[Joomla] Load CSS and Javascript

Load CSS:

$document =& JFactory::getDocument();
$document->addStyleSheet('http://localhost/css/style.css');

Load Javascript:

$document =& JFactory::getDocument();
$document->addScript('http://localhost/js/script.js');

jQuery noConflict():

$document =& JFactory::getDocument();
$document->addScript('http://localhost/js/script.js');
$document->addScriptDeclaration('jQuery.noConflict()');

Note: In loading a script, the path should be a url, not a directory.