<!--
        This is an EXPERIMENTAL version of HTML 4.0 that
        extends HTML 3.2 to add support for proposals under review by
        the W3C HTML Working Group, including style sheets, scripting,
        the object tag, internationalization and some extensions to
        forms for improved accessibility by people with disabilities.
        The frame tags have been added in acknowledgement of their
        widespread deployment.

            Draft: $Date: 2002-03-13 20:37:05 $

            Authors:
                Dave Raggett <dsr@w3.org>
                Arnaud Le Hors <lehors@w3.org>

        This is work in progress, subject to change at any time.
        It does not imply endorsement by, or the consensus of,
        either W3C or members of the HTML working group. Further
        information about HTML 4.0 is available at:

            http://www.w3.org/TR/WD-html40-970708/.
-->
<!--   *** PATCHED *** line 807, 818  (due to a bug in the DTD parser)  vm 970716 -->
<!ENTITY % HTML.Version "http://www.w3.org/TR/WD-html40-970708/HTML4.dtd"
  -- Typical usage:

    <!DOCTYPE HTML SYSTEM "http://www.w3.org/TR/WD-html40-970708/HTML4.dtd">
    <html>
    ...
    </html>
  --
>

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

<!ENTITY % ContentType "CDATA"
    -- an Internet media type, as per [RFC2045]
    -->

<!ENTITY % URL "CDATA"
    -- a Uniform Resource Locator,
       see [RFC1808] and [RFC1738]
    -->

<!ENTITY % Script "CDATA" -- scriptlet -->

<!-- Parameter Entities -->

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

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

<!ENTITY % list "UL | OL |  DIR | MENU">

<!ENTITY % preformatted "PRE">

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

<!ENTITY % HTMLlat1 PUBLIC
   "-//W3C//ENTITIES Latin1//EN//HTML">
%HTMLlat1;

<!ENTITY % HTMLsymbol PUBLIC
   "-//W3C//ENTITIES Symbols//EN//HTML">
%HTMLsymbol;

<!ENTITY % HTMLspecial PUBLIC
   "-//W3C//ENTITIES Special//EN//HTML">
%HTMLspecial;

<!--=================== Generic Attributes ===============================-->

<!ENTITY % coreattrs
 "id          ID         #IMPLIED  -- document-wide unique id --
  class       CDATA      #IMPLIED  -- space separated list of classes --
  style       CDATA      #IMPLIED  -- associated style info --
  title       CDATA      #IMPLIED  -- advisory title/amplification --"
  >

<!ENTITY % i18n
 "lang        NAME       #IMPLIED  -- [RFC1766] language value --
  dir         (ltr|rtl)  #IMPLIED  -- direction for weak/neutral text --"
  >

<!ENTITY % events
 "onclick     %Script    #IMPLIED  -- the pointing device button was clicked --
  ondblclick  %Script    #IMPLIED  -- the pointing device button was double clicked --
  onmousedown %Script    #IMPLIED  -- the pointing device button was pressed down --
  onmouseup   %Script    #IMPLIED  -- the pointing device button was released --
  onmouseover %Script    #IMPLIED  -- the pointing device was moved over --
  onmousemove %Script    #IMPLIED  -- the pointing device was moved --
  onmouseout  %Script    #IMPLIED  -- the pointing device was moved away --
  onkeypress  %Script    #IMPLIED  -- a key was pressed and released --
  onkeydown   %Script    #IMPLIED  -- a key was pressed down --
  onkeyup     %Script    #IMPLIED  -- a key was released --"
  >


<!ENTITY % attrs "%coreattrs %i18n %events">

<!ENTITY % align "align (left|center|right|justify)  #IMPLIED"
                   -- default is left for ltr paragraphs, right for rtl --
  >

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

<!ENTITY % font
 "TT | I | B | U | S | STRIKE | BIG | SMALL">

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

<!ENTITY % special
   "A | IMG | APPLET | OBJECT | FONT | BASEFONT | BR | SCRIPT |
    MAP | Q | SUB | SUP | SPAN | BDO | IFRAME">

