Base url in joomla module

Evening, I've implented some AJAX functions in a Joomla module. Now when I activate SEF, the AJAX is not working anymore. This is because the path to the external php file is changed..To fix this I need to add the base url, now the question is: how to get the base url in the following: ``` remote: "modules/mod_module/libs/elements/db_checker.php" ``` so it should be something like ``` remote: "<?php echo $baseurl; ?>modules/mod_module/libs/elements/db_checker.php" ``` so the full link should become ``` remote: "http://www.mysite.com/modules/mod_module/libs/elements/db_checker.php" ``` I cant get URI to work, please assist me with this Thanks in advance UPDATE fixed it myself:) this is the fix: ``` <?php echo JURI::root().'modules/mod_module/libs/elements/db_checker.php'; ?> ```