rem: return this.select(function(value) { return value != undefined || value != null; 
add: this.each(function(value, index) { if (!iterator(value, index)) results.push(value); 
context:     return this.select(function(value) {      return value != undefined || value != null;    });
meta: 1782	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1782/a458ebb30ee90b66048c7fd858f5f39957a9be68/prototype.js/clean/webapp/sandbox/scripts/prototype.js