<!ENTITY % formctrl "INPUT | SELECT | TEXTAREA | LABEL | BUTTON">

<!-- %inline covers inline or "text-level" elements -->
<!ENTITY % inline "#PCDATA | %font | %phrase | %special | %formctrl">

<!ELEMENT (%font|%phrase) - - (%inline)*>
<!ATTLIST (%font|%phrase)
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

<!-- subscripts and superscripts -->
<!ELEMENT (SUB|SUP) - - (%inline)*>
<!ATTLIST (SUB|SUP)
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

<!ELEMENT SPAN - - (%inline)*     -- generic language/style container -->
<!ATTLIST SPAN
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

<!-- INS/DEL are handled by inclusion on BODY -->
<!ELEMENT (INS|DEL) - - (%inline)* -- inserted/deleted text -->
<!ATTLIST (INS|DEL)
  %attrs                           -- %coreattrs, %i18n, %events --
  cite        %URL      #IMPLIED   -- info on reason for change --
  datetime    CDATA     #IMPLIED   -- when changed: ISO date format --
  >

<!ELEMENT BDO - - (%inline)*      -- I18N BiDi over-ride -->
<!ATTLIST BDO
  lang        NAME       #IMPLIED  -- [RFC1766] language value --
  dir         (ltr|rtl)  #REQUIRED -- directionality --
  >

<!ELEMENT BASEFONT - O EMPTY>
<!ATTLIST BASEFONT
  size        CDATA      #REQUIRED -- base font size for FONT elements --
  color       CDATA      #IMPLIED  -- #RRGGBB in hex, e.g. red: "#FF0000" --
  face        CDATA      #IMPLIED  -- comma separated list of font names --
  >

<!ELEMENT FONT - - (%inline)*   -- local change to font -->
<!ATTLIST FONT
  size        CDATA      #IMPLIED  -- [+]nn e.g. size="+1", size=4 --
  color       CDATA      #IMPLIED  -- #RRGGBB in hex, e.g. red: "#FF0000" --
  face        CDATA      #IMPLIED  -- comma separated list of font names --
  >

<!ELEMENT BR - O EMPTY          -- forced line break -->
<!ATTLIST BR
  %coreattrs;                      -- id, class, style, title --
  clear (left|all|right|none) none -- control of text flow --
  >

<!--================== HTML content models ===============================-->

<!--
    HTML has two basic content models:

        %inline     character level elements and text strings
        %block      block-like elements e.g. paragraphs and lists
-->

<!ENTITY % blocklevel
     "P | %heading | %list | %preformatted | DL | DIV | CENTER |
      NOSCRIPT | NOFRAMES | BLOCKQUOTE | FORM | ISINDEX | HR |
      TABLE | FIELDSET | ADDRESS">

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

<!ENTITY % block "(%blocklevel | %inline)*">

<!ENTITY % Color "CDATA" -- a color using sRGB: #RRGGBB as Hex values -->

<!-- There are also 16 widely known color names with their sRGB values:

    Black  = #000000    Green  = #008000
    Silver = #C0C0C0    Lime   = #00FF00
    Gray   = #808080    Olive  = #808000
    White  = #FFFFFF    Yellow = #FFFF00
    Maroon = #800000    Navy   = #000080
    Red    = #FF0000    Blue   = #0000FF
    Purple = #800080    Teal   = #008080
    Fuchsia= #FF00FF    Aqua   = #00FFFF
 -->

<!ENTITY % bodycolors "
  bgcolor %Color #IMPLIED
  text  %Color   #IMPLIED
  link  %Color   #IMPLIED
  vlink %Color   #IMPLIED
  alink %Color   #IMPLIED
  ">

