https://arriva.pl/public/js/class/conf.js

1var Conf = function () {
2    
3    var confTab = {};
4    
5    return {
6        setData : function(confTabAdd) {
7            
8            for (var attribute in confTabAdd) {
9                confTab[attribute] = confTabAdd[attribute];
10            }
11            
12        },
13        
14        getData : function(key) {
15            if(arguments.length===0) {
16                return confTab;
17            } else if(arguments.length===1 && confTab.hasOwnProperty(key)) {
18                return confTab[key];
19            } else {
20                return null;
21            }
22        }
23
24    };
25    
26};