function(doc) {
    if (doc.type != 'transfer') return;
    emit(doc.date, doc);
}

function(keys, values, rereduce) {
  var res = {"interest": {}, "moves": {}};
  for (var v in values) {

    var doc = values[v];
    if (doc.text.split(' ', 1)[0] == "Interest") {
      var part = res['interest'];
    } else {
      var part = res['moves'];
    }

    for (var k in doc.transfer) {
      var prev = 0;
      if (part[k] != undefined) {
        prev = part[k];
      }
      part[k] = prev + doc.transfer[k];
    }

  }
  
  return res;
}