13     itemObserver: Ember.observer('player.item', function () {

    13     itemObserver: Ember.observer('player.item', function () {

    14         this.set('autoscroll', true);

    14         this.set('autoscroll', true);

    15     }),

    15     }),

    16 

    16 

    17     didUpdate: function() {

    17     didUpdate: function() {

    19         var target = Ember.$('.sentence.active');

    18         var target = Ember.$('.sentence.active');

    20         if(this.get('autoscroll') && target.length) {

    19         if(this.get('autoscroll') && target.length) {

    21             Ember.$(this.get('autoscrollElement')).animate({

    20             Ember.$(this.get('autoscrollElement')).animate({

    22                 scrollTop: target.offset().top + Ember.$(this.get('autoscrollElement')).scrollTop() - Ember.$(this.get('autoscrollElement')).offset().top - 154

    21                 scrollTop: target.offset().top + Ember.$(this.get('autoscrollElement')).scrollTop() - Ember.$(this.get('autoscrollElement')).offset().top - 154

    23             }, 150);

    22             }, 150);