function onPersonGot(result) {
  var response = result.get("person");
  if (response.hadError()) {
    output("There was a problem fetching this user: " + 
        response.getErrorCode());
  } else {
    output("Fetched " + 
        result.get("person").getData().getDisplayName());
  }
  gadgets.window.adjustHeight();
};

function closeGetPerson(id) {
  return function() {
    var params = {};
    var req = opensocial.newDataRequest();
    req.add(req.newFetchPersonRequest(id, params), "person");
    req.send(onPersonGot);
  };
};


function closePrintFriend(list) {
  return function(friend) {
    var item = document.createElement("li");
    var link = document.createElement("a");
    var text = document.createTextNode(friend.getDisplayName());
    list.appendChild(item);
    item.appendChild(link);
    item.appendChild(document.createTextNode(" [" + 
        friend.getId() + "]"));
    link.appendChild(text);
    link.onclick = closeGetPerson(friend.getId());
    link.href = "javascript:void(0);";
  };
};

function gotFriends(data) {
  var friends = data.get("of").getData();
  var list = document.createElement("ul");
  var main = document.getElementById("dom_handle")
  main.innerHTML = "";
  main.appendChild(list);
  friends.each(closePrintFriend(list));
  gadgets.window.adjustHeight();
};

function getFriends() {
  var params = {};
  params[opensocial.DataRequest.PeopleRequestFields.MAX] = 1000;
  var req = opensocial.newDataRequest();
  req.add(req.newFetchPeopleRequest(
      opensocial.DataRequest.Group.OWNER_FRIENDS, params), "of");
  req.send(gotFriends);
};

getFriends();