function utf16to8(str) {      var out, i, len, c;      out = "";      len = str.length;      for(i = 0; i < len; i++) {      c = str.charCodeAt(i);      if ((c >= 0x0001) && (c <= 0x007F)) {          out += str.charAt(i);      } else if (c > 0x07FF) {          out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));          out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));          out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));      } else {          out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));          out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));      }      }      return out;  }