+ cleanBeforeDestroy: function() {
+ document.removeEventListener('visibilitychange', this.visibilityChange);
+ if (!!this.askLastate)
+ clearInterval(this.askLastate);
+ if (!!this.retrySendmove)
+ clearInterval(this.retrySendmove);
+ if (!!this.clockUpdate)
+ clearInterval(this.clockUpdate);
+ this.send("disconnect");
+ },