gistfile1.inc

<?php
function add_slickslide_js($dropdown_options) {
//If we want Thematic dropdown features, we spit back the original options
echo $dropdown_options;
//Then we break out of PHP and add more stuff to the header:
?>
<script type="text/javascript" src="<?php bloginfo('stylesheet_directory'); ?>/js/jquery.js"></script>
<script type="text/javascript" src="<?php bloginfo('stylesheet_directory'); ?>/js/slickslide.js"></script>
<?php
}
add_filter('thematic_dropdown_options','add_slickslide_js');