https://bahai-news.info/javascripts/DV/events/ViewAnnotation.js

1DV.Schema.events.ViewAnnotation = {
2  next: function(e){
3    var viewer              = this.viewer;
4    var activeAnnotationId  = viewer.activeAnnotationId;
5    var annotationsModel    = this.models.annotations;
6    var nextAnnotation      = (activeAnnotationId === null) ?
7        annotationsModel.getFirstAnnotation() : annotationsModel.getNextAnnotation(activeAnnotationId);
8
9    if (!nextAnnotation){
10      return false;
11    }
12
13    viewer.pageSet.showAnnotation(nextAnnotation);
14    this.helpers.setAnnotationPosition(nextAnnotation.position);
15
16
17  },
18  previous: function(e){
19    var viewer              = this.viewer;
20    var activeAnnotationId  = viewer.activeAnnotationId;
21    var annotationsModel    = this.models.annotations;
22
23    var previousAnnotation = (!activeAnnotationId) ?
24    annotationsModel.getFirstAnnotation() : annotationsModel.getPreviousAnnotation(activeAnnotationId);
25    if (!previousAnnotation){
26      return false;
27    }
28
29    viewer.pageSet.showAnnotation(previousAnnotation);
30    this.helpers.setAnnotationPosition(previousAnnotation.position);
31
32
33  },
34  search: function(e){
35    e.preventDefault();
36    this.viewer.open('ViewSearch');
37
38    return false;
39  }
40};