function showweek() //显示中文星期 
{now = new Date() //定义新对象，new具有Date的性质 
if (now.getDay() == 0) return ("星期日") 
if (now.getDay() == 1) return ("星期一") 
if (now.getDay() == 2) return ("星期二") 
if (now.getDay() == 3) return ("星期三") 
if (now.getDay() == 4) return ("星期四") 
if (now.getDay() == 5) return ("星期五") 
if (now.getDay() == 6) return ("星期六") 
} 
function showdate() //显示系统日期 
{ 
var now = new Date() 
var year = now.getYear() 
var month = now.getMonth()+1 
var day = now.getDate() 
return year+"年"+month+"月"+day+"日" 
}