YE.onAvailable('galleryTitle', function() {this.innerHTML = 'Portfolio'}); 
YE.onAvailable('featuredTitle', function() {this.innerHTML = 'Featured Portfolio'}); 
YE.onAvailable('categoryTitle', function() {this.innerHTML = 'Portfolio Categories'});

function ModifyText ()
{
  if (YD.hasClass(document.body, "gallery_4723538"))
  {
    var objElement = YD.get("comment")
    if (objElement != null)
    {
      var str = new String(objElement.innerHTML);
      str = str.replace(/\gallery/gi, 'guestbook');
      objElement.innerHTML = str;
    }
  }
}

YE.onAvailable("comment", ModifyText);