function AbreJanelaGaleria(URL,width,height) {
  //var width = 580;
  //var height = 390;
  var left = 350;
  var top = 100;

window.open(URL, 'ema3', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=no, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
}