add: this.projection = null; 
context:     destroy: function(setNewBaseLayer) {        if (setNewBaseLayer == null) {            setNewBaseLayer = true;        }        if (this.map != null) {            this.map.removeLayer(this, setNewBaseLayer);        }        this.map = null;        this.name = null;        this.div = null;        this.options = null;        if (this.events) {            this.events.destroy();        }        this.events = null;    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/abe2a52c31153017e73019fa4c0fe41c8ce3e957/Layer.js/clean/lib/OpenLayers/Layer.js