function setFields()
    {        
    var sel = $('field_mode').value;
    var duration = 0.5;
                      
    $$('tr.submit-formfield').each(function(item) {
        item.hide();
    });     
         
    switch(sel)
    {
    case '1': case '2':                                                      
        $('field_time').appear({ duration: duration });                     
        $('field_points').appear({ duration: duration });
        $('field_draw').appear({ duration: duration });
        $('field_one_picture').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;                                 
    case '3': case '4':                         
        $('field_time').appear({ duration: duration });                             
        $('field_draw').appear({ duration: duration }); 
        $('field_one_picture').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;    
    case '5':                         
        $('field_points').appear({ duration: duration });                             
        $('field_amount_text').appear({ duration: duration });
        $('field_more_pictures').appear({ duration: duration });
        $('field_video').appear({ duration: duration }); 
        $('field_submit').appear({ duration: duration });
        break;
    case '6': case '7': case '8':                          
        $('field_points_series').appear({ duration: duration });                             
        $('field_draw').appear({ duration: duration }); 
        $('field_more_pictures').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;
    case '9': case '10': case '11':                            
        $('field_points').appear({ duration: duration });        
        $('field_one_picture').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;
    case '12': case '13': case '14':                            
        $('field_points').appear({ duration: duration });        
        $('field_one_picture').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;
    case '15': case '16': case '17':                            
        $('field_points_series').appear({ duration: duration });                             
        $('field_more_pictures').appear({ duration: duration });
        $('field_video').appear({ duration: duration });
        $('field_submit').appear({ duration: duration });
        break;
    }
    
    return true;
    }