joomla/com_wk1_4/site/wk1.php

<?php
/** 
* @package     Joomla.Administrator 
* @subpackage  com_wk1 
* 
* @copyright 
*/
    // No direct access to this file
defined('_JEXEC') or die('Restricted access'); 
wkTrace("com wk1 scope=" . JFactory::getApplication()->scope . ', component', JComponentHelper::getComponent(JFactory::getApplication()->scope));
    // Get an instance of the controller prefixed by wk1
$controller = JControllerLegacy::getInstance('Wk1'); 
    // Perform the Request task
$input = JFactory::getApplication()->input;
wkTrace("com wk1 task=" . $input->getCmd('task'));
$controller->execute($input->getCmd('task')); 
// Redirect if set by the controller
$controller->redirect();
?>