$(document).ready(function() {
	//settings
	
	var opacity = 0.6, toOpacity = 1, duration = 0;
	//set opacity ASAP and events
	$('.opacidade img').css('opacity',opacity).hover(function() {
			$(this).fadeTo(duration,toOpacity);
		}, function() {
			$(this).fadeTo(duration,opacity);
		}
	);


	var opacityfade = 1, toOpacityfade = 0.0, durationfade = 300;
	//set opacity ASAP and events
	$('.opacidadefade img').css('opacityfade',opacityfade).hover(function() {
			$(this).fadeTo(durationfade,toOpacityfade);
		}, function() {
			$(this).fadeTo(durationfade,opacityfade);
		}
	);
});