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
String key = condition.getLiteral( )
				+ sa.getSource( ).getClass( ).getName( );
		if ( !callbackMethodsRegistry.containsKey( key ) )
		{
			addScriptCallBack( sa,
					sb,
					sa.getActionForCondition( condition ),
					getJSMethodName( condition, sa ) );
			callbackMethodsRegistry.put( key, Boolean.TRUE );
		}
	}
	
	private void addScriptCallBack( ShapedAction sa, StringBuffer sb,
			Action ac, String functionName )
	{
		if ( ac != null )
		{
			
			
			if ( ac.getType( ).getValue( ) == ActionType.INVOKE_SCRIPT )
			{
				sb.append( wrapJSMethod( functionName, generateJSContent( ac ) ) );
			}
		}
	}
	private String generateJSContent( Action ac )
	{
		if ( ac != null )