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How can i manipulate dom in controller in emberjs?
carousel: function() {
  var context = this.get('controller'),
      self = this;

  if(context.get('loading') === false) {
    setTimeout(function() {
      var width = self.$('#page_wrapper').width(),
          num   = self.$('.page').size();
      self.$('#pages').width(width * num);
      self.$('.page').width(width);
      console.log([width, num]);
      console.log(context.get('elements'));
    }, 100);
  }
}.observes('controller.loading')