code: function() {
          this.dragPan.activate();
          if (this.zoomWheelEnabled) {
              this.handlers.wheel.activate();
          }    
          this.handlers.click.activate();
          if (this.zoomBoxEnabled) {
              this.zoomBox.activate();
          }
          if (this.pinchZoom) {
              this.pinchZoom.activate();
          }
          return OpenLayers.Control.prototype.activate.apply(this,arguments);
      }
docs: Method: activate