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<!-- $Id: dbhtml.dtd,v 1.1 2007/01/22 15:16:07 bjori Exp $

     DTD for the HTML produced by the DocBook Modular Stylesheets.
     Derived from W3C HTML 3.2.

     Common declaration:
   
     <!DOCTYPE html PUBLIC "-//Norman Walsh//DTD DocBook HTML 1.0//EN">

-->

<!ENTITY % HTML.Version
        "-//Norman Walsh//DTD DocBook HTML 1.0//EN"
        >

<!ENTITY % version.attr "VERSION CDATA #FIXED '%HTML.Version;'">

<!--================== Additions ==========================================-->

<!ENTITY % common.atts
	"CLASS		CDATA	#IMPLIED
	 STYLE		CDATA	#IMPLIED">

<!--================== Imported Names =====================================-->

<!ENTITY % Content-Type "CDATA"
        -- meaning a MIME content type, as per RFC1521
        -->

<!ENTITY % HTTP-Method "GET | POST"
        -- as per HTTP specification
        -->

<!ENTITY % URL "CDATA"
        -- The term URL means a CDATA attribute
           whose value is a Uniform Resource Locator,
           See RFC1808 (June 95) and RFC1738 (Dec 94).
        -->

<!-- Parameter Entities -->

<!ENTITY % head.misc "SCRIPT|STYLE|META|LINK" -- repeatable head elements -->

<!ENTITY % heading "H1|H2|H3|H4|H5|H6">

<!ENTITY % list "UL | OL">

<!ENTITY % preformatted "PRE">

<!--================ Character mnemonic entities ==========================-->

<!ENTITY % ISOlat1 PUBLIC
       "ISO 8879-1986//ENTITIES Added Latin 1//EN//HTML">
%ISOlat1;

<!--================ Entities for special symbols =========================-->
<!-- &trade &shy and &cbsp are not widely deployed and so not included here -->

<!ENTITY copy   CDATA "&#169"   -- copyright sign     -->
<!ENTITY reg    CDATA "&#174"   -- registered sign    -->
<!ENTITY amp    CDATA "&#38;"   -- ampersand          -->
<!ENTITY gt     CDATA "&#62;"   -- greater than       -->
<!ENTITY lt     CDATA "&#60;"   -- less than          -->
<!ENTITY quot   CDATA "&#34;"   -- double quote       -->
<!ENTITY nbsp   CDATA "&#160;"  -- non breaking space -->

<!ENTITY mdash  CDATA "&#150;"  -- em dash -->
<!ENTITY ndash  CDATA "&#151;"  -- en dash -->
<!ENTITY trade  CDATA "&#153;"  -- trademark -->

<!--=================== Text Markup =======================================-->

<!ENTITY % font "TT | I | B  | U | STRIKE | SUB | SUP">

<!ENTITY % phrase "EM | STRONG | DFN | CODE | SAMP | KBD | VAR | CITE | SPAN">

<!ENTITY % special "A | IMG | APPLET | FONT | BR | SCRIPT | MAP">

<!ENTITY % form "INPUT | SELECT | TEXTAREA">

<!ENTITY % text "#PCDATA | %font | %phrase | %special | %form">

<!ELEMENT (%font|%phrase) - - (%text)*>
<!ATTLIST (%font|%phrase)
    %common.atts;
    >

<!-- there are also 16 widely known color names although
  the resulting colors are implementation dependent:

   aqua, black, blue, fuchsia, gray, green, lime, maroon,
   navy, olive, purple, red, silver, teal, white, and yellow

 These colors were originally picked as being the standard
 16 colors supported with the Windows VGA palette.
 -->

<!ELEMENT FONT - - (%text)*     -- local change to font -->
<!ATTLIST FONT
    %common.atts;
    size    CDATA   #IMPLIED    -- [+]nn e.g. size="+1", size=4 --
    color   CDATA   #IMPLIED    -- #RRGGBB in hex, e.g. red: color="#FF0000" --
    >

<!ELEMENT BR    - O EMPTY    -- forced line break -->
<!ATTLIST BR
    %common.atts;
    clear (left|all|right|none) none -- control of text flow --
    >

<!--================== HTML content models ================================-->
<!--
    HTML has three basic content models:

