function showGallery(){
  document.getElementById('hidethis').style.display = 'none';
  document.getElementById('photo').style.position = 'relative';
  document.getElementById('photo').style.left = '11px';
}
function hideGallery(){
  document.getElementById('photo').style.position = 'absolute';
  document.getElementById('photo').style.left = '-1000px';
  document.getElementById('hidethis').style.display = 'inline';
}