function ModifyText ()
{
if (YD.hasClass(document.body, "gallery_4557398")) 
{
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);