return this.select(function(value) { return value != undefined || value != null; }); 
}).sort(function(left, right) { var a = left.criteria, b = right.criteria; return a < b ? -1 : a > b ? 1 : 0; }).pluck('value'); 
    return this.select(function(value) {      return value != undefined || value != null;    });
6462	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6462/328e05b227c420e11178ba4eb2eb0e10862b193f/prototype.js/clean/wp-includes/js/prototype.js