d = new Date();
minuteValue = d.getMinutes();
if (minuteValue < 10)
    minuteValue = "0" + minuteValue

hourValue = d.getHours();
if (hourValue == 0)
   {
   greeting = "Good morning, ";
   timeText = " It's now " + (hourValue+12) + ":" + minuteValue + " am";
   }
else if (hourValue < 12)
    {
    greeting = "Good morning!";
    timeText = " It's now " + hourValue + ":" + minuteValue + " am";
    }
else if (hourValue == 12)
    {
    greeting = "Good afternoon!";
    timeText = " It's now " + hourValue + ":" + minuteValue + " pm";
    }
else if (hourValue < 17)
    {
    greeting = "Good afternoon!";
    timeText = " It's now " + (hourValue-12) + ":" + minuteValue + " pm";
    }
else
    {
    greeting = "Good evening!";
    timeText = " It's now " + (hourValue-12) + ":" + minuteValue + " pm";
    }
document.open();
document.write(greeting);