public GeckoNode ReplaceChild(GeckoNode newChild, GeckoNode oldChild)
{
if (newChild == null)
{
throw new ArgumentNullException("newChild");
}
if (oldChild == null)
{
throw new ArgumentNullException("oldChild");
}
_DomObject.ReplaceChild(newChild._DomObject, oldChild._DomObject);
return(newChild);
}
