var today=new Date();
function initArray()
{
   this.length=initArray.arguments.length
   for(var i=0;i<this.length;i++)
   this[i+1]=initArray.arguments[i]  
}
var d=new initArray(" 星期日"," 星期一"," 星期二"," 星期三"," 星期四"," 星期五"," 星期六");
document.write("今天是：",today.getYear(),"年",today.getMonth()+1,"月",today.getDate(),"日",d[today.getDay()+1]);