toggle and switch layers called my mapbox.js

event.js

layer.onclick = function(e) {
          e.preventDefault();
          e.stopPropagation();
          //Something here that disables all layers before proceeding to the next step
          // e.g. 
          $.each(map.layers, function(l) {
              l.disable();
          });
          map.getLayer(this.id).enabled ? map.getLayer(this.id).disable() : map.getLayer(this.id).enable();
          this.className = map.getLayer(this.id).enabled ? 'active' : '';
      };