https://albaconsul.com/wp-content/themes/salient/js/sticky.js?ver=1.0

1(function($) {
2
3  var $headerHeight = $('#header-outer').outerHeight() + 34;	
4  var $extraHeight = ($('#wpadminbar').length > 0) ? 28 : 0; //admin bar
5  var secondaryHeader = ($('#header-outer').attr('data-using-secondary') == '1') ? 33 : 0 ;
6  
7  $(window).load(function(){
8   	 $headerHeight = $('#header-outer').outerHeight() + 34;	
9     $extraHeight = ($('#wpadminbar').length > 0) ? 28 : 0; //admin bar
10  });
11 
12  $.fn.extend({
13    stickyMojo: function(options) {
14
15      var settings = $.extend({
16        'footerID': '',
17        'contentID': '',
18        'orientation': $(this).css('float')
19      }, options);
20
21      var sticky = {
22        'el': $(this),  
23        'stickyLeft': $(settings.contentID).outerWidth() + $(settings.contentID).offset.left,
24        'stickyTop2': $(this).offset().top,
25        'stickyHeight': $(this).outerHeight(true),
26        'contentHeight': $(settings.contentID).outerHeight(true),
27        'win': $(window),
28        'breakPoint': $(this).outerWidth(true) + $(settings.contentID).outerWidth(true),
29        'marg': parseInt($(this).css('margin-top'), 10)
30      };
31
32      var errors = checkSettings();
33      cacheElements();
34
35      return this.each(function() {
36        buildSticky();
37      });
38
39      function buildSticky() { 
40        if (!errors.length) {
41          sticky.el.css('left', sticky.stickyLeft);
42
43          sticky.win.bind({
44            'scroll': stick,
45            'resize': function() {
46              sticky.el.css('left', sticky.stickyLeft);
47              sticky.contentHeight = $(settings.contentID).outerHeight(true);
48              sticky.stickyHeight =  sticky.el.outerHeight(true);
49
50              stick();
51              toLiveOrDie();
52            }
53          });
54          
55          setTimeout(function(){  toLiveOrDie();  },600);
56          
57        } else {
58          if (console && console.warn) {
59            console.warn(errors);
60          } else {
61            alert(errors);
62          }
63        }
64      }
65	  
66	  //destroy sticky sidebar if the sidebar is shorter than the content area
67	  function toLiveOrDie(){
68
69	  	if(parseInt($('#sidebar').height()) + 50 >= parseInt($('#post-area').height())) {
70      	 	sticky.win.unbind('scroll', stick);
71      	 	sticky.el.removeClass('fixed-sidebar');
72      	 	sticky.el.css({
73      	 		'position':'relative',
74      	 		'top' : 0,
75      	 		'margin-left' : 0,
76      	 		'bottom' : 0
77      	 	});
78      	 }
79      	 else {
80      	 	sticky.win.unbind('scroll', stick);
81      	 	sticky.win.bind('scroll', stick);
82      	 	sticky.el.addClass('fixed-sidebar');
83      	 }
84
85         if($('#sidebar').length > 0) {
86
87           if($(window).scrollTop() < 100) { 
88              sticky.stickyTop2 = $('#sidebar').offset().top;
89              sticky.marg = parseInt($('#sidebar').css('margin-top'), 10);
90            }
91         }
92	  }
93	  
94      // Caches the footer and content elements into jquery objects
95      function cacheElements() {
96        settings.footerID = $(settings.footerID);
97        settings.contentID = $(settings.contentID);
98      }
99
100      //  Calcualtes the limits top and bottom limits for the sidebar
101      function calculateLimits() {
102
103        return {
104          limit: settings.footerID.offset().top - sticky.stickyHeight - $headerHeight - $extraHeight - secondaryHeader,
105          windowTop: sticky.win.scrollTop(),
106          stickyTop: sticky.stickyTop2 - sticky.marg - $headerHeight - $extraHeight - secondaryHeader
107        }
108      }
109
110      // Sets sidebar to fixed position
111      function setFixedSidebar() {
112        sticky.el.css({
113          position: 'fixed',
114          right: 'auto',
115          top: $headerHeight + $extraHeight + secondaryHeader,
116          bottom : 'auto'
117        });
118      }
119
120      // Determines the sidebar orientation and sets margins accordingly
121      function checkOrientation() {
122        if (settings.orientation === "left") {
123          settings.contentID.css('margin-left', sticky.el.outerWidth(true));
124        } else {
125          sticky.el.css('margin-left', settings.contentID.outerWidth(true));
126        }
127      }
128
129      // sets sidebar to a static positioned element
130      function setStaticSidebar() {
131        sticky.el.css({
132          'position': 'static',
133          'margin-left': '0px',
134          'bottom' : 'auto'
135        });
136        settings.contentID.css('margin-left', '0px');
137      }
138
139      // initiated to stop the sidebar from intersecting the footer
140      function setLimitedSidebar(diff) {
141
142        sticky.el.css({
143          position: 'absolute',
144          top: 'auto',
145          right: '0',
146          bottom  : -38
147        });
148      }
149
150      //determines whether sidebar should stick and applies appropriate settings to make it stick
151      function stick() {
152        var tops = calculateLimits();
153        var hitBreakPoint = tops.stickyTop < tops.windowTop && (sticky.win.width() >= sticky.breakPoint);
154		$headerHeight = $('#header-outer').outerHeight() + 34;	
155		
156        if (hitBreakPoint) {
157          setFixedSidebar();
158          checkOrientation();
159        } else {
160          setStaticSidebar();
161        }
162        if (tops.limit < tops.windowTop) {
163          var diff = tops.limit - tops.windowTop;
164          setLimitedSidebar(diff);
165        }
166
167      }
168
169      // verifies that all settings are correct
170      function checkSettings() {
171        var errors = [];
172        for (var key in settings) {
173          if (!settings[key]) {
174            errors.push(settings[key]);
175          }
176        }
177        ieVersion() && errors.push("NO IE 7");
178        return errors;
179      }
180
181      function ieVersion() {
182        if(document.querySelector) {
183          return false;

184        }
185        else {
186          return true;
187        }
188      }
189    }
190  });
191})(jQuery);