https://www.autotest.de/wp-content/themes/CherryFramework/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		if (_this.length != 0) {
28			init();
29		}
30
31		function init(){
32			thisOffsetTop = parseInt(_this.offset().top);
33			thisMarginTop = parseInt(_this.css("margin-top"));
34			thisOuterHeight = parseInt(_this.outerHeight(true));
35
36			if(getOptions.pseudo){
37				$('<div class="pseudoStickyBlock"></div>').insertAfter(_this);
38				pseudoBlock = $('.pseudoStickyBlock');
39				pseudoBlock.css({"position":"relative", "display":"block"});
40			}
41
42			if(getOptions.active){
43				addEventsFunction();
44			}
45		}//end init
46
47		function addEventsFunction(){
48			_document.on('scroll', function() {
49				tmpScrolled = $(this).scrollTop();
50					if (tmpScrolled > lastScrollValue){
51						scrollDir = 'down';
52					} else {
53						scrollDir = 'up';
54					}
55				lastScrollValue = tmpScrolled;
56
57				if(getOptions.correctionSelector.length != 0){
58					correctionValue = getOptions.correctionSelector.outerHeight(true);
59				}else{
60					correctionValue = 0;
61				}
62
63				documentScroll = parseInt(_window.scrollTop());
64				if(thisOffsetTop - correctionValue < documentScroll){
65					_this.addClass('isStuck');
66					getOptions.listenSelector.addClass('isStuck');
67					if(getOptions.pseudo){
68						_this.css({position:"fixed", top:correctionValue});
69						pseudoBlock.css({"height":thisOuterHeight});
70					}else{
71						_this.css({position:"fixed", top:correctionValue});
72					}
73				}else{
74					_this.removeClass('isStuck');
75					getOptions.listenSelector.removeClass('isStuck');
76					if(getOptions.pseudo){
77						_this.css({position:"relative", top:0});
78						pseudoBlock.css({"height":0});
79					}else{
80						_this.css({position:"absolute", top:0});
81					}
82				}
83			}).trigger('scroll');
84
85			_document.on("resize", function() {
86				if(_this.hasClass('isStuck')){
87					if( thisOffsetTop != parseInt(pseudoBlock.offset().top) ) thisOffsetTop = parseInt(pseudoBlock.offset().top);
88				} else {
89					if( thisOffsetTop != parseInt(_this.offset().top) ) thisOffsetTop = parseInt(_this.offset().top);
90				}
91			})
92		}
93	}//end tmStickUp function
94})(jQuery)