<script language="LiveScript">
now = new Date(),hour = now.getHours()
if(hour < 6){document.write("太晚了，该休息了!!!")}
else if (hour < 8){document.write("早上好!全新的一天开始了!")}
else if (hour < 12){document.write("上午好!工作辛苦了!")}
else if (hour < 14){document.write("中午好!还在上网吗?
……