text: /*
   * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
   */
  
  L.Map.mergeOptions({
  	doubleClickZoom: true
  });
  
  L.Map.DoubleClickZoom = L.Handler.extend({
  	addHooks: function () {
  		this._map.on('dblclick', this._onDoubleClick, this);
  	},
  
  	removeHooks: function () {
  		this._map.off('dblclick', this._onDoubleClick, this);
  	},
  
  	_onDoubleClick: function (e) {
  		var map = this._map,
  		    zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1);
  
  		if (map.options.doubleClickZoom === 'center') {
  			map.setZoom(zoom);
  		} else {
  			map.setZoomAround(e.containerPoint, zoom);
  		}
  	}
  });
  
  L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
  