        %text       character level elements and text strings
        %flow       block-like elements e.g. paragraphs and lists
        %bodytext   as (b) plus headers and ADDRESS
-->

<!ENTITY % block
     "P | %list | %preformatted | DL | DIV | 
      BLOCKQUOTE | FORM | HR | TABLE">

<!-- %flow is used for DD and LI -->

<!ENTITY % flow "(%text | %block)*">

<!--=================== Document Body =====================================-->

<!ENTITY % body.content "(%heading | %text | %block | ADDRESS)*">

<!ENTITY % color "CDATA" -- a color specification: #HHHHHH @@ details? -->

<!ENTITY % body-color-attrs "
        bgcolor %color #IMPLIED
        text %color #IMPLIED
        link %color #IMPLIED
        vlink %color #IMPLIED
        alink %color #IMPLIED
        ">

<!ELEMENT BODY O O  %body.content>
<!ATTLIST BODY
    %common.atts;
    background %URL #IMPLIED  -- texture tile for document background --
    %body-color-attrs;  -- bgcolor, text, link, vlink, alink --
    >

<!ENTITY % address.content "((%text;) | P)*">

<!ELEMENT ADDRESS - - %address.content>
<!ATTLIST ADDRESS
    %common.atts;
    >

<!ELEMENT DIV - - %body.content>
<!ATTLIST DIV
    %common.atts;
    align   (left|center|right) #IMPLIED -- alignment of following text --
    >

<!--================== The Anchor Element =================================-->

<!ELEMENT A - - (%text)* -(A)>
<!ATTLIST A
    %common.atts;
    name    CDATA   #IMPLIED    -- named link end --
    href    %URL    #IMPLIED    -- URL for linked resource --
    rel     CDATA   #IMPLIED    -- forward link types --
    rev     CDATA   #IMPLIED    -- reverse link types --
    title   CDATA   #IMPLIED    -- advisory title string --
    target  CDATA   #IMPLIED    -- target of HREF (frame) --
    >

<!--================== Client-side image maps ============================-->

<!-- These can be placed in the same document or grouped in a
     separate document although this isn't yet widely supported -->

<!ENTITY % SHAPE "(rect|circle|poly|default)">
<!ENTITY % COORDS "CDATA" -- comma separated list of numbers -->

<!ELEMENT MAP - - (AREA)*>
<!ATTLIST MAP
    %common.atts;
    name    CDATA   #IMPLIED
    >

<!ELEMENT AREA - O EMPTY>
<!ATTLIST AREA
    %common.atts;
    shape   %SHAPE  rect
    coords  %COORDS #IMPLIED  -- always needed except for shape=default --
    href    %URL    #IMPLIED  -- this region acts as hypertext link --
    nohref (nohref) #IMPLIED  -- this region has no action --
    alt     CDATA   #REQUIRED
    >

<!--================== The LINK Element ==================================-->

<!ENTITY % Types "CDATA"
        -- See Internet Draft: draft-ietf-html-relrev-00.txt
           LINK has been part of HTML since the early days
           although few browsers as yet take advantage of it.

           Relationship values can be used in principle:

                a) for document specific toolbars/menus when used
                   with the LINK element in document head:
                b) to link to a separate style sheet (rel=stylesheet)
                c) to make a link to a script (rel=script)
                d) by stylesheets to control how collections of
                   html nodes are rendered into printed documents
                e) to make a link to a printable version of this document
                   e.g. a postscript or pdf version (rel=print)
-->

<!ELEMENT LINK - O EMPTY>
<!ATTLIST LINK
    %common.atts;
    type    CDATA   #IMPLIED    -- What type of link is this? --
    href    %URL    #IMPLIED    -- URL for linked resource --
    rel     %Types  #IMPLIED    -- forward link types --
    rev     %Types  #IMPLIED    -- reverse link types --
    title   CDATA   #IMPLIED    -- advisory title string --
    >

<!--=================== Images ============================================-->

<!ENTITY % Length "CDATA" -- nn for pixels or nn% for percentage length -->
<!ENTITY % Pixels "CDATA" -- integer representing length in pixels -->

<!-- Suggested widths are used for negotiating image size
     with the module responsible for painting the image.
     align=left or right cause image to float to margin
     and for subsequent text to wrap around image -->

