Как внедрить highslide java script в modx?

<script type="text/javascript" src="/highslide/highslide.js"></script>
<link rel="stylesheet" type="text/css" href="/highslide/highslide.css" />
<script type="text/javascript">
    // override Highslide settings here
    // instead of editing the highslide.js file
    hs.graphicsDir = '/highslide/graphics/';
</script>

class="highslide" onclick="return hs.expand(this)"