JavaSript Simple Router

var Router = (function () {
    var Router = function () {};

    Router.prototype.add = function (path, callback) {
        this.routes = this.routes || [];
        this.routes.push({
              path: new RegExp(path.replace(/\//g, "\\/").replace(/:(\w*)/g,"(\\w*)"))
            , callback: callback
        });
    };

    Router.prototype.process =  function () {
        var route
           , params;
        for (route in this.routes) {
            params = window.location.pathname.match(route.path);
            if (params) {
                route.callback(params);
                return;
            }
        }
    };

    return Router;

})();

Router = new Router();

Router.add('/blog/:id', blogCallback);

function blogCallback () {
    alert('OK');
}

$(document).ready(function(){
    Router.process();
});