if(_.isFunction(this.onStateChange)) {
this.onStateChange(changes);
if(_.isBoolean(changes.active)) {
if(_.isFunction(this.onStateChange)) {
this.onStateChange(changes);
if(_.isBoolean(changes.active)) {
// })
this.dom.css('display', what);
this._container().css('display', what);
// })
this.dom.css('display', what);
this._container().css('display', what);