function y2k(number){return(number<1000)?number+1900:number;} 
function dispdate(){ 
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+"年"+mt+"月"+dd+"日 "+msg1); 
}