/// <summary>
 /// Adds a new attribute node.
 /// </summary>
 /// <param name="NewAttr">The attribute node to add.</param>
 /// <returns>The added node.</returns>
 public Attr SetAttributeNodeNS(Attr NewAttr)
 {
     return(Attr.Create(element.setAttributeNodeNS((IDOMAttr)NewAttr.GetWebKitObject())));
 }