JS cookies without jquery

read_cookie.js

// JS cookies without jquery - looks for the key 'voted_for' in the cookie
        function check_vote(id) {
            cookies = document.cookie.split(";");
            var votes = ''
            for (i = 0; i < cookies.length; i++) {
              k = cookies[i].substr(0,cookies[i].indexOf("="));
              if (k == 'voted_for') {
                v = cookies[i].substr(cookies[i].indexOf("=")+1);
                votes = unescape(v);
                break;
              }
            }
            vote_list = votes.split(',');            
            return ! $.inArray(id, vote_list);
        }