public Attribute add(String attributeName, String attributeValue, String attributeNamespace)
    throws LtInvalidNamespaceException;
public Attribute add(String attributeName, String attributeValue)
    throws LtInvalidNamespaceException;
public Attribute add(String attributeName)
    throws LtInvalidNamespaceException
public Attribute add(Attribute attrib)
  Property Name add  
  Argument - attributeNameThe name of the new attribute to be created 
  Argument - attributeValueThe value of the attribute 
  Argument - attributeNamespaceThe namespace the attribute will be a part of (if this is not defined then the namespace is taken from the parent element) 
  Argument - attribAn existing attribute to copy into this elements collection. 
  ReturnsThe newly created attribute. 
  DescriptionAdds an attribute to the collection 
  Remarks May throw an exception if the namespace is invalid or the attribute allready exists in the collection