code: function() {
          var activated = OpenLayers.Strategy.prototype.activate.call(this);
          if(activated) {
              if(this.auto) {
                  if(typeof this.auto === "number") {
                      this.timer = window.setInterval(
                          OpenLayers.Function.bind(this.save, this),
                          this.auto * 1000
                      );
                  } else {
                      this.layer.events.on({
                          "featureadded": this.triggerSave,
                          "afterfeaturemodified": this.triggerSave,
                          scope: this
                      });
                  }
              }
          }
          return activated;
      }
docs: APIMethod: activate
  Activate the strategy.  Register any listeners, do appropriate setup.
  
  Returns:
  {Boolean} The strategy was successfully activated.