return this.collect(Prototype.K); 
return this.map(); 
  toArray: function() {    return this.collect(Prototype.K);  },
742	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/742/53dfa93e53bccf5af1729cbdce88cb70e1ffcca5/prototype.js/clean/public/javascripts/prototype.js