/* Função para abrir popup de boleto */
function boleto(url)
{
	w = 700;
	h = 500;
	var winl = (screen.width - w) / 2 - 6;
	var wint = (screen.height - h) / 2;
	
	winprops = 'height=' + h + ',width=' + w + 'top='+wint+',left='+winl+',scrollbars=yes,resizable=no,menubar=yes';
	win = win = window.open(url, "boleto", winprops);
}