scroll to specific part of page url code example

Example 1: how can when click buton scrool to another elemtn

$("button").click(function() {
    $('html,body').animate({
        scrollTop: $(".second").offset().top},
        'slow');
});

// example: http://jsfiddle.net/ryXFt/3/

Example 2: link that scrolls down the page

<a href="#google"></a>

<div id="google"></div>