window.addEvent('domready', function(){
  var transition = 'alternate';  
  var slideAvailable = ['slide-left', 'slide-right', 'slide-top', 'slide-bottom', 'fade'];
  var slideTransition = function(){
    switch(transition){
      case 'alternate':
        if(! $defined(this.count)) this.count = -1;
        return slideAvailable[++this.count % slideAvailable.length];
      case 'random': return slideAvailable.getRandom();
      default: return transition;
    }
  }  
	
	new BarackSlideshow('menuconferencistas', 'picturesconferencistas', 'loading', {transition: slideTransition, auto: true, autostart:true, autointerval:10000});
});