function abreGaleria(pasta){
	Wwidth  = 920;
	Wheight = 620;

	tamW = screen.width;
	tamH = screen.height;

	posW = (tamW/2) - (Wwidth/2);
	posH = (tamH/2) - (Wheight/2);

	params = ",left="+posW+",top="+posH+",width="+Wwidth+",height="+Wheight+",toolbar=0,menubar=0,scrollbars=no,status=yes";

	endereco = "galeria/index.php?pasta=" + pasta;

	window.open(endereco,'galeria',params);
}