https://www.aeecq.org/js/toggle_fd.js

1// Utf-8 é
2
3//*
4// MODAL WINDOW
5// By Francois Dupras
6function toggle(targetElement) {
7	if(typeof(targetElement) != 'object' && targetElement != "" && targetElement != null && targetElement != undefined)
8		targetElement = document.getElementById(targetElement);
9	if(typeof(targetElement) != 'object' || targetElement == null) return false;
10
11	if (targetElement.style.display == "none") {
12		toggleOn(targetElement);
13	}
14	else {
15		toggleOff(targetElement);
16	}
17}
18
19function toggleOn(targetElement) {
20	if(typeof(targetElement) != 'object')
21		targetElement = document.getElementById(targetElement);
22	if(typeof(targetElement) != 'object') return false;
23
24	targetElement.style.display = "";
25}
26
27function toggleOff(targetElement) {
28	if(typeof(targetElement) != 'object')
29		targetElement = document.getElementById(targetElement);
30	if(typeof(targetElement) != 'object' || targetElement == null) return false;
31
32	targetElement.style.display = "none" ;
33}
34
35function toggleBlock(id)
36{
37
38	if (document.getElementById)
39	{
40		if (document.getElementById(''+id+'').style.display == "block")
41			document.getElementById(''+id+'').style.display = "none";
42		else
43			document.getElementById(''+id+'').style.display = "block";
44	}
45	else if (document.layers)
46	{
47		if (document.layers[''+id+''].visibility == "show")
48			document.layers[''+id+''].visibility = "hide";
49		else
50			document.layers[''+id+''].visibility = "show";
51	}
52}
53
54        function toggle_event(id)
55        {
56            document.getElementById(id).style.display='block';
57
58        }