Simple content smoth navigation.

smoth.js

/* Smoth content navigation */
$('.menu .link', '.context').on('click',function (e) {
    e.preventDefault();
    var target = this.hash,
    $target = $(target);
    $('html, body').stop().animate({
        'scrollTop': $target.offset().top
    }, 900, 'swing', function () {
        window.location.hash = target;
    });
});