function writeDate(){//顶部时间日期
var dayNames = new Array("星期天","星期一","星期二","星期三","星期四","星期五","星期六");

var monthNames = new Array(
"1","2","3","4","5","6","7","8","9","10","11","12");

var now = new Date();
document.write( now.getFullYear()+"年"+monthNames[now.getMonth()] + "月" + now.getDate() + "日 / "+dayNames[now.getDay()] );
}