function pow(artbrazil,nom,winWidth,winHeight)
{
  window.open(artbrazil,nom,"width="+winWidth+",height="+winHeight+",scrollbars=no,");
}


function popupCentralizado(page,largura,altura)
{
var top=(screen.height-altura)/2;
var left=(screen.width-largura)/2;
  options = "resizable=no,location=no,menubar=no,toolbar=no,status=no,scrollbars=no";
window.open(page,"","top="+top+",left="+left+",width="+largura+",height="+altura+","+options);
}