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" 

}