https://www.shuwasystem.co.jp/js/lower.js

1var fixedSidebar = {};
2
3$(function(){
4	"use strict";
5
6	// 右カラム追従
7	fixedSidebar = (function(){
8		var w = $(window);
9
10		var contentsWrap = $("#contentsWrap");
11		var main = $("#main");
12		var sub = $("#sub");
13
14		var margin = 36;
15		var top = 0;
16
17		var sub_offset = 0;
18		var stop_height = 0;
19
20		var init = function(){
21			w.load(function(){
22				if(main.outerHeight() > sub.outerHeight()){
23					sub_offset = sub.offset();
24					stop_height = (contentsWrap.offset().top + contentsWrap.outerHeight()) - sub.outerHeight() - margin;
25
26					sub.css({
27						"position": "fixed",
28						"top": sub_offset.top,
29						"right": "auto",
30						"margin-left": 640
31					});
32
33					w.scroll(function(){
34						restart();
35					});
36
37					w.resize(function(){
38						restart();
39					});
40
41					fixed();
42				}
43			});
44		}
45
46		var restart = function(){
47			if(main.outerHeight() > sub.outerHeight()){
48				stop_height = (contentsWrap.offset().top + contentsWrap.outerHeight()) - sub.outerHeight() - margin;
49				fixed();
50			}
51		}
52
53		var fixed = function(){
54			var st = w.scrollTop();
55			if(st >= (sub_offset.top - margin)){
56				if(st >= stop_height){
57					top = margin - (st - stop_height);
58					sub.css({
59						"top": top,
60					});
61				}else{
62					if(top !== margin){
63						sub.css({
64							"top": margin,
65						});
66					}
67				}
68			}else{
69				top = sub_offset.top - st;
70				sub.css({
71					"top": top,
72				});
73			}
74		}
75
76		if(sub.length > 0){
77			init();
78		}
79
80		return {
81			restart: restart
82		};
83	}());
84});
85
86
87$(function(){
88	$('#accordion dt:eq(0)').addClass('active');
89	$('#accordion dt:eq(0) span').text('-');
90	$('#accordion dd:eq(0)').show(); 
91	$('#accordion dt').click(function(){
92		//$('#accordion dd').slideUp();
93		$(this).toggleClass('active');
94		$(this).next().slideToggle();
95		if($(this).hasClass('active')){
96			$(this).children().text('-');
97		}else{
98			$(this).children().text('+');
99		}
100	});
101});