function abrefoto(foto,alt) {
	url = "fotos.php?f=" + foto + "&a=" + alt;
	PUCRS_IDEIA_janela = window.open(url,'PUCRS_IDEIA',"toolbar=no,location=no,directories=no,menubar=no,status=no,scrollbars=0,resizable=yes,width=255,height=255");
	PUCRS_IDEIA_janela.focus();
}