                         for (var n = 0; n < cnt; ++n) {                             var key = '';                             for (var ki = 0; ki < keySize; ++ki) {                                 var charCode = ba[offset++];                                 if (charCode != 0) {                                     key += String.fromCharCode(charCode);                                 }                             }                              var childOffset = bwg_readOffset(ba, offset);                             offset += 0;                          