var fadein;
var fadeout;

function fadeSlideShow(){   
	var ss=$find("slideShowExtenderBehaviour");
	ss.add_slideChanging(onChanging);
	var ae=$find("animationExtenderBehaviour");
	var be=ae.get_OnLoadBehavior();
	var an=be.get_animation();
	fadein=an.get_animations()[1];
	fadeout=an.get_animations()[0];
	fadein.set_duration(0.5);
	fadeout.set_duration(0.5);
}

function onChanging(sender, args){   
	fadein.play();   
	window.setTimeout("fadeout.play()", 3300);
}