return this.map(function(pair) { return pair.map(encodeURIComponent).join('='); }).join('&'); 
return this.select(function(value) { return !values.include(value); }); 
    return this.map(function(pair) {      return pair.map(encodeURIComponent).join('=');    }).join('&');
6462	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6462/328e05b227c420e11178ba4eb2eb0e10862b193f/prototype.js/clean/wp-includes/js/prototype.js