/*
 * Slideshow code by David Walsh
 * http://davidwalsh.name/mootools-slideshow
 */
window.addEvent('domready',function()
{ 
  /* settings */ 
  var showDuration = 15000; 
  var container = $('bg-container'); 
  var images = container.getElements('img'); 
  var currentIndex = 0; 
  var interval; 

  /* opacity and fade */ 
  images.each(function(img,i)
  {  
     if (i > 0)
        img.set('opacity',0); 
  }); 

  /* worker */ 
  var show = function()
  { 
     images[currentIndex].fade('out'); 
     images[currentIndex = currentIndex < images.length - 1 ? currentIndex+1 : 0].fade('in'); 
  }; 

  /* start once the page is finished loading */ 
  window.addEvent('load',function()
  { 
     interval = show.periodical(showDuration); 
  }); 
});