sticky.js

js nsu.ru collected 2026-09-24 08:48:13 UTC 614 bytes, 25 lines download raw bytes

1var StickyElement = function(node){
2  var doc = $(document),
3      fixed = false,
4      anchor = node.find('.sticky-anchor'),
5      content = node.find('.sticky-content');
6
7  var onScroll = function(e){
8    var docTop = doc.scrollTop(),
9        anchorTop = anchor.offset().top;  
10    if(docTop > anchorTop){
11      if(!fixed){
12        anchor.height(content.outerHeight());
13        content.addClass('fixed');
14        fixed = true;
15      }
16    }  else   {
17      if(fixed){
18        anchor.height(0);
19        content.removeClass('fixed');
20        fixed = false;
21      }
22    }
23  };
24  $(window).on('scroll', onScroll);
25};

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