function bringToFront(imgObj) {
  var galleryitem = imgObj.parentNode.parentNode;
  var photogallery = galleryitem.parentNode;

  var galleryitems = photogallery.children;
  if (!galleryitems) galleryitems = photogallery.childNodes;

  for (var i = 0; i < galleryitems.length; i++) {
      galleryitems[i].style.zIndex = 99;

      var gallerythumbnail = galleryitems[i].children;
      if (gallerythumbnail) {
        gallerythumbnail = gallerythumbnail[0];
      } else {
        gallerythumbnail = galleryitems[i].childNodes[0];
      }

      var image = gallerythumbnail.children;
      if (image) {
        image = image[0];
      } else {
        image = gallerythumbnail.childNodes[0];
      }
      
      image.style.opacity = 0.7;
      image.style.filter = "alpha(opacity=70)";
  }
  galleryitem.style.zIndex = 100;
  imgObj.style.opacity = 1.0;
  imgObj.style.filter = "alpha(opacity=100)";
}