1 if(window.ActiveXObject) {document.documentElement.addBehavior("#default#userdata");};
 2 
 3   var Cache ＝ {
 4     set : function(key, value) {
 5       if(window.ActiveXObject) {//for ie5.0+
 6         with(document.documentElement){
 7           try{
 8             load(key);
 9             setAttribute("js", value);
10             save(key);
11           }catch (ex){
12             setAttribute("js", value);
13             save(key);
14           };
15         };
16       }else if(window.sessionStorage) {//for firefox2.0+
17         sessionStorage.setItem(key, value);
18       };
19     },
20     get : function(key) {
21       if(window.ActiveXObject) {
22         with(document.documentElement){
23           try{
24             load(key);
25             return getAttribute("js");
26           }catch (ex){
27             return null;
28           };
29         };
30       }else if(window.sessionStorage) {
31         return sessionStorage.getItem(key);
32       }else{
33         return null;
34       };
35     },
36     remove : function(key) {
37       if(window.ActiveXObject) {
38         with(document.documentElement){
39           try{
40             load(key);
41             expires = new Date(315532799000).toUTCString();
42             save(key);
43           }catch (ex){};
44         };
45       }else if(window.sessionStorage) {
46         sessionStorage.removeItem(key);
47       };
48     }
49   }