How code for today's date?

<script type="text/javascript">
<!--
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
var monthNames = ["January", "February", "March", "April", "May", "June",
  "July", "August", "September", "October", "November", "December"];
var d = new Date();
document.write(monthNames[d.getMonth()] + " " + day + ", " + year);
//-->
</script>