diff --git a/app/views/files/index.html.erb b/app/views/files/index.html.erb
index 656baaf63..782efbb22 100644
--- a/app/views/files/index.html.erb
+++ b/app/views/files/index.html.erb
@@ -234,21 +234,23 @@
     //第二种是改变某个tag名称。其他所有的资源如果拥有这个tag。那么对应的tag名也要改掉。
     //目前这两种依据 的来源就是 是否 传了参数 id。如果有id。就指定了资源id，就是第一种情况。如果没有id。就是第二种情况
     function rename_tag(domEle,name,id,type){
-        isdb = true; //这是双击
-        //clearTimeout(clickFunction);
-        if(domEle.children().get(0) != undefined ){ //已经是编辑框的情况下不要动
-            return;
+        if(String(id) != '' || '<%=User.current.allowed_to?(:as_teacher,@course)%>' == 'true' ) { //如果有id ，或者是老师就都能编辑，否则，没有id，不是老师就不能编辑
+            isdb = true; //这是双击
+            //clearTimeout(clickFunction);
+            if (domEle.children().get(0) != undefined) { //已经是编辑框的情况下不要动
+                return;
+            }
+            tagNameHtml = domEle.parent().html()
+            tagName = name;
+            parentCssBorder = domEle.parent().css("border");
+            ele = domEle;
+            tagId = id;
+            taggableType = type;
+            width = parseInt(domEle.css('width').replace('px', '')) >= 100 ? parseInt(domEle.css('width').replace('px', '')) : 100
+            domEle.html('<input name=""  id="renameTagName" maxlength="<%=Setting.tags_max_length%>" minlength="<%= Setting.tags_min_length%>" style="width:' + width + 'px;" value="' + name + '"/>');
+            domEle.parent().css("border", "1px solid #ffffff");
+            $("#renameTagName").focus();
         }
-        tagNameHtml = domEle.parent().html()
-        tagName = name;
-        parentCssBorder = domEle.parent().css("border");
-        ele = domEle;
-        tagId = id;
-        taggableType = type;
-        width = parseInt(domEle.css('width').replace('px','')) >=100 ?  parseInt(domEle.css('width').replace('px','')) : 100
-        domEle.html('<input name=""  id="renameTagName" maxlength="<%=Setting.tags_max_length%>" minlength="<%= Setting.tags_min_length%>" style="width:'+width +'px;" value="'+name+'"/>');
-        domEle.parent().css("border","1px solid #ffffff");
-        $("#renameTagName").focus();
     }
   //监听所有的单击事件
     $(function(){