Element popElement = (Element) parentStack.pop( );
Element popElement = null; if ( !parentStack.isEmpty( ) ) popElement = (Element) parentStack.pop( );
	public Element popParent( )	{		Element popElement = (Element) parentStack.pop( );		if ( !parentStack.isEmpty( ) )			currentParent = (Element) parentStack.peek( );		return popElement;	}