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('&');
4999	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4999/15b6168787a6a25fd1fbbc41a3a5227b899071a9/prototype.js/clean/wp-includes/js/scriptaculous/prototype.js