add: if (!this._enabled) return; 
context:     _footerClickListener: function(event) {        var footer = tw_getEventTarget(event);        this.setSelectedDate(this._today);        var formattedDate = this._getFormattedDate(this._selectedDate);        this.firePropertyChange("selectedDate", formattedDate);        var action = this._getClickAction(event.type, formattedDate);        if (action == null) return;        this.fireAction(action, formattedDate);    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/37796fea05d0eb86951d2f34aedeb66e8b500920/DateBox.js/buggy/src/thinwire/render/web/resources/DateBox.js