function galeria(URL) {
   var width = 590;   var height = 360;   var left = 20;   var top = 20;
   window.open('sistema/frame.php?festa='+URL+'','galeria', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=no, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
}