datetoday = new Date();
timenow=datetoday.getTime();
datetoday.setTime(timenow);
thehour = datetoday.getHours();
if (thehour > 17) display = "Goedenavond";
else if (thehour >11) display = "Goedemiddag";
else display = "Goedemorgen";
var greeting = (display + ", ");
document.write(greeting);