function moveItemInto(aItem, aParent) {
  var tags = Application.bookmarks.tags.id;
  if (
      !aItem.parent ||
      !aParent ||
      aItem.parent.id == tags ||
      aParent.id == tags ||
      (aItem.parent.parent && aItem.parent.parent.id == tags) ||
      (aParent.parent && aParent.parent.id == tags) ||
      aParent.type != 'folder'
  )
  return;
  aItem.parent = aParent;
}