Bug 212246 Browsers keep poping up when click the series with interactivity Focus-Hyperlink [13]
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
ShapedAction sa = (ShapedAction) iter.next( );
			userCallback( sa, sb );
			String coords = shape2polyCoords( sa.getShape( ) );
			if ( coords != null )
			{
				HTMLTag tag = new HTMLTag( "AREA" ); 
				tag.addAttribute( HTMLAttribute.SHAPE, POLY_SHAPE );
				tag.addAttribute( HTMLAttribute.COORDS, coords );
				boolean changed = false;
				changed |= processOnFocus( sa, tag );
				changed |= processOnBlur( sa, tag );
				changed |= processOnClick( sa, tag );
				changed |= processOnDoubleClick( sa, tag );
				changed |= processOnMouseOver( sa, tag );
				if ( changed )
				{
					sb.append( tag );
				}
			}
		}
		return sb.toString( );
	}
	
	private boolean processCommonEvent( ShapedAction sa, HTMLTag tag,
			TriggerCondition condition, HTMLAttribute htmlAttr )
	{
		Action ac = sa.getActionForCondition( condition );
		if ( checkSupportedAction( ac ) )
		{
			switch ( ac.getType( ).getValue( ) )