you can make use of osclass enqueue function to include stylesheet and javascript files.
to include stylesheets
osc_enqueue_style('uniqueNameCSS', 'path/and/file.css');
to include javascript files
osc_register_script('uniqueNameJS', 'path/and/file.js?', array('jquery'));
osc_enqueue_script('uniqueNameJS');
the parameter array('jquery') is important to ensure that this file is loaded after jquery is loaded... put this to your theme functions.php or in this file where all other styles and scripts are loaded