<!ELEMENT BODY O O  (%block) -(BODY) +(INS|DEL)>
<!ATTLIST BODY
  %attrs;                          -- %coreattrs, %i18n, %events --
  background  %URL       #IMPLIED  -- texture tile for document background --
  %bodycolors;                     -- bgcolor, text, link, vlink, alink --
  onload      %Script    #IMPLIED  -- the document has been loaded --
  onunload    %Script    #IMPLIED  -- the document has been removed --
  >

<!ELEMENT ADDRESS - - ((%inline;) | P)*>
<!ATTLIST ADDRESS
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

<!ELEMENT DIV - - %block>
<!ATTLIST DIV
  %attrs;                          -- %coreattrs, %i18n, %events --
  %align;                          -- align, text alignment --
  >

<!-- CENTER is a shorthand for DIV with ALIGN=CENTER -->
<!ELEMENT CENTER - - %block>
<!ATTLIST CENTER
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

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

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

<!ELEMENT A - - (%inline)* -(A)>
<!ATTLIST A
  %attrs;                          -- %coreattrs, %i18n, %events --
  charset     CDATA      #IMPLIED  -- char encoding of linked resource --
  name        CDATA      #IMPLIED  -- named link end --
  href        %URL       #IMPLIED  -- URL for linked resource --
  target      CDATA      #IMPLIED  -- where to render resource --
  rel         CDATA      #IMPLIED  -- forward link types --
  rev         CDATA      #IMPLIED  -- reverse link types --
  accesskey   CDATA      #IMPLIED  -- accessibility key character --
  shape       %Shape     rect      -- for use with OBJECT SHAPES --
  coords      %Coords    #IMPLIED  -- for use with OBJECT SHAPES --
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  >

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

<!ELEMENT MAP - - (AREA)*>
<!ATTLIST MAP
  %coreattrs;                      -- id, class, style, title --
  name        CDATA     #IMPLIED
  >

<!ELEMENT AREA - O EMPTY>
<!ATTLIST AREA
  shape       %Shape    rect      -- controls interpretation of coords --
  coords      %Coords   #IMPLIED  -- comma separated list of values --
  href        %URL      #IMPLIED  -- this region acts as hypertext link --
  target      CDATA     #IMPLIED  -- where to render linked resource -- 
  nohref      (nohref)  #IMPLIED  -- this region has no action --
  alt         CDATA     #REQUIRED -- description for text only browsers --
  tabindex    NUMBER    #IMPLIED  -- position in tabbing order --
  >

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

<!--
  Relationship values can be used in principle:

   a) for document specific toolbars/menus when used
      with the LINK element in document head e.g.
        start, contents, previous, next, index, end, help
   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
  %attrs;                          -- %coreattrs, %i18n, %events --
  href        %URL       #IMPLIED  -- URL for linked resource --
  rel         CDATA      #IMPLIED  -- forward link types --
  rev         CDATA      #IMPLIED  -- reverse link types --
  type    %ContentType  #IMPLIED  -- advisory Internet content type --
  media       CDATA      #IMPLIED  -- for rendering on these media --
  target      CDATA      #IMPLIED  -- where to render linked resource --
  >

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

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

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

<!-- To avoid problems with text-only UAs you need to provide
     a description with ALT, and avoid server-side image maps -->
<!ELEMENT IMG - O EMPTY      --  Embedded image -->
<!ATTLIST IMG
  %attrs;                          -- %coreattrs, %i18n, %events --
  src         %URL       #REQUIRED -- URL of image to embed --
  alt         CDATA      #IMPLIED  -- description for text only browsers --
  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-side 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 -->

<!--==================== OBJECT tag ======================================-->
<!-- PARAM elements should precede other content. SGML mixed content model
  technicality precludes specifying this formally ...
-->

<!ENTITY % OAlign "(texttop|middle|textmiddle|baseline|
                             textbottom|left|center|right)">

