window.addEvent('domready', function(){
  var slideAvailable = ['slide-left', 'slide-right', 'slide-top', 'slide-bottom', 'fade'];
  var slideTransition = function(){
		return slideAvailable.getRandom();
    }
  var slideshow = new BarackSlideshow('menu_slide', 'pictures', 'loading', {transition: slideTransition, auto: true});
});