code: function(map) {
          this.drawn = false;
          if(this.strategies) {
              var strategy, i, len;
              for(i=0, len=this.strategies.length; i<len; i++) {
                  strategy = this.strategies[i];
                  if(strategy.autoActivate) {
                      strategy.deactivate();
                  }
              }
          }
      }
docs: Method: removeMap
  The layer has been removed from the map.
  
  Parameters:
  map - {<OpenLayers.Map>}