<!ELEMENT OBJECT - - (PARAM | %block)*>
<!ATTLIST OBJECT
  %attrs                           -- %coreattrs, %i18n, %events --
  declare     (declare)  #IMPLIED  -- declare but don't instantiate flag --
  classid     %URL       #IMPLIED  -- identifies an implementation --
  codebase    %URL       #IMPLIED  -- some systems need an additional URL --
  data        %URL       #IMPLIED  -- reference to object's data --
  type     %ContentType #IMPLIED  -- Internet content type for data --
  codetype %ContentType #IMPLIED  -- Internet content type for code --
  standby     CDATA      #IMPLIED  -- message to show while loading --
  align       %OAlign    #IMPLIED  -- positioning inside document --
  height      %Length    #IMPLIED  -- suggested height --
  width       %Length    #IMPLIED  -- suggested width --
  border      %Length    #IMPLIED  -- suggested link border width --
  hspace      %Length    #IMPLIED  -- suggested horizontal gutter --
  vspace      %Length    #IMPLIED  -- suggested vertical gutter --
  usemap      %URL       #IMPLIED  -- reference to image map --
  shapes      (shapes)   #IMPLIED  -- object has shaped hypertext links --
  name        %URL       #IMPLIED  -- submit as part of form --
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  >

<!ELEMENT PARAM - O EMPTY       -- named property value -->
<!ATTLIST PARAM
  name        CDATA      #REQUIRED -- property name --
  value       CDATA      #IMPLIED  -- property value --
  valuetype (DATA|REF|OBJECT) DATA -- How to interpret value --
  type        CDATA      #IMPLIED  -- Internet media type --
  >

<!--=================== Java APPLET tag ==================================-->
<!--
  One of code or object attributes must be present.
  Place PARAM elements before other content.
-->
<!ELEMENT APPLET - - (PARAM | %inline)*>
<!ATTLIST APPLET
  codebase    %URL       #IMPLIED   -- optional base URL for applet --
  archive     CDATA      #IMPLIED   -- comma separated archive list --
  code        CDATA      #IMPLIED   -- applet class file --
  object      CDATA      #IMPLIED   -- serialized applet file --
  alt         CDATA      #IMPLIED   -- description for text only browsers --
  name        CDATA      #IMPLIED   -- allows applets to find each other --
  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 --
  >

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

<!ELEMENT HR - O EMPTY>
<!ATTLIST HR
  %coreattrs;                      -- id, class, style, title --
  %events;
  align (left|right|center) #IMPLIED
  noshade     (noshade)  #IMPLIED
  size        %Pixels    #IMPLIED
  width       %Length    #IMPLIED
  >

<!--=================== Paragraphs =======================================-->

<!ELEMENT P - O (%inline)*>
<!ATTLIST P
  %attrs;                          -- %coreattrs, %i18n, %events --
  %align;                          -- align, text alignment --
  >

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

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

<!ELEMENT (%heading)  - -  (%inline;)*>
<!ATTLIST (%heading)
  %attrs;                          -- %coreattrs, %i18n, %events --
  %align;                          -- align, text alignment --
  >

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

<!-- excludes markup for images and changes in font size -->
<!ENTITY % pre.exclusion "IMG|BIG|SMALL|SUB|SUP|FONT">

<!ELEMENT PRE - - (%inline)* -(%pre.exclusion)>
<!ATTLIST PRE
  %attrs;                          -- %coreattrs, %i18n, %events --
  width       NUMBER     #IMPLIED
  >

<!--===================== Inline Quotes ==================================-->

<!ELEMENT Q - - (%inline)*>
<!ATTLIST Q
  %attrs;                          -- %coreattrs, %i18n, %events --
  cite        %URL       #IMPLIED  -- URL for source document or msg --
  >

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

<!ELEMENT BLOCKQUOTE - - %block>
<!ATTLIST BLOCKQUOTE
  %attrs;                          -- %coreattrs, %i18n, %events --
  cite        %URL       #IMPLIED  -- URL for source document or msg --
  >

