text: $(document).ready(function(e) {
      new App($(this));
  });
  
  var App = function($root) {
      this.$root = $root;
      this.login = null;
      this.init();
  };
  
  App.prototype.init = function() {
      if(this.$root.find('.login-index').length !== 0) {
          this.login = new Login(this.$root.find('.login-index'));
      }
  };