https://www.aflac-as.com/themes/over.js

1function Open(id){
2  if(document.getElementById(id).style.display=="none"){
3    document.getElementById(id).style.display = "block";
4  }
5  else{
6    document.getElementById(id).style.display = "none";
7  }
8}
9
10
11function Rollovers() {
12	if (!document.getElementById) return
13
14	var aPreLoad = new Array();
15	var sTempSrc;
16	var aImages = document.getElementsByTagName('img');
17
18	for (var i = 0; i < aImages.length; i++) {	
19		if (aImages[i].className == 'ov') {
20			var src = aImages[i].getAttribute('src');
21			var ftype = src.substring(src.lastIndexOf('.'), src.length);
22			var hsrc = src.replace(ftype, '_on'+ftype);
23
24			aImages[i].setAttribute('hsrc', hsrc);
25
26			aPreLoad[i] = new Image();
27			aPreLoad[i].src = hsrc;
28
29			aImages[i].onmouseover = function() {
30				sTempSrc = this.getAttribute('src');
31				this.setAttribute('src', this.getAttribute('hsrc'));
32			}	
33
34			aImages[i].onmouseout = function() {
35				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on'+ftype, ftype);
36				this.setAttribute('src', sTempSrc);
37			}
38		}
39	}
40}
41
42function init() {
43	Rollovers();
44}
45
46window.onload = init;