function selectall() {
  for (var i = 0; i < document.browse.elements.length; i++) {
    var e = document.browse.elements[i];
    if (e.type == 'checkbox') {
      e.checked = true;
    }
  }
}

function unselectall() {
  for (var i = 0; i < document.browse.elements.length; i++) {
    var e = document.browse.elements[i];
    if (e.type == 'checkbox') {
      e.checked = false;
    }
  }
}

function showHideMenu(popup) {
  var menu = document.getElementById( 'alignmentViewPopup' );
  if( popup.value == 'fasta' ) {
    menu.display = 'none';
//    menu.style = 'hidden';
  }
  else {
//    menu.style = 'visible';
    menu.display = 'block';
  }
}