$(document).ready(function() {
						   
	// pour forcer le chargement de l'image, sinon l'anim ne démarre pas si l'image est deja dans le cache
	var src=$('.animation_partenaires li:first img').attr("src");
	var img = new Image();
	
	$(img).load(function() {
		//$(this).css('visibility','visible');		
		$('.animation_partenaires').cycle({
			fx: 'fade',
			before: onBefore,
			timeout:  3000// choose your transition type, ex: fade, scrollUp, shuffle, etc...
		});
	});
	
	img.src=src;
	
});

function onBefore(curr,next,opts) {
	
    var $slide = $(next);
    var w = $slide.width();
    var h = $slide.height();
	/*var ul_w = $slide.parents('ul').width();
	var ul_h = $slide.parents('ul').height();*/
	/*if(ul_w==0) */ul_w=299;
	/*if(ul_h==0) */ul_h=136;
    $slide.css({
        marginTop: (ul_h - h) / 2,
        marginLeft: (ul_w - w) / 2
    });
};