diff -r b06345320ffb -r eb77616c245f src/widgets/AnnotationsController.js
--- a/src/widgets/AnnotationsController.js	Tue Sep 01 15:24:26 2015 +0200
+++ b/src/widgets/AnnotationsController.js	Tue Sep 01 15:31:46 2015 +0200
@@ -15,7 +15,7 @@
     display_or_write: false,
     starts_hidden: false,
     hide_without_segment: false,
-    segments_annotation_type: "chap"
+    segments_annotation_type: "chap",
 };
 
 IriSP.Widgets.AnnotationsController.prototype.template = 
@@ -57,7 +57,17 @@
             _this.player.trigger("CreateAnnotation.hide");
         }
     })
-    this.onMediaEvent("timeupdate", "onTimeUpdate")
+    
+    if(this.hide_without_segment){
+        this.onMediaEvent("timeupdate", function(){
+            _this.refresh();
+        })
+        this.onMediaEvent("settimerange", function(_timeRange){
+            _this.refresh(_timeRange);
+        })
+        this.segments = this.source.getAnnotationsByTypeTitle(this.segments_annotation_type)
+        this.currentSegment = false
+    }
     
     if (this.starts_hidden) {
         this.visible = true
@@ -70,25 +80,53 @@
     
 };
 
-IriSP.Widgets.AnnotationsController.prototype.onTimeUpdate = function(){
+IriSP.Widgets.AnnotationsController.prototype.refresh = function(_timeRange){
+    _timeRange = typeof _timeRange !== 'undefined' ? _timeRange : false ;
+    
+    if(!_timeRange){
+        if (this.media.getTimeRange()){
+            _timeRange = this.media.getTimeRange();
+        }
+    }
+    
     if (this.hide_without_segment){
-        _currentTime = this.media.getCurrentTime() 
-        _segmentsAnnotations = this.source.getAnnotationsByTypeTitle(this.segments_annotation_type)
-        _currentSegments = _segmentsAnnotations.filter(function(_segment){
-            return (_currentTime >= _segment.begin && _currentTime <= _segment.end)
-        });
-        if (_currentSegments.length == 0){
+        if (!_timeRange && !this.media.getTimeRange()){
+            _currentTime = this.media.getCurrentTime() 
+            _currentSegments = this.segments.filter(function(_segment){
+                return (_currentTime >= _segment.begin && _currentTime <= _segment.end)
+            });
+            if(_currentSegments.length > 0){
+                currentSegment = true;
+            }
+            else {
+                currentSegment = false;
+            }
+        }
+        else {
+            var _timeRangeBegin = _timeRange[0],
+                _timeRangeEnd = _timeRange[1];
+            _currentSegments = this.segments.filter(function(_segment){
+                return (_timeRangeBegin == _segment.begin && _timeRangeEnd == _segment.end)
+            });
+            if(_currentSegments.length > 0){
+                currentSegment = true;
+            }
+            else {
+                currentSegment = false;
+            }
+        }
+        if (!currentSegment && _currentSegments.length == 0){
             if (this.visible){
                 this.hide();
-                _this.player.trigger("CreateAnnotation.hide");
-                _this.player.trigger("AnnotationsList.hide");
+                this.player.trigger("CreateAnnotation.hide");
+                this.player.trigger("AnnotationsList.hide");
             }
         }
         else {
             if (!this.visible){
                 this.show();
-                _this.player.trigger("CreateAnnotation.hide");
-                _this.player.trigger("AnnotationsList.hide");
+                this.player.trigger("CreateAnnotation.hide");
+                this.player.trigger("AnnotationsList.hide");
             }
         }
     }