function abrirFoto(qual, numero, width, height) {
	var w = parseInt(width);
	var h = parseInt(height);
	var l = (screen.width - w) / 2 ;
	var	t = (screen.height - h) / 2;
	var janela = window.open(qual, numero,'toolbar=no, status=no, scrollbars=no, width='+w+', height='+h+', resizeable=no, menuBar=no,top='+t+',left='+l);
	janela.focus();
}