php echo $timeout1; ?>";

// Update the count down every 1 second
var x = setInterval(function() {
var countDownDate = new Date(timeout1).getTime();
var countDownDates = new Date().getTime();
    // Get todays date and time
    
    
    // Find the distance between now an the count down date
    var distance = countDownDate - countDownDates;
    
    // Time calculations for days, hours, minutes and seconds
    var days = Math.floor(distance / (1000 * 60 * 60 * 24));
    var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
    var seconds = Math.floor((distance % (1000 * 60)) / 1000);
    
    // Output the result in an element with id="demo"
    document.getElementById("demo").innerHTML = days + "d " + hours + "h "
    + minutes + "m " + seconds + "s ";
    
    // If the count down is over, write some text 
    if (distance < 0) {
        clearInterval(x);
        document.getElementById("demo").innerHTML = "Time out";
    }
}, 1000);
</script>