Easy routes with javascript and hash

easyRoutes.js

(function() {
    var Router = function(routes) {
        var hash;
        
        var splitParams = function() {
            for (route in routes) {
                var routeRegex = "^" + route.replace(/:([A-z0-9_-]*)/g, "([A-z0-9_-]*)") + "(/?)$";

                var callRoute = routes[route];
                var matches = new RegExp(routeRegex).exec(hash);
                
                if (matches) {
                    matches.shift();
                    callRoute.apply(this, matches);
                    break;
                }
            }
        };

        var checkHash = function() {
            if (window.location.hash != hash) {
                hash = window.location.hash;
                splitParams();
            }
        };

        if ('onhashchange' in window) {
            window.addEventListener('hashchange', checkHash);
        } else {
            window.setInterval(checkHash, 200);
        }

        if (!window.location.hash) {
            window.location.hash = "#/";
        }

        checkHash();
    };

    var controller = new Router({
        "#/": function() {
            console.log('start');
        },

        "#/user/:id": function(id) {
            console.log("Opening", id);
        },
        
        "#/user/:id/edit": function(id) {
            console.log("Editing", id);
        },

        "#/user/:id/:curriculum": function(id, curriculum) {
            console.log("Editing " + id + " with curriculum " + curriculum);
        },

        "#/help": function() {
            console.log('help');
        }
    });
})();