$(document).ready(function(){

	$(".js_toptit").hover(function() {
		$(this).find("em").animate({opacity: "show", bottom: "5"}, "fast");
	}, function() {
		$(this).find("em").animate({opacity: "hide", bottom: "-10"}, "fast");
	});


	$(".js_pietit").hover(function() {
		$(this).find("em").animate({opacity: "show", bottom: "5"}, "fast");
	}, function() {
		$(this).find("em").animate({opacity: "hide", bottom: "-10"}, "fast");
	});

});