function y2k(number) { return (number < 1000) ? number + 1900 : number; } 
var now = new Date(); 
var dd = now.getDate() , mt = now.getMonth() + 1 , yy = y2k(now.getYear()) , weekVal = now.getDay(); 
if (weekVal==0) 
msg1="星期日"; 
else if (weekVal==1) 
msg1="星期一"; 
else if (weekVal==2) 
msg1="星期二"; 
else if (weekVal==3) 
msg1="星期三"; 
else if (weekVal==4) 
msg1="星期四"; 
else if (weekVal==5) 
msg1="星期五"; 
else if (weekVal==6) 
msg1="星期六"; 

document.write(yy+"-"+mt+"-"+dd+"  "+msg1);