$author = $doc->createElement("author");
XML::addElement($doc, $author, "id", $owner["url"]);
XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
XML::addElement($doc, $author, "uri", $owner["url"]);
XML::addElement($doc, $author, "name", $owner["nick"]);
XML::addElement($doc, $author, "email", $owner["addr"]);
$author = $doc->createElement("author");
XML::addElement($doc, $author, "id", $owner["url"]);
XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
XML::addElement($doc, $author, "uri", $owner["url"]);
XML::addElement($doc, $author, "name", $owner["nick"]);
XML::addElement($doc, $author, "email", $owner["addr"]);