startElement(namespaceURI:   String;
             localName:      String;
             qualifiedName:  String;
             attributeCount: Integer);
        The startElement event method of the JadeXMLParser class receives notification of the beginning of an element. The startElement event method parameters are listed in the following table.
| Parameter | Description | 
|---|---|
| namespaceURI | Namespace URI or null ("") if the element has no namespace URI. | 
| localName | Local name (without the prefix). | 
| qualifiedName | Qualified name (with the prefix). | 
| attributeCount | Number of attributes attached to the element. You can retrieve attributes by calling the get attribute methods (that is, the getAttribute, getAttributeValueByName, or getAttributeValueByNameNS method) from within the startElement method. | 
The parser invokes this method (if implemented) at the beginning of every element in the XML document.
There is a corresponding endElement event for every startElement event (even when the element is empty).
All of the content of an element is reported, in order, before the corresponding endElement event.