<!ENTITY % IAlign "(top|middle|bottom|left|right)">

<!ELEMENT IMG    - O EMPTY --  Embedded image -->
<!ATTLIST IMG
    %common.atts;
    src     %URL     #REQUIRED  -- URL of image to embed --
    alt     CDATA    #IMPLIED   -- for display in place of image --
    align   %IAlign  #IMPLIED   -- vertical or horizontal alignment --
    height  %Pixels  #IMPLIED   -- suggested height in pixels --
    width   %Pixels  #IMPLIED   -- suggested width in pixels --
    border  %Pixels  #IMPLIED   -- suggested link border width --
    hspace  %Pixels  #IMPLIED   -- suggested horizontal gutter --
    vspace  %Pixels  #IMPLIED   -- suggested vertical gutter --
    usemap  %URL     #IMPLIED   -- use client-side image map --
    ismap   (ismap)  #IMPLIED   -- use server image map --
    >

<!-- USEMAP points to a MAP element which may be in this document
  or an external document, although the latter is not widely supported -->

<!--=================== Java APPLET tag ===================================-->
<!--
  This tag is supported by all java enabled browsers. Applet resources
  (including their classes) are normally loaded relative to the document
  URL (or <BASE> element if it is defined). The CODEBASE attribute is used
  to change this default behavior. If the CODEBASE attribute is defined then
  it specifies a different location to find applet resources. The value
  can be an absolute URL or a relative URL. The absolute URL is used as is
  without modification and is not effected by the documents <BASE> element.
  When the codebase attribute is relative, then it is relative to the
  document URL (or <BASE> tag if defined).
-->
<!ELEMENT APPLET - - (%text)* +(PARAM)>
<!ATTLIST APPLET
    %common.atts;
    codebase %URL     #IMPLIED   -- code base --
    code     CDATA    #REQUIRED  -- class file --
    alt      CDATA    #IMPLIED   -- for display in place of applet --
    name     CDATA    #IMPLIED   -- applet name --
    width    %Pixels  #REQUIRED  -- suggested width in pixels --
    height   %Pixels  #REQUIRED  -- suggested height in pixels --
    align    %IAlign  #IMPLIED   -- vertical or horizontal alignment --
    hspace   %Pixels  #IMPLIED   -- suggested horizontal gutter --
    vspace   %Pixels  #IMPLIED   -- suggested vertical gutter --
    >

<!ELEMENT PARAM - O EMPTY>
<!ATTLIST PARAM
    %common.atts;
    name    NAME      #REQUIRED  -- The name of the parameter --
    value   CDATA     #IMPLIED   -- The value of the parameter --
    >

<!--
Here is an example:

    <applet codebase="applets/NervousText"
        code=NervousText.class
        width=300
        height=50>
    <param name=text value="Java is Cool!">
    <img src=sorry.gif alt="This looks better with Java support">
    </applet>
-->

<!--=================== Horizontal Rule ===================================-->

<!ELEMENT HR    - O EMPTY>
<!ATTLIST HR
    %common.atts;
    align (left|right|center) #IMPLIED
    noshade (noshade) #IMPLIED
    size  %Pixels #IMPLIED
    width %Length #IMPLIED
    >
<!--=================== Paragraphs=========================================-->

<!ELEMENT P     - O (%block|%text)*>
<!ATTLIST P
    %common.atts;
    align  (left|center|right) #IMPLIED
    >

<!--=================== Headings ==========================================-->

<!--
  There are six levels of headers from H1 (the most important)
  to H6 (the least important).
-->

<!ELEMENT ( %heading )  - -  (%text;)*>
<!ATTLIST ( %heading )
    %common.atts;
    align  (left|center|right) #IMPLIED
    >

<!--=================== Preformatted Text =================================-->

<!-- excludes images and changes in font size -->

<!ENTITY % pre.exclusion "IMG|SUB|SUP|FONT">

<!ELEMENT PRE - - (%text)* -(%pre.exclusion)>
<!ATTLIST PRE
    %common.atts;
    width NUMBER #implied -- is this widely supported? --
    >

<!--=================== Block-like Quotes =================================-->

<!ELEMENT BLOCKQUOTE - - %body.content>
<!ATTLIST BLOCKQUOTE
    %common.atts;
    >

