[%
    BLOCK build_org_selector_options;
        disabled = '';
        selected = '';
        IF can_have_vols_only;
            IF walker.ou_type.can_have_vols != 't';
                disabled = 'disabled="disabled"';
            ELSIF walker.id == value;
                selected = 'selected="selected"';
            END;
        END;
%]
        <option value='[% walker.id %]' [% selected %] [% disabled %]>
            [%
                pad = walker.ou_type.depth * 2;
                FOR idx IN [0..pad]; '&nbsp;'; END;
                walker.name;
            %]
        </option>
        [%  FOR child IN walker.children;
            PROCESS build_org_selector_options walker=child value=value;
        END;
    END;

    # XXX TODO probably put this BLOCK somewhere else so it can be used widely.
    # Org Unit Selector Widget :
    #   PROCESS build_org_selector id='selector-id' name='selector-name'
    BLOCK build_org_selector;
%]
    <select [% IF id %] id='[% id %]' [% END %] name='[% name %]'>
    [% PROCESS build_org_selector_options walker=(org_unit || ctx.aou_tree) value=value %]
    </select>
[%  END %]