window.addEvent('domready', function() { 
  
  var Tips1 = new Tips($$('.certificate'), {
	className: 'tool-tip',
	offset: {'x': -16, 'y': 16}
});
  
  /* Animation script for header ad */
  
  var showDuration = 5000;
  var container = $('heads');
  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 next = function() {
    images[currentIndex].fade('out');
    images[currentIndex = currentIndex < images.length - 1 ? currentIndex+1 : 0].fade('in');
    updateIndex();
  };
  
  var updateIndex = function(){
  	$('ad-index').set('text', currentIndex+1+'/'+images.length);
  };
  
  var prev = function() {
  	images[currentIndex].fade('out');
    images[currentIndex = currentIndex > 0 ? currentIndex-1 : images.length-1].fade('in');
    updateIndex();
  }; 
  
  /* start once the page is finished loading */
  window.addEvent('load',function(){
    interval = next.periodical(showDuration);
    updateIndex();
  });
  
  $('bt_next').addEvent('click', function(){
    	next();
    	return false;
  });
  
  $('bt_prev').addEvent('click', function(){
    	prev();
    	return false;
  });
  
  $('medias-bt').addEvent('click', function(){
        $('medias-bt').addClass('active');
        $('solutions-bt').removeClass('active');
  		$('medias').setStyle('display','block');
  		$('solutions').setStyle('display','none');
  		return false;
  });
  
  $('solutions-bt').addEvent('click', function(){
        $('medias-bt').removeClass('active');
        $('solutions-bt').addClass('active');
  		$('medias').setStyle('display','none');
  		$('solutions').setStyle('display','block');
  		return false;
  });
});