var tx_wtgallery_slideshow = function(els){
	var container = $$(els);
	var i=0;
	container.each(function(item, index){
		elements = item.getElements('table.wtgallery_list');
		if(elements.length > 1){
			var current = null;
			var next = null;
			elements.each(function(el, idx){
				if(!current && el.getStyle('visibility') != 'hidden'){
					current = el;
				}else if(current && !next){
					next = el;
				} 	
			});
			if(!next){
				next = elements[0];
			}
			new Fx.Morph(current, {duration: 500}).start({
				'opacity': 0
			}).chain(function(){
				next.setStyles({
					'visibility': 'visible',
					'opacity': 0,
					'z-index': -100
				});
				new Fx.Morph(next, {duration: 1000}).start({
					'opacity': 1,
					'z-index': 100
				});
			});
		}
	});
	
	
	
}

window.addEvent('domready', function(){
	tx_wtgallery_slideshow.periodical(4000, this, 'div.wtgallery_partenaires');
});