请问一下其中this指代的是谁

 <TD width=371><FONT color=#f3f3f3> 
        <SCRIPT language=JavaScript>
                 today=new Date();
                 var h = today.getHours();
                 var m = today.getMinutes();
                 
                 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(today.getYear(),"年",today.getMonth()+1,"月",today.getDate(),"日",d[today.getDay()+1]); 
                 
</SCRIPT>
        </FONT></TD> 请问一下其中this指代的是谁？