@Override
public void startElement(String uri, String localName, String rawName,
Attributes atts) throws SAXException {
if (Thread.interrupted())
warning(null, ERR_INTERRUPTED, "Interrupt detected.");
FrameI oldFrame = frame;
frame = frame.startElement(uri, localName, rawName, atts);
if (DEBUG)
System.err.println("<" + rawName + "> :: "
+ getSimpleName(oldFrame.getClass()) + " --> "
+ getSimpleName(frame.getClass()));
}