function popup(pag,largura,altura,barra)
{
	var Wnd = window.open(pag,"Janela","toolbar=no,location=no,directories=no,scrollbars="+barra+",resizable=no,width="+largura+ ",height="+altura+ ",status=no,left=2, top=2");
		Wnd.focus();
}
//popup('popup.php',573,399);