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(

     "<span style='font-family: arial;height: 30px;line-height: 30px;'>今天是：",

     today.getFullYear(),"年",

     today.getMonth()+1,"月",

     today.getDate(),"日&nbsp;",

     d[today.getDay()+1],

     "</span>" );