function showToday(){
	var WEEK=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
	var today=new Date();
	var stringToday=today.getFullYear()+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日 "+WEEK[today.getDay()];
	return stringToday;
}