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

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

<!ELEMENT DL - -  (DT|DD)+>
<!ATTLIST DL
  %attrs;                          -- %coreattrs, %i18n, %events --
  compact     (compact)  #IMPLIED  -- reduced interitem spacing --
  >

<!ELEMENT DT - O  (%inline)*>
<!ELEMENT DD - O  %block>
<!ATTLIST (DT|DD)
  %attrs                          -- %coreattrs, %i18n, %events --
  >

<!-- Ordered lists (OL) 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] -->

<!ELEMENT OL - -  (LI)+>
<!ATTLIST OL -- ordered lists --
  %attrs;                          -- %coreattrs, %i18n, %events --
  type        %OLStyle   #IMPLIED  -- numbering style --
  compact     (compact)  #IMPLIED  -- reduced interitem spacing --
  start       NUMBER     #IMPLIED  -- starting sequence number --
  >

<!-- Unordered Lists (UL) bullet styles -->
<!ENTITY % ULStyle "disc|square|circle">

<!ELEMENT UL - -  (LI)+>
<!ATTLIST UL                    -- unordered lists --
  %attrs;                          -- %coreattrs, %i18n, %events --
  type        (%ULStyle) #IMPLIED  -- bullet style --
  compact     (compact)  #IMPLIED  -- reduced interitem spacing --
  >

<!ELEMENT (DIR|MENU) - -  (LI)+ -(%blocklevel)>
<!ATTLIST DIR
  %attrs;                          -- %coreattrs, %i18n, %events --
  compact     (compact)  #IMPLIED
  >
<!ATTLIST MENU
  %attrs;                          -- %coreattrs, %i18n, %events --
  compact     (compact)  #IMPLIED
  >

<!-- <DIR>              Directory list                  -->
<!-- <DIR COMPACT>      Compact list style              -->
<!-- <MENU>             Menu list                       -->
<!-- <MENU COMPACT>     Compact list style              -->

<!-- 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 %block -- list item -->
<!ATTLIST LI
  %attrs;                          -- %coreattrs, %i18n, %events --
  type        %LIStyle   #IMPLIED  -- list item style --
  value       NUMBER     #IMPLIED  -- reset sequence number --
  >

<!--================ Forms ===============================================-->
<!ELEMENT FORM - - %block -(FORM)>
<!ATTLIST FORM
  %attrs;                          -- %coreattrs, %i18n, %events --
  action      %URL       #REQUIRED -- server-side form handler --
  method      (GET|POST) GET       -- HTTP method used to submit the form --
  enctype     %ContentType; "application/x-www-form-urlencoded"
  onsubmit    %Script    #IMPLIED  -- the form was submitted --
  onreset     %Script    #IMPLIED  -- the form was reset --
  target      CDATA      #IMPLIED  -- where to render result --
  accept-charset CDATA   #IMPLIED  -- list of supported charsets --
  >

<!-- Each label must not contain more than ONE field -->
<!ELEMENT LABEL - - (%inline)* -(LABEL) -- field label text -->
<!ATTLIST LABEL
  %attrs;                          -- %coreattrs, %i18n, %events --
  for         IDREF      #IMPLIED  -- matches field ID value --
  disabled    (disabled) #IMPLIED  -- control is unavailable in this context --
  accesskey   CDATA      #IMPLIED  -- accessibility key character --
  onfocus     %Script    #IMPLIED  -- the element got the focus --
  onblur      %Script    #IMPLIED  -- the element lost the focus --
  >

