timestamp=0;                                                                                                                                   
mytime = new Date;                                                                                                                                     
myyear = mytime.getYear();                                                                                                                                     
mymonth = mytime.getMonth()+1;                                                                                                                                     
mydate = mytime.getDate();                                                                                                                                     
myweekday = mytime.getDay(); 

myhour=mytime.getHours();
myminute=mytime.getMinutes();
mysecond=mytime.getSeconds();                                                                                                                                    
                                                                                                                                    
switch(myweekday){                                                                                                                                     
case 0: myweekday = "星期日";break;                                                                                                                                     
case 1: myweekday = "星期一";break;                                                                                                                                     
case 2: myweekday = "星期二";break;                                                                                                                                     
case 3: myweekday = "星期三";break;                                                                                                                                     
case 4: myweekday = "星期四";break;                                                                                                                                     
case 5: myweekday = "星期五";break;                                                                                                                                     
case 6: myweekday = "星期六";break;                                                                                                                                     
}                                                                                                                                     
                                                                                                                                    
timeStr = myyear+"年"+mymonth+"月"+mydate+"日"+"  "+myweekday+"";                                                                                                                                     
//timestamp.innerHTML = timeStr; 
                                                                                                                                    
function showdate()
{
timeStr =myyear+"年"+mymonth+"月"+mydate+"日"+" "+myhour+":"+myminute;   
return timeStr;
}