HTML footer always at the bottom

stickyFooter.js

/// Keep footer always at the bottom, even when the page is too short
stickyFooter = function() {
    jQuery(document).ready(function() {
        var footer = jQuery("footer");
        var body = jQuery(document.body);
        var win = jQuery(window);
        var fixed = false;
        var positionFooter = function() {
            var footerHeight = fixed ? footer.outerHeight() : 0;
            if ((body.outerHeight() + footerHeight) < win.outerHeight()) {
                footer.css({
                    "position": "absolute",
                    "bottom": 0
                });
                fixed = true;
            } else {
                footer.css({
                    "position": "static"
                });
                fixed = false;
            }
        };
        win.scroll(positionFooter);
        win.resize(positionFooter);
        positionFooter();
    });
};

stickyFooter();