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

<!-- HSPACE and VSPACE missing due to lack of widespread support -->
<!ELEMENT INPUT - O EMPTY>
<!ATTLIST INPUT
  %attrs;                          -- %coreattrs, %i18n, %events --
  type      %InputType   TEXT      -- what kind of widget is needed --
  name        CDATA      #IMPLIED  -- required for all but submit & reset --
  value       CDATA      #IMPLIED  -- required for radio and checkboxes --
  checked   (checked)    #IMPLIED  -- for radio buttons and check boxes --
  disabled  (disabled)   #IMPLIED  -- control is unavailable in this context --
  readonly  (readonly)   #IMPLIED  -- for text and passwd --
  size        CDATA      #IMPLIED  -- specific to each type of field --
  maxlength   NUMBER     #IMPLIED  -- max chars for text fields --
  src         %URL       #IMPLIED  -- for fields with images --
  alt         CDATA      #IMPLIED  -- description for text only browsers --
  usemap      %URL       #IMPLIED  -- use client-side image map --
  align       %IAlign    #IMPLIED  -- vertical or horizontal alignment --
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  onfocus     %Script    #IMPLIED  -- the element got the focus --
  onblur      %Script    #IMPLIED  -- the element lost the focus --
  onselect    %Script    #IMPLIED  -- some text was selected --
  onchange    %Script    #IMPLIED  -- the element value was changed --
  accept      CDATA      #IMPLIED  -- list of MIME types for file upload --
  >

<!ELEMENT SELECT - - (OPTION+)>
<!ATTLIST SELECT
  %attrs;                          -- %coreattrs, %i18n, %events --
  name        CDATA      #REQUIRED -- field name --
  size        NUMBER     #IMPLIED  -- rows visible --
  multiple  (multiple)   #IMPLIED  -- default is single selection --
  disabled  (disabled)   #IMPLIED  -- control is unavailable in this context --
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  onfocus     %Script    #IMPLIED  -- the element got the focus --
  onblur      %Script    #IMPLIED  -- the element lost the focus --
  onselect    %Script    #IMPLIED  -- some text was selected --
  onchange    %Script    #IMPLIED  -- the element value was changed --
  >

<!ELEMENT OPTION - O (#PCDATA)*>
<!ATTLIST OPTION
  %attrs;                          -- %coreattrs, %i18n, %events --
  selected  (selected)   #IMPLIED
  disabled  (disabled)   #IMPLIED  -- control is unavailable in this context --
  value       CDATA      #IMPLIED  -- defaults to element content --
  >

<!-- Multi-line text input field. -->
<!ELEMENT TEXTAREA - - (#PCDATA)*>
<!ATTLIST TEXTAREA
  %attrs;                          -- %coreattrs, %i18n, %events --
  name        CDATA      #REQUIRED
  rows        NUMBER     #REQUIRED
  cols        NUMBER     #REQUIRED
  disabled  (disabled)   #IMPLIED  -- control is unavailable in this context --
  readonly  (readonly)   #IMPLIED
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  onfocus     %Script    #IMPLIED  -- the element got the focus --
  onblur      %Script    #IMPLIED  -- the element lost the focus --
  onselect    %Script    #IMPLIED  -- some text was selected --
  onchange    %Script    #IMPLIED  -- the element value was changed --
  >

<!--
  #PCDATA is to solve the mixed content problem,
  per specification only whitespace is allowed there!
 -->
<!ELEMENT FIELDSET - - (#PCDATA,LEGEND,%block)>
<!ATTLIST FIELDSET
  %attrs;                          -- %coreattrs, %i18n, %events --
  >

<!ELEMENT LEGEND - - (%inline;)+>
<!ENTITY % LAlign "(top|bottom|left|right)">

<!ATTLIST LEGEND            -- fieldset legend --
  %attrs;                          -- %coreattrs, %i18n, %events --
  align       %LAlign;   #IMPLIED  -- relative to fieldset --
  accesskey   CDATA      #IMPLIED  -- accessibility key character --
  >

<!ELEMENT BUTTON - -
     (%inline | %blocklevel)* -(A | %formctrl | FORM | ISINDEX | FIELDSET)>
<!ATTLIST BUTTON
  %attrs;                          -- %coreattrs, %i18n, %events --
  name        CDATA      #IMPLIED  -- for scripting/forms as submit button --
  value       CDATA      #IMPLIED  -- gets passed to server when submitted --
  type    (submit|reset) #IMPLIED  -- for use as form submit/reset button --
  disabled   (disabled)  #IMPLIED  -- control is unavailable in this context --
  tabindex    NUMBER     #IMPLIED  -- position in tabbing order --
  onfocus     %Script    #IMPLIED  -- the element got the focus --
  onblur      %Script    #IMPLIED  -- the element lost the focus --
  >

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

<!-- IETF HTML table standard, see [RFC1942] -->

<!--
 The BORDER attribute sets the thickness of the frame around the
 table. The default units are screen pixels.

