function show_loading() {
  $('content').innerHTML = '<div id="loading"><img src="/images/loading.gif" /></div>';
}

function show_image(image_div) {
  Effect.Fade(current_image);
  Effect.Appear(image_div, { queue: 'end' });
  $('li_thumb_' + current_image).className = '';
  $('li_thumb_' + image_div).className = 'selected';
  current_image = image_div;
  for(i=0;i<7; i++) {
    if ($('large_image_' + i)) $('large_image_' + i).hide();
  }
  $('large_' + current_image).show();
}


function show_large_image(hide, action) {
  $('large_image_' + hide).hide();
  if (action == 'prev') {
    $('large_image_' + hide).previous().show();
  } else
  {
    $('large_image_' + hide).next().show();
  }
}

function cycle() {
  next_image = current_image + 1;
  if (next_image > image_count - 1) next_image = 0;
  Effect.Fade('image_' + current_image);
  Effect.Appear('image_' + next_image);
  current_image = next_image;
  setTimeout('cycle()', 5000);
}