Local search method not found

I trying to use this module for location search, but found that some part of code is just missing...
please add this in your included .js

if(blockSettings.search_options.local_search != 0) {
            var Local = new google.search.LocalSearch();
            setLanguageAndDuplicateContent(blockSettings, Local);
            searchSetSiteRestriction(blockSettings, Local, "local");
            searchControls[delta].addSearcher(Local, searcherOptions[delta]);
        }

Without this i cant find another method for implement google local search in your module....
Thanks