Bug 192789 Support to render reportlet using bookmark in frameset servlet.
Description: Support to render reportlet using bookmark in frameset servlet. At present, only run and preview servlet support __isreportlet&__bookmark to generate reportlet.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtChangeParameterActionHandler.java
UpdateContent content = new UpdateContent( );
		content.setContent( DataUtil.toUTF8( page.toByteArray( ) ) );
		content.setTarget( operation.getTarget( ).getId( ) );
		content.setInitializationId( parseReportId( activeIds ) );
		if ( useBookmark )
		{
			content.setBookmark( bookmark );
		}
		Update updateDocument = new Update( );
		updateDocument.setUpdateContent( content );
		
		UpdateData updateData = new UpdateData( );
		updateData.setTarget( "navigationBar" ); 
		Page pageObj = new Page( );
		pageObj.setPageNumber( String.valueOf( pageNumber ) );
		pageObj.setTotalPage( String.valueOf( getReportService( ).getPageCount(
				docName, options, new OutputOptions( ) ) ) );
		Data data = new Data( );
		data.setPage( pageObj );
		updateData.setData( data );
		Update updateNavbar = new Update( );
		updateNavbar.setUpdateData( updateData );
		response.setUpdate( new Update[]{updateDocument, updateNavbar} );
	}
	protected IViewerReportService getReportService( )
	{
		return BirtReportServiceFactory.getReportService( );
	}
}