var thetime = new Date( );
var thehour = thetime.getHours( );

if (thehour < 12) {
document.write("INT. ORIGINALPLOTS.COM - MORNING");
} else if (thehour < 18) {
document.write("INT. ORIGINALPLOTS.COM - AFTERNOON");
} else {
document.write("INT. ORIGINALPLOTS.COM - EVENING");
}