List of getBaseUrl() parameters

* Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_JS);
http://magesite.extension/js/

* Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_LINK);
http://magesite.extension/index.php/

* Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);
http://magesite.extension/media/

* Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_SKIN);
http://magesite.extension/skin/

* Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB);
http://magesite.extension/

If you don’t provide any parameters to getBaseUrl() function you would retrieve the same path as with URL_TYPE_LINK parametar.

Remember, you need to echo out these statements to the browser, because they each return a string, so you need to output that string like

echo Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB);