function popUp(URL)
{
  day = new Date();
  id = day.getTime();
  var largura = 430;
  var altura = 390;
  eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width=" + largura + ",height=" + altura + ",left = 0,top = 0');");
}