https://www.kfs.go.jp/js/slidemenu.js

1//Timeout your Mouseovers (http://www.pjhyett.com/articles/2006/07/05/timeout-your-mouseovers)
2
3var menu_1 = {
4 timeout : null,
5 showPopup : function(){
6  clearTimeout(this.timeout);
7  if($('menu_1').style.display == 'none'){
8   this.timeout = setTimeout(function(){new Effect.BlindDown('menu_1', {duration:.3, fps:40})},400);
9  }
10 },
11 hidePopup : function(){
12  if($('menu_1').style.display == 'none'){
13   clearTimeout(this.timeout);
14  }else{
15   this.timeout = setTimeout(function(){new Effect.BlindUp('menu_1', {duration:.3, fps:40})},300);
16  }
17 }
18}
19
20var menu_2 = {
21 timeout : null,
22 showPopup : function(){
23  clearTimeout(this.timeout);
24  if($('menu_2').style.display == 'none'){
25   this.timeout = setTimeout(function(){new Effect.BlindDown('menu_2', {duration:.3, fps:40})},400);
26  }
27 },
28 hidePopup : function(){
29  if($('menu_2').style.display == 'none'){
30   clearTimeout(this.timeout);
31  }else{
32   this.timeout = setTimeout(function(){new Effect.BlindUp('menu_2', {duration:.3, fps:40})},300);
33  }
34 }
35}
36
37var menu_3 = {
38 timeout : null,
39 showPopup : function(){
40  clearTimeout(this.timeout);
41  if($('menu_3').style.display == 'none'){
42   this.timeout = setTimeout(function(){new Effect.BlindDown('menu_3', {duration:.3, fps:40})},400);
43  }
44 },
45 hidePopup : function(){
46  if($('menu_3').style.display == 'none'){
47   clearTimeout(this.timeout);
48  }else{
49   this.timeout = setTimeout(function(){new Effect.BlindUp('menu_3', {duration:.3, fps:40})},300);
50  }
51 }
52}