rem: .split("").filter(function (el) { return chars.indexOf(el) != -1; }).join(""); 
add: name = name.split("").filter(function (el) { return chars.indexOf(el) != -1; }).join(""); 
context:                   .split("").filter(function (el) {                                      return chars.indexOf(el) != -1;                                    }).join("");
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/c5b8e2d95e4dfec4f4c95dfe37b3cf1a54bcbb82/nsSearchService.js/clean/browser/components/search/nsSearchService.js