https://xemantic.com/old/js/jquery.scrollto.js

1/*!
2 * jquery.scrollto.js 0.0.1 - https://github.com/yckart/jquery.scrollto.js
3 * Scroll smooth to any element in your DOM.
4 *
5 * Copyright (c) 2012 Yannick Albert (http://yckart.com)
6 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php).
7 * 2013/02/17
8 **/
9$.scrollTo = $.fn.scrollTo = function(x, y, options){
10    if (!(this instanceof $)) return $.fn.scrollTo.apply($('html, body'), arguments);
11
12    options = $.extend({}, {
13        gap: {
14            x: 0,
15            y: 0
16        },
17        animation: {
18            easing: 'swing',
19            duration: 800,
20            complete: $.noop,
21            step: $.noop
22        }
23    }, options);
24
25    return this.each(function(){
26        var elem = $(this);
27        elem.stop().animate({
28            scrollLeft: !isNaN(Number(x)) ? x : $(y).offset().left + options.gap.x,
29            scrollTop: !isNaN(Number(y)) ? y : $(y).offset().top + options.gap.y
30        }, options.animation);
31    });
32};