Open Flash Charts - nenačítá data

include_once '../ofc-library/open_flash_chart_object.php';
open_flash_chart_object( 420, 110, 'http://'. $_SERVER['SERVER_NAME'] .'/kalkulace_graf.php', false );    

<?
// generate some random data
        srand((double)microtime()*1000000);

        $data = array();
        for( $i=0; $i<5; $i++ )
        {
          $data[] = rand(5,15);
        }

        include_once( 'ofc-library/open-flash-chart.php' );
        $g = new graph();

        //
        // PIE chart, 60% alpha
        //
        $g->pie(60,'#505050','{font-size: 12px; color: #404040;');
        //
        // pass in two arrays, one of data, the other data labels
        //
        $g->pie_values( $data, array('IE','Firefox','Opera','Wii','Other') );
        //
        // Colours for each slice, in this case some of the colours
        // will be re-used (3 colurs for 5 slices means the last two
        // slices will have colours colour[0] and colour[1]):
        //
        $g->pie_slice_colours( array('#d01f3c','#356aa0','#C79810') );

        $g->set_tool_tip( '#val#%' );

        $g->title( 'Pie Chart', '{font-size:18px; color: #d01f3c}' );
        echo $g->render();
?>