http://www.abigailvigoa.com/wp-content/themes/abigail/js/tmstickup.js?ver=1.0.0

1(function($){
2	$.fn.tmStickUp=function(options){ 
3		
4		var getOptions = {
5			correctionSelector: $('.correctionSelector')
6		,	listenSelector: $('.listenSelector')
7		,	active: false
8		,	pseudo: true
9		}
10		$.extend(getOptions, options); 
11
12		var
13			_this = $(this)
14		,	_window = $(window)
15		,	_document = $(document)
16		,	thisOffsetTop = 0
17		,	thisOuterHeight = 0
18		,	thisMarginTop = 0
19		,	thisPaddingTop = 0
20		,	documentScroll = 0
21		,	pseudoBlock
22		,	lastScrollValue = 0
23		,	scrollDir = ''
24		,	tmpScrolled
25		;
26
27		init();
28		function init(){
29			thisOffsetTop = parseInt(_this.offset().top);
30			thisMarginTop = parseInt(_this.css("margin-top"));
31			thisOuterHeight = parseInt(_this.outerHeight(true));
32
33			if(getOptions.pseudo){
34				$('<div class="pseudoStickyBlock"></div>').insertAfter(_this);
35				pseudoBlock = $('.pseudoStickyBlock');
36				pseudoBlock.css({"position":"relative", "display":"block"});
37			}
38
39			if(getOptions.active){
40				addEventsFunction();
41			}
42		}//end init
43
44		function addEventsFunction(){
45			_document.on('scroll', function() {
46				tmpScrolled = $(this).scrollTop();
47					if (tmpScrolled > lastScrollValue){
48						scrollDir = 'down';
49					} else {
50						scrollDir = 'up';
51					}
52				lastScrollValue = tmpScrolled;
53
54				if(getOptions.correctionSelector.length != 0){
55					correctionValue = getOptions.correctionSelector.outerHeight(true);
56				}else{
57					correctionValue = 0;
58				}
59
60				documentScroll = parseInt(_window.scrollTop());
61				if(thisOffsetTop - correctionValue < documentScroll){
62					_this.addClass('isStuck');
63					getOptions.listenSelector.addClass('isStuck');
64					if(getOptions.pseudo){
65						_this.css({position:"fixed", top:correctionValue});
66						pseudoBlock.css({"height":thisOuterHeight});
67					}else{
68						_this.css({position:"fixed", top:correctionValue});
69					}
70				}else{
71					_this.removeClass('isStuck');
72					getOptions.listenSelector.removeClass('isStuck');
73					if(getOptions.pseudo){
74						_this.css({position:"relative", top:0});
75						pseudoBlock.css({"height":0});
76					}else{
77						_this.css({position:"absolute", top:0});
78					}
79				}
80			}).trigger('scroll');
81		}
82	}//end tmStickUp function
83})(jQuery)