window.addEvent("domready", function() {
  $$('a.vlink').each(function(instance,index) {
    instance._ix = index;
    instance.addEvent('click', function(event) {
      $$('a.vlink').removeClass('selected');
      this.addClass('selected');

      $$('div.vitem').setStyle('display', 'none');
      $$('div.vitem')[this._ix].setStyle('display', '');
      return false;
    });
  });
});