bifrost/libs/PageFactory.inc

<?php
class PageFactory {
	public static function getInstance() {
		return new PageFactory();
	}
	public function create($action) {
		switch($action) {
			case "generic":
				return GenericPage::getInstance();
			case "submit":
				return SubmitPage::getInstance();
			case "ajaxsubmit":
				return AjaxSubmitPage::getInstance();
			default:
				return NotFoundPage::getInstance();
		}
	}
}