function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function pop(file) 
{
window.open('imagem2.php?File=' + file, 'foto', 'width=600,height=450,top=20,left=20,toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=yes');
}