rem: this.listeners[type].pop(); 
add: if (this.listeners[type] != null) { this.listeners[type] = new Array(); } 
context:     remove: function(type) {        this.listeners[type].pop();    },
meta: 8310	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8310/585ec9e1925e77aba80432fe9f9a398a8ecfa8e1/Events.js/buggy/lib/OpenLayers/Events.js