function xprofile_ajax_reorder_fields() {

	// Check the nonce.
	check_admin_referer( 'bp_reorder_fields', '_wpnonce_reorder_fields' );

	if ( empty( $_POST['field_order'] ) ) {
		return false;
	}

	parse_str( $_POST['field_order'], $order );

	$field_group_id = $_POST['field_group_id'];

	foreach ( (array) $order['draggable_field'] as $position => $field_id ) {
		xprofile_update_field_position( (int) $field_id, (int) $position, (int) $field_group_id );
	}
}