File Source for lookup

<?php
/**
* @package boards
* @subpackage functions
*/
/**
* required setup
*/
require_once( BOARDS_PKG_PATH.'BitBoardTopic.php');
require_once( BOARDS_PKG_PATH.'BitBoardPost.php' );
require_once( BOARDS_PKG_PATH.'BitBoard.php' );
// if t supplied, use that
if( @BitBase::verifyId( $_REQUEST['t'] ) ) {
$gContent = new BitBoardTopic( $_REQUEST['t'] );
// if p supplied, use that
} elseif( @BitBase::verifyId( $_REQUEST['p'] ) ) {
$gContent = new BitBoardPost( $_REQUEST['p'] );
} elseif( @BitBase::verifyId( $_REQUEST['b'] ) ) {
$gContent = new BitBoard( $_REQUEST['b'] );
} elseif (isset($_REQUEST['p'])) {
$gContent = new BitBoardPost();
// otherwise create new object
} elseif( isset( $_REQUEST['t'] ) || isset( $_REQUEST['migrate_topic_id'] ) || isset( $_REQUEST['migrate_post_id'] ) ) {
$gContent = new BitBoardTopic();
} else {
$gContent = new BitBoard();
}
$gContent->load();
$gBitSmarty->assign_by_ref( "gContent", $gContent );
?>

Source for file lookup_inc.php