function download(sermon_id) {
  var input = eval("document.forms.download_form_"+ sermon_id +".download_select_"+ sermon_id);
  if (!input.value) {
    input.style.background = "#ff5544";
    return;
  }
  document.location = "?page=download&sermon_id="+ sermon_id +"&text="+ input.value;
}