js media player 没有权限

Question

在js 设置播放列表的时候出现的错误 <script language="javascript" type="text/javascript">
function de(obj){
//alert(obj);
var play=document.getElementById("Player");
playlist=play.currentPlaylist;
var item=playlist.item(obj);
playlist.removeItem(item);var sonlist=document.getElementById("Hidden1").value;
var sontitlelist=document.getElementById("Hidden2").value
var sonidlist=document.getElementById("Hidden3").value
var sonerlist=document.getElementById("Hidden4").value
var songarr=sonlist.split(",");
var songtarr=sontitlelist.split(",");
var songidarr=sonidlist.split(",");
var songerarr=sonerlist.split(",");
var newtitle="";
var newname="";
var newid="";
var newser="";
for(var i=0;i<songarr.length;i++){if(i!=obj){newtitle=newtitle+songtarr[i]+",";
newname=newname+songarr[i]+",";
newid=newid+songidarr[i]+",";
newser=newser+songerarr[i]+",";}}document.getElementById("Hidden1").value=newname.substring(0,newname.lastIndexOf(","));
document.getElementById("Hidden2").value=newtitle.substring(0,newtitle.lastIndexOf(","));
document.getElementById("Hidden3").value=newid.substring(0,newid.lastIndexOf(","));
document.getElementById("Hidden4").value=newser.substring(0,newser.lastIndexOf(","));;
var newtarr=newtitle.substring(0,newtitle.lastIndexOf(",")).split(",");
var newnarr=newname.substring(0,newname.lastIndexOf(",")).split(",");
var newidarr=newid.substring(0,newid.lastIndexOf(",")).split(",");
var newserarr=newser.substring(0,newser.lastIndexOf(",")).split(",");
rck(newid.substring(0,newid.lastIndexOf(",")));
setlist2(newnarr,newtarr,newidarr,newserarr);}function setlist2(ob1,ob2,ob3,ob4){
listlabel.innerHTML="<ul>";
var songarr=ob1;
var songtarr=ob2;
var songidarr=ob3;
var songerarr=ob4;for(var i=0;i<songarr.length;i++){listlabel.innerHTML=listlabel.innerHTML+"<li id='li"+i+"' style='width:300px; float:left; margin:0 0 0 10px; display:inline; color:#427594; height:24px; line-height:24px; border-bottom:#1d394c 1px dashed;'><p style='float:left; width:20px; color:#427594'>"+(i>=9 ? i+1 :"0"+(i+1))+"</p><span style='float:left; color:#2e556d'><a  style='color:#427594; cursor:hand;' onclick='pl("+i+");' > "+songtarr[i]+"</a> - "+songerarr[i]+"</span><label style='float:right; margin:0 10px 0 0;'><a onclick='de("+i+");'><img src='images/pic_26.jpg' /></a><a href='song_dis.aspx?mid="+songidarr[i]+"' target='dis'><img src='images/pic_24.jpg' /></a></label></li>";
}listlabel.innerHTML=listlabel.innerHTML+"</ul>"if(songarr[0]==""){listlabel.innerHTML="";};}function pl(obj){var play=document.getElementById("Player");
playlist=play.currentPlaylist;
play.controls.stop();
play.controls.currentItem=playlist.item(obj);
play.controls.play();}function setlist(){
listlabel.innerHTML="<ul>";
var play=document.getElementById("Player");
playlist=play.currentPlaylist;
var sonlist="<%=songname %>";
var sontitlelist="<%=songtitle%>";
var sonidlist="<%=songid%>";
var sonerlist="<%=songser%>";
var songarr=sonlist.split(",");
var songtarr=sontitlelist.split(",");
var songidarr=sonidlist.split(",");
var songerarr=sonerlist.split(",");
for(var i=0;i<songarr.length;i++){
currMedia=play.newMedia("/music_media/"+songarr[i]);playlist.appendItem(currMedia);  查看脚本错误时就出现在这里listlabel.innerHTML=listlabel.innerHTML+"<li id='li"+i+"' style='width:300px; float:left; margin:0 0 0 10px; display:inline; color:#427594; height:24px; line-height:24px; border-bottom:#1d394c 1px dashed;'><p style='float:left; width:20px; color:#427594'>"+(i>=9 ? i+1 :"0"+(i+1))+"</p><span style='float:left; color:#2e556d'><a  style='color:#427594; cursor:hand;' onclick='pl("+i+");' > "+songtarr[i]+"</a> - "+songerarr[i]+"</span><label style='float:right; margin:0 10px 0 0;'><a onclick='de("+i+");'><img src='images/pic_26.jpg' /></a><a href='song_dis.aspx?mid="+songidarr[i]+"' target='dis'><img src='images/pic_24.jpg' /></a></label></li>";
}
listlabel.innerHTML=listlabel.innerHTML+"</ul>"
if(songarr[0]==""){listlabel.innerHTML="";};
play.controls.play();
} function chall(obj){
     
    
      
      if(document.getElementById(obj).checked){
      
      names=document.getElementsByName("checkboxs");
      t=document.getElementsByName("checkboxs").length;
      
       for(i=0;i<t;i++){
       
        names[i].checked=true;
        
         }
         
          }else{ 
          
          names=document.getElementsByName("checkboxs");
          t=document.getElementsByName("checkboxs").length;
          
           for(i=0;i<t;i++){
           
             names[i].checked=false;
             
               }
               
                }
                
                }
    
    function chnum(){
  
      var ns=false;
      names=document.getElementsByName("checkboxs");
      t=document.getElementsByName("checkboxs").length;
      var str="";
      for(i=0;i<t;i++){
      if(names[i].checked){
      
      str=str+names[i].value+",";
      ns=true;
      
      }
      
      }
    document.getElementById("ctl00_cp1_delallid").value=str;
   
   return ns;
    
    }
</script>