$(document).ready(function(){
    $('#slider').nivoSlider({
        pauseTime:5000,
				effect: 'fade'
    });
    
    $('#iconesMeio li').hover(
        function(){ $(this).find('div.descricao:hidden').fadeIn(500);},
        function(){ $(this).find('div.descricao:visible').fadeOut(500); }
    );
});