hypothetical/resources/assets/js/app.js

// run once the document is ready
$(document).ready(function() {
    $('footer').stickyFooter({ content: '#page-content' });
    $(window).load(function() { $(this).trigger('resize'); });

    switch (SiteVars.page) {
        case '':
            subscriptionFormInit();
            break;
        case 'contact':
            contactFormInit();
            break;
    }
});