<!DOCTYPE HTML>
<html lang="en">
<meta http-equiv=“CACHE-CONTROL” content=”NO-CACHE”>
<head>
</head>
<body>
<!-- Insert anything you want to appear on the page here. Knowledge of HTML is required. -->
<script type="text/javascript">
function numberOfDays(year,month,day)
{dateFuture = new Date(year,month-1,day,23,59,59);
dateNow = new Date();
amount = dateFuture.getTime() - dateNow.getTime();
amount = Math.floor(amount/1000);
days=Math.floor(amount/86400);
}
numberOfDays(2022,4,11)
<!-- Change date in previous line. -->
document.title = days + " days until trip"
</script>
</body>
</html>