 The FRAME attribute specifies which parts of the frame around
 the table should be rendered. The values are not the same as
 CALS to avoid a name clash with the VALIGN attribute.

 The value "border" is included for backwards compatibility with
 <TABLE BORDER> which yields frame=border and border=implied
 For <TABLE BORDER=1> you get border=1 and frame=implied. In this
 case, it is appropriate to treat this as frame=border for backwards
 compatibility with deployed browsers.
-->
<!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)">

<!--
 The RULES attribute defines which rules to draw between cells:

 If RULES is absent then assume:
     "none" if BORDER is absent or BORDER=0 otherwise "all"
-->

<!ENTITY % TRules "(none | groups | rows | cols | all)">
  
<!-- horizontal placement of table relative to document -->
<!ENTITY % TAlign "(left|center|right)">

<!-- horizontal alignment attributes for cell contents -->
<!ENTITY % cellhalign
  "align (left|center|right|justify|char) #IMPLIED
   char       CDATA      #IMPLIED  -- alignment char, e.g. char=':' --
   charoff    CDATA      #IMPLIED  -- offset for alignment char --"
  >

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

<!ELEMENT TABLE - - (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)>
<!ELEMENT CAPTION - - (%inline;)+>
<!ELEMENT THEAD - O (TR+)>
<!ELEMENT TFOOT - O (TR+)>
<!ELEMENT TBODY O O (TR+)>
<!ELEMENT COLGROUP - O (col*)>
<!ELEMENT COL - O EMPTY>
<!ELEMENT TR - O (TH|TD)+>
<!ELEMENT (TH|TD) - O %block>

<!ATTLIST TABLE                 -- table element --
  %attrs;                          -- %coreattrs, %i18n, %events --
  align       %TAlign;   #IMPLIED  -- table position relative to window --
  bgcolor     %Color     #IMPLIED  -- background color for cells --
  width       CDATA      #IMPLIED  -- table width relative to window --
  cols        NUMBER     #IMPLIED  -- used for immediate display mode --
  border      CDATA      #IMPLIED  -- controls frame width around table --
  frame       %TFrame;   #IMPLIED  -- which parts of table frame to include --
  rules       %TRules;   #IMPLIED  -- rulings between rows and cols --
  cellspacing CDATA      #IMPLIED  -- spacing between cells --
  cellpadding CDATA      #IMPLIED  -- spacing within cells --
  >

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

<!ATTLIST CAPTION               -- table caption --
  %attrs;                          -- %coreattrs, %i18n, %events --
  align       %CAlign;   #IMPLIED  -- relative to table --
  >

<!--
COLGROUP groups a set of COL elements. It allows you to group
several columns together.
-->
<!ATTLIST COLGROUP
  %attrs;                          -- %coreattrs, %i18n, %events --
  span        NUMBER     1         -- default number of columns in group --
  width       CDATA      #IMPLIED  -- default width for enclosed COLs --
  %cellhalign;                     -- horizontal alignment in cells --
  %cellvalign;                     -- vertical alignment in cells --
  >

<!--
 COL elements define the alignment properties for cells in a given
 column or spanned columns. The WIDTH attribute specifies the
 width of the columns, e.g.

     width=64        width in screen pixels
     width=0.5*      relative width of 0.5
-->
<!ATTLIST COL                   -- column groups and properties --
  %attrs;                          -- %coreattrs, %i18n, %events --
  span        NUMBER     1         -- number of columns spanned by group --
  width       CDATA      #IMPLIED  -- column width specification --
  %cellhalign;                     -- horizontal alignment in cells --
  %cellvalign;                     -- vertical alignment in cells --
  >

<!--
    Use THEAD to duplicate headers when breaking table
    across page boundaries, or for static headers when
    TBODY sections are rendered in scrolling panel.

