Write a JavaScript program to find the reverse of a number.
For example if the number is 123 then the reverse is 321.
<html>
<head>
<title>Reverse of a number</title>
</head>
<body>
<script>
var n = parseInt(prompt("Enter the number", ""));
var rev = 0;
while(n > 0)
{
rev = rev * 10 + (n%10);
n = parseInt(n / 10);
}
document.write("Reverse of given number is : " + rev);
</script>
</body>
</html>
