https://www.mext.go.jp/common/js/share.js

1//////////////////////////////////////////
2//初期化
3if(navigator.userAgent.indexOf("Firefox/2")!=-1 || navigator.userAgent.indexOf("Netscape")!=-1){
4	document.write ('<style type="text/css">#contentsMain table.borderStyle caption{padding-left:30px;}</style>');
5}
6//////////////////////////////////////////
7
8
9//////////////////////////////////////////
10//ロールオーバースクリプト
11//<img src="XXXX" width="XX" height="XX" alt="XX" class="Rover" />
12//<input name="submit" type="image" src="XXXX" alt="XX" class="Rover" />
13//////////////////////////////////////////
14function ROfunction(){
15	var imgNum=document.getElementsByTagName("img");
16	var inputNum=document.getElementsByTagName("input");
17	overNum=new Array;
18	for(i=0;i<imgNum.length;i++){overNum[i]=imgNum[i];}
19	for(i=0;i<inputNum.length;i++){overNum[i+imgNum.length]=inputNum[i];}
20	for(i=0;i<overNum.length;i++){
21		if(overNum[i].className.indexOf("Rover")!=-1){
22			overNum[i].overimg=new Image();
23			if(overNum[i].className.indexOf(":")!=-1){
24				Replace=overNum[i].className.split(":");
25				Replace=Replace[1].split(" ");
26				overNum[i].overimg.src=Replace[0];
27			}else{
28				Replace = overNum[i].src.length;
29				overNum[i].overimg.src=overNum[i].src.substring(0,Replace-4)+"_o"+overNum[i].src.substring(Replace-4,Replace);
30			}
31			overNum[i].setAttribute("out",overNum[i].src);
32			overNum[i].onmouseover=new Function('this.src=this.overimg.src;');
33			overNum[i].onmouseout=new Function('this.src=this.getAttribute("out");');
34		}
35	}
36}
37window.onload=ROfunction;
38
39document.addEventListener('DOMContentLoaded', function() {
40  const inpageLinksData =[]
41  const inpageLink = document.querySelectorAll('.inpageLinkTitle');
42  const inpageLinkArray = Array.prototype.slice.call(inpageLink);
43  inpageLinkArray.forEach((val) => {
44    const inpageLinks = {};
45    inpageLinks.id = val.getAttribute('id');
46    inpageLinks.text = val.innerHTML;
47    inpageLinksData.push(inpageLinks);
48  })
49
50  const inpageLinksBox = this.getElementById('inpageLinks');
51  inpageLinksData.forEach((val) => {
52    const elemLI = document.createElement("li");
53    const elemA = document.createElement("a");
54
55    elemA.setAttribute('href','#' + val.id);
56    elemA.innerHTML = val.text;
57    elemLI.appendChild(elemA);
58    inpageLinksBox.appendChild(elemLI);
59  });
60  if(!inpageLink.length) {
61    const linkBox = document.querySelector('.inpageLinksBox');
62    if (linkBox) {
63      linkBox.remove();
64    }
65  }
66});