now =new Date()
nowday = new Date()
hour = now.getHours()
if (hour < 12) {
document.write(" 早上好!")
} else if (hour < 18){
document.write("下午好!")
} else if (hour >= 18) {
document.write("晚上好!")
}

function initArray()
{
this.length = initArray.arguments.length
for (var i = 0; i < this.length; i++)
this[i+1] = initArray.arguments[i]
}

var WeekArray = new initArray("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
var MonthArray = new initArray("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
document.write(nowday.getYear()+0000,"年");
document.write(MonthArray[(nowday.getMonth()+1)],"");
document.write(nowday.getDate()+"日");