rem: var lastElement = this[this.length - 1]; this.length--; return lastElement; } 
add: var lastElement = this[this.length - 1]; this.length--; return lastElement; } 
context:     Array.prototype.pop = function() {        var lastElement = this[this.length - 1];        this.length--;        return lastElement;    }
meta: 266	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/266/769a5807f342d8541951d74937d724ab38fcafe0/engine.js/buggy/java/uk/ltd/getahead/dwr/engine.js