Implement smooth scroll for all internal page links.

smooth-scroll.jquery.js

// Smooth Scroll
$('a[href*="#"]:not([href="#"])').click(function () {
    var target = $(this.hash);
    if (target.length) {
        var isInternalLink = new RegExp('/' + window.location.host + '/');
        if (isInternalLink.test(this.href)) {
            $('html, body').animate({scrollTop: target.offset().top}, 1000);
            return false;
        }
    }
});