Form builder; Add an OpenID identity.
function openid_user_add() {
$form['openid_identifier'] = array(
'#type' => 'textfield',
'#title' => t('OpenID'),
);
$form['actions'] = array(
'#type' => 'actions',
);
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => t('Add an OpenID'),
);
return $form;
}