code: function htmlToText(html) {
      var pos = html.indexOf('&');
      if (pos < 0) { return html; }
      // Handle numeric entities specially.  We can't use functional substitution
      // since that doesn't work in older versions of Safari.
      // These should be rare since most browsers convert them to normal chars.
      for (--pos; (pos = html.indexOf('&#', pos + 1)) >= 0;) {
        var end = html.indexOf(';', pos);
        if (end >= 0) {
          var num = html.substring(pos + 3, end);
          var radix = 10;
          if (num && num.charAt(0) === 'x') {
            num = num.substring(1);
            radix = 16;
          }
          var codePoint = parseInt(num, radix);
          if (!isNaN(codePoint)) {
            html = (html.substring(0, pos) + String.fromCharCode(codePoint) +
                    html.substring(end + 1));
          }
        }
      }
  
      return html.replace(pr_ltEnt, '<')
          .replace(pr_gtEnt, '>')
          .replace(pr_aposEnt, "'")
          .replace(pr_quotEnt, '"')
          .replace(pr_nbspEnt, ' ')
          .replace(pr_ampEnt, '&');
    }
docs: unescapes html to plain text.