add:  if (this.options == null) { this.options = new Object(); } 
context:     addOptions: function (newOptions) {                // update our copy for clone        OpenLayers.Util.extend(this.options, newOptions);        // add new options to this        OpenLayers.Util.extend(this, newOptions);    },
meta: 8310	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8310/1603d5a8ba7dfaaa2dc66305ecce6bf0c8d5b4fc/Layer.js/clean/lib/OpenLayers/Layer.js