add:       this.events.addEventType("tileloaded");  
context:     initialize: function(name, url, params, options) {        OpenLayers.Layer.HTTPRequest.prototype.initialize.apply(this,                                                                 arguments);        this.grid = new Array();    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/921347a81abbd7e6bd7240cfea7c075b0b7cfbdc/Grid.js/buggy/lib/OpenLayers/Layer/Grid.js