MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
$(window).on('load', function() {
    setTimeout(function() {
        var $footer = $('#footer');
        $footer.css('margin-top', '0');
        var contentHeight = $footer.offset().top + $footer.outerHeight();
        var windowHeight = $(window).height();
        if (contentHeight < windowHeight) {
            $footer.css('margin-top', (windowHeight - contentHeight) + 'px');
        }
    }, 100);
});