#transparente {		
	filter:alpha(Opacity=80);
	-moz-opacity : 0.8;
	opacity: .8;	
}

#contato-menu li a {
	filter:alpha(Opacity=80);
	-moz-opacity : 0.8;
	opacity: .8;
}

#contato-menu li a:hover {
	filter:alpha(Opacity=100);
	-moz-opacity: 1.0;
	opacity: 1.0;
}

#hidden {
	filter:alpha(Opacity=0);
	-moz-opacity : 0;
	opacity: 0;
}