https://www.iaeaixalumni.org/js/taglib/historymanager.js?version=1790249448

1HistoryManager=function(mngid)
2{
3	this.id=mngid;
4	this.linklist = {};
5	this.addEntry=HistoryManager_addEntry;
6	this.executeEntry=HistoryManager_executeEntry;
7    this.numberItems = 0;
8	// No-op kept for HTML pages cached before CUST-EF-10, whose inline
9	// bootstrap still calls window.historymanager.init("yui-history-field",
10	// "yui-history-iframe") (Sentry ALUMNFORCE-WWW-7HC). Drop once those
11	// cached pages have expired.
12	this.init = function () {};
13}
14
15HistoryManager_executeEntry=function(state)
16{
17    if (state != null && state != "none" && state != window.historymanager.lastloaded) {
18		var id = window.historymanager.linklist[state];
19 		var pl=getCustomTag(id);
20    	if (pl!=null) {
21    		pl.doPost();
22            return true;
23    	}
24    }
25    return false;
26}
27
28HistoryManager_addEntry=function(linkid,value)
29{
30	if (!this.linklist[value]) {
31		this.linklist[value] = linkid;
32        this.numberItems++;
33	}
34
35    if (this.numberItems == 5) {
36        var newLinkList = {};
37        var iter = 1;
38        var self = this;
39        jQuery.each(this.linklist, function(index, link)
40        {
41            if (iter == (self.numberItems)) {
42                newLinkList[index] = link;
43            }
44            iter++;
45        });
46        this.linklist = newLinkList;
47        this.numberItems = 1;
48    }
49}