    Use TFOOT to duplicate footers when breaking table
    across page boundaries, or for static footers when
    TBODY sections are rendered in scrolling panel.

    Use multiple TBODY sections when rules are needed
    between groups of table rows.
-->
<!ATTLIST (THEAD|TBODY|TFOOT)   -- table section --
  %attrs;                          -- %coreattrs, %i18n, %events --
  %cellhalign;                     -- horizontal alignment in cells --
  %cellvalign;                     -- vertical alignment in cells --
  >

<!ATTLIST TR                    -- table row --
  %attrs;                          -- %coreattrs, %i18n, %events --
  %cellhalign;                     -- horizontal alignment in cells --
  %cellvalign;                     -- vertical alignment in cells --
  bgcolor     %Color     #IMPLIED  -- background color for row --
  >

<!ATTLIST (TH|TD)               -- header or data cell --
  %attrs;                          -- %coreattrs, %i18n, %events --
  axis        CDATA      #IMPLIED  -- defaults to cell content --
  axes        CDATA      #IMPLIED  -- list of axis names --
  nowrap      (nowrap)   #IMPLIED  -- suppress word wrap --
  bgcolor     %Color     #IMPLIED  -- cell background color --
  rowspan     NUMBER     1         -- number of rows spanned by cell --
  colspan     NUMBER     1         -- number of cols spanned by cell --
  %cellhalign;                     -- horizontal alignment in cells --
  %cellvalign;                     -- vertical alignment in cells --
  >

<!--================== Document Frames ===================================-->

<!ELEMENT FRAMESET - - ((FRAMESET|FRAME)+ & NOFRAMES?)>
<!ATTLIST FRAMESET
  -- absolute pixel values, percentages or relative scales. --
  rows        CDATA      #IMPLIED  -- if not given, default is 1 row --
  cols        CDATA      #IMPLIED  -- if not given, default is 1 column --
  onload      %Script    #IMPLIED  -- all the frames have been loaded  -- 
  onunload    %Script    #IMPLIED  -- all the frames have been removed -- 
  >

<!-- reserved frame names start with "_" otherwise starts with letter -->
<!ELEMENT FRAME - O EMPTY>
<!ATTLIST FRAME
  name        CDATA      #IMPLIED  -- name of frame for targetting --
  src         %URL       #IMPLIED  -- source of frame content --
  frameborder 0          1         -- request frame borders? --
  marginwidth %Pixels    #IMPLIED  -- margin widths in pixels --
  marginheight %Pixels   #IMPLIED  -- margin height in pixels --
  noresize    (noresize) #IMPLIED  -- allow users to resize frames? --
  scrolling (yes|no|auto) auto     -- scrollbar or none --
  >

<!ELEMENT IFRAME - - %block>
<!ATTLIST IFRAME
  name        CDATA      #IMPLIED  -- name of frame for targetting --
  src         %URL       #IMPLIED  -- source of frame content --
  frameborder (v1|v0)      v1         -- request frame borders? --
  marginwidth %Pixels    #IMPLIED  -- margin widths in pixels --
  marginheight %Pixels   #IMPLIED  -- margin height in pixels --
  scrolling (yes|no|auto) auto     -- scrollbar or none --
  align       %IAlign    #IMPLIED  -- vertical or horizontal alignment --
  height      %Length    #IMPLIED  -- suggested height --
  width       %Length    #IMPLIED  -- suggested width --
  >

<!--
 The following is quite complicated because of the mixed
 content model. However it's actually only meant to contain
 either BODY or %block.
 -->
<!ELEMENT NOFRAMES - -
 (#PