function Janela(pagina, largura, altura, statusbar, barscroll, posx, posy) 
  {   
window.open(pagina,"","toolbar=no,location=no,status="+statusbar+",menubar=no,resizable=no,scrollbars="+barscroll+",width="+largura+",height="+altura+",left="+posx+",top="+posy);
}