context.getResponse( ).setHeader("Pragma","No-cache"); context.getResponse( ).setHeader("Cache-Control","no-cache"); context.getResponse( ).setHeader("Cache-Control","no-store"); context.getResponse( ).setDateHeader("Expires", 0);
	protected void __doGet( IContext context ) throws ServletException,			IOException, BirtException	{		IFragment activeFragment = null;		String servletPath = context.getRequest( ).getServletPath( );		if ( IBirtConstants.SERVLET_PATH_FRAMESET				.equalsIgnoreCase( servletPath ) )		{			activeFragment = viewer;		}		activeFragment.service( context.getRequest( ), context.getResponse( ) );	}