How to rectify Extended Syntax check warning , when object REF TO is used..

hi all,
when running "Extended program check " for the below , I am getting warning error when I delcare the below stmts.
DATA: go_alv TYPE REF TO cl_salv_table.
        lo_selections   TYPE REF TO cl_salv_selections,
      lo_display_settings
                    TYPE REF TO cl_salv_display_settings,
    lo_events       TYPE REF TO cl_salv_events_table,
    lo_content_top TYPE REF TO cl_salv_form_element,
THE MESSAGE ARE
Field GO_ALV is not referenced statically in the program
(The message can be hidden with "#EC *)
Program: ZJTEST Row:     69
Field LO_EVENTS is not referenced statically in the program
(The message can be hidden with "#EC *)
Program: ZJTEST Row:     74
Field LO_DISPLAY_SETTINGS is not referenced statically in the program
(The message can be hidden with "#EC *)
Program: ZJTEST Row:     76
Field LO_SELECTIONS is not referenced statically in the program
(The message can be hidden with "#EC *)
is there any way I can avoid this warning message apart using #EC ??? is there any way to avoid this ??/
kindly help
thanks

In Program
a)
DATA: lo_top_element TYPE REF TO cl_salv_form_layout_grid,
         lo_grid      TYPE REF TO cl_salv_form_layout_grid,
         lo_header    TYPE REF TO cl_salv_form_header_info,
         lo_label     TYPE REF TO cl_salv_form_label,
         lo_text      TYPE REF TO cl_salv_form_text,
         lo_logo      TYPE REF TO cl_salv_form_layout_logo,
         lv_logo      TYPE bds_typeid,
         lv_title_h   TYPE sytitle.
TYPES: ty_logo(70) TYPE c.
CONSTANTS:
        lc_alv_logo                TYPE ty_logo VALUE 'CE_NEW_LOGO'.
CREATE OBJECT lo_top_element
      EXPORTING
        columns = 3.
lo_grid = lo_top_element->create_grid( row = 3
                                        column = 1 ).
CONCATENATE 'Header ' 'Information' INTO
                     lv_title_h SEPARATED BY space.
Row 1 header information is set
lo_header = lo_grid->create_header_information(
     row     = 1
     column = 1
     text    = lv_title_h
     tooltip = lv_title_h ).
lo_grid->add_row( ).
Row 2 Doc. date is set
lo_label = lo_grid->create_label(
    row     = 2
    column = 1
    text    = text-b02
    tooltip = text-b02 ).
lo_text = lo_grid->create_text(
    row     = 2
    column = 2
    text    = s_docket-low
    tooltip = s_docket-low ).
lo_text = lo_grid->create_text(
    row     = 2
    column = 3
    text    = s_docket-high
    tooltip = s_docket-high ).
lo_grid->add_row( ).
CREATE OBJECT lo_logo.
lo_logo->set_left_content( lo_grid ).
lv_logo = lc_alv_logo.
lo_logo->set_right_logo( lv_logo ).
pt_content_top = lo_logo.
Extended program check :
No read access to field LO_HEADER
(The message can be hidden with "#EC NEEDED)
No read access to field LO_LABEL
(The message can be hidden with "#EC NEEDED)
No read access to field LO_TEXT
(The message can be hidden with "#EC NEEDED)
Kindly giude

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Message was edited by: KDeepak
Message was edited by: KDeepak

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Message was edited by: jbussche
AH! I see that I forgot to say "please". )
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http://help.sap.com/saphelp_nw2004s/helpdata/en/d1/801af0454211d189710000e8322d00/frameset.htm

How to rectify Extended Syntax check warning , when object REF TO is used..

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