<!--=================== Lists =============================================-->

<!--
    HTML 3.2 allows you to control the sequence number for ordered lists.
    You can set the sequence number with the START and VALUE attributes.
    The TYPE attribute may be used to specify the rendering of ordered
    and unordered lists.
-->

<!-- definition lists - DT for term, DD for its definition -->

<!ELEMENT DL    - -  (DT|DD)*>
<!ATTLIST DL
    %common.atts;
    compact (compact) #IMPLIED -- more compact style --
    >

<!ELEMENT DT - O  (%text)*>
<!ATTLIST DT
    %common.atts;
    >

<!ELEMENT DD O O  %flow;>
<!ATTLIST DD
    %common.atts;
    >

<!-- Ordered lists OL, and unordered lists UL -->
<!ELEMENT (OL|UL) - -  (LI)*>

<!--
       Numbering style
    1   arablic numbers     1, 2, 3, ...
    a   lower alpha         a, b, c, ...
    A   upper alpha         A, B, C, ...
    i   lower roman         i, ii, iii, ...
    I   upper roman         I, II, III, ...

    The style is applied to the sequence number which by default
    is reset to 1 for the first list item in an ordered list.

    This can't be expressed directly in SGML due to case folding.
-->

<!ENTITY % OLStyle "CDATA" -- constrained to: [1|a|A|i|I] -->

<!ATTLIST OL -- ordered lists --
    %common.atts;
    type      %OLStyle   #IMPLIED   -- numbering style --
    start     NUMBER     #IMPLIED   -- starting sequence number --
    compact  (compact)   #IMPLIED   -- reduced interitem spacing --
    >

<!-- bullet styles -->

<!ENTITY % ULStyle "disc|square|circle">

<!ATTLIST UL -- unordered lists --
    %common.atts;
    type    (%ULStyle)   #IMPLIED   -- bullet style --
    compact (compact)    #IMPLIED   -- reduced interitem spacing --
    >

<!-- The type attribute can be used to change the bullet style
     in unordered lists and the numbering style in ordered lists -->

<!ENTITY % LIStyle "CDATA" -- constrained to: "(%ULStyle|%OLStyle)" -->

<!ELEMENT LI - O %flow -- list item -->
<!ATTLIST LI
    %common.atts;
    type    %LIStyle     #IMPLIED   -- list item style --
    value    NUMBER      #IMPLIED   -- reset sequence number --
    >

<!--================ Forms ===============================================-->

<!ELEMENT FORM - - %body.content -(FORM)>
<!ATTLIST FORM
    %common.atts;
    action %URL #IMPLIED  -- server-side form handler --
    method (%HTTP-Method) GET -- see HTTP specification --
    enctype %Content-Type; "application/x-www-form-urlencoded"
    >

<!ENTITY % InputType
        "(TEXT | PASSWORD | CHECKBOX | RADIO | SUBMIT
            | RESET | FILE | HIDDEN | IMAGE)">

<!ELEMENT INPUT - O EMPTY>
<!ATTLIST INPUT
    %common.atts;
    type %InputType TEXT     -- what kind of widget is needed --
    name  CDATA #IMPLIED     -- required for all but submit and reset --
    value CDATA #IMPLIED     -- required for radio and checkboxes --
    checked (checked) #IMPLIED -- for radio buttons and check boxes --
    size CDATA  #IMPLIED     -- specific to each type of field --
    maxlength NUMBER #IMPLIED
    src   %URL  #IMPLIED     -- for fields with background images --
    align  (top|middle|bottom|left|right) top -- image alignment --
    >

<!ELEMENT SELECT - - (OPTION+)>
<!ATTLIST SELECT
    %common.atts;
    name CDATA #REQUIRED
    size NUMBER #IMPLIED
    multiple (multiple) #IMPLIED
    >

<!ELEMENT OPTION - O (#PCDATA)*>
<!ATTLIST OPTION
    %common.atts;
    selected (selected) #IMPLIED
    value  CDATA  #IMPLIED -- defaults to element content --
    >

<!-- Multi-line text input field. -->

<!ELEMENT TEXTAREA - - (#PCDATA)*>
<!ATTLIST TEXTAREA
    %common.atts;
    name CDATA #REQUIRED
    rows NUMBER #REQUIRED
    cols NUMBER #REQUIRED
    >

<!--======================= Tables ========================================-->

<!-- Widely deployed subset of the full table standard, see RFC 1942
     e.g. at http://www.ics.uci.edu/pub/ietf/html/rfc1942.txt -->

<!-- horizontal placement of table relative to window -->
<!ENTITY % Where "(left|center|right)">

<!-- horizontal alignment attributes for cell contents -->
<!ENTITY % cell.halign
        "align  (left|center|right) #IMPLIED"
        >

<!-- vertical alignment attributes for cell contents -->
<!ENTITY % cell.valign
        "valign  (top|middle|bottom|baseline)  #IMPLIED"
        >

<!ELEMENT table - - (caption?, tr+)>
<!ATTLIST table                       -- table element --
    %common.atts;
    align     %Where;   #IMPLIED  -- table position relative to window --
    width     %Length   #IMPLIED  -- table width relative to window --
    border    %Pixels   #IMPLIED  -- controls frame width around table --
    dummy     (border)  #IMPLIED  -- fixes SGML error for border w/o value --
    cellspacing %Pixels #IMPLIED  -- spacing between cells --
    cellpadding %Pixels #IMPLIED  -- spacing within cells --
    >

<!ELEMENT tr - O (th|td)*>
<!ATTLIST tr                       -- table row --
    %common.atts;
    %cell.halign;              -- horizontal alignment in cells --
    %cell.valign;              -- vertical alignment in cells --
    >

<!ELEMENT (th|td) - O %body.content>
<!ATTLIST (th|td)                  -- header or data cell --
    %common.atts;
    nowrap (nowrap)  #IMPLIED  -- suppress word wrap --
    rowspan NUMBER   1         -- number of rows spanned by cell --
    colspan NUMBER   1         -- number of cols spanned by cell --
    %cell.halign;              -- horizontal alignment in cell --
    %cell.valign;              -- vertical alignment in cell --
    width   %Pixels  #IMPLIED  -- suggested width for cell --
    height  %Pixels  #IMPLIED  -- suggested height for cell --
    >

<!ELEMENT CAPTION - - (%text;)* -- table or figure caption -->
<!ATTLIST CAPTION
    %common.atts;
    align (top|bottom) #IMPLIED
    >

<!--================ Document Head ========================================-->

<!-- %head.misc defined earlier on as "SCRIPT|STYLE|META|LINK" -->

<!ENTITY % head.content "TITLE & BASE?">

<!ELEMENT HEAD O O  (%head.content) +(%head.misc)>
<!ATTLIST HEAD
    %common.atts;
    >

<!ELEMENT TITLE - -  (#PCDATA)* -(%head.misc)
          -- The TITLE element is not considered part of the flow of text.
             It should be displayed, for example as the page header or
             window title.
          -->
<!ATTLIST TITLE
    %common.atts;
    >

<!--
    The BASE element gives an absolute URL for dereferencing relative
    URLs, e.g.

         <BASE href="http://foo.com/index.html">
         ...
         <IMG SRC="images/bar.gif">

    The image is deferenced to

         http://foo.com/images/bar.gif

   In the absence of a BASE element the document URL should be used.
   Note that this is not necessarily the same as the URL used to
   request the document, as the base URL may be overridden by an HTTP
   header accompanying the document.
-->

<!ELEMENT BASE - O EMPTY>
<!ATTLIST BASE
    %common.atts;
    href %URL  #REQUIRED
    >

<!ELEMENT META - O EMPTY -- Generic Metainformation -->
<!ATTLIST META
    %common.atts;
    http-equiv  NAME    #IMPLIED  -- HTTP response header name  --
    name        NAME    #IMPLIED  -- metainformation name       --
    content     CDATA   #REQUIRED -- associated information     --
    >

<!-- SCRIPT/STYLE are place holders for transition to next version of HTML -->

<!ELEMENT STYLE  - - (#PCDATA)*  -(%head.misc) -- style info -->
<!ATTLIST STYLE
    %common.atts;
    >

<!ELEMENT SCRIPT - - (#PCDATA)*  -(%head.misc) -- script statements -->
<!ATTLIST SCRIPT
    %common.atts;
    >

<!--================ Document Structure ===================================-->

<!ELEMENT HTML O O  (HEAD, BODY)>
<!ATTLIST HTML
    %common.atts;
    %version.attr;
    >