var now=new Date();
function weekday(){ 
myArray = new Array(6);
myArray[0] = "星期日"
myArray[1] = "星期一"
myArray[2] = "星期二"
myArray[3] = "星期三"
myArray[4] = "星期四"
myArray[5] = "星期五"
myArray[6] = "星期六"
weekday = now.getDay();
document.write(myArray[weekday])
}