pass id

www/js/autodoc.js

           else {
             var reader = new FileReader();
             file['progress'] = 1;
-            
-            $(reader).on({
-              loadstart: upload_read_event,
-              load: upload_read_event,
-              loadend: upload_read_event,
-              progress: upload_read_event,
-              error: upload_read_event,
-              abort: upload_read_event
-            });
+
+            $(reader).on('load',      id, upload_read_event);
+            $(reader).on('loadstart', id, upload_read_event);
+            $(reader).on('loadend',   id, upload_read_event);
+            $(reader).on('progress',  id, upload_read_event);
+            $(reader).on('error',     id, upload_read_event);
+            $(reader).on('abort',     id, upload_read_event);
+
             reader.readAsArrayBuffer(file.obj);
           }
         }
 }
 
 function upload_read_event(e) {
+  if ( e.type == 'progress' ) {
+    var progress = Math.floor(e.originalEvent.loaded / e.originalEvent.total * 50);
+    if ( percent < 1 ) { percent = 1; }
+    if ( percent >= 100 ) { perc}
+  }
+
+  }
   console.log(e);
 }