AddNewEx(ByVal attributeName as String, [attributeNamespace], [sValue]) as AttributeCls
  Property Description  
    Property Name AddNew  
    Argument - attributeName The name of the new attribute to be created  
    Argument - attributeNamespace The namespace the attribute will be a part of (if this is not defined then the namespace is taken from the parent element)  
    Argument - sValue The value of the attribute to be inserted  
    Returns The newly created attribute.  
    Description Adds an attribute to the collection  
    Remarks May throw an exception if the namespace is invalid or the attribute allready exists in the collection