IHTMLDOMAttribute retVal = object.setNamedItem(ppNode);
An IHTMLDOMAttribute that is set with this method does not have to apply to the element.
If an IHTMLDOMAttribute with the same name is already present, it is replaced by the new IHTMLDOMAttribute.
IHTMLAttributeCollection4::setNamedItem was introduced in Microsoft Internet Explorer 6.
Build date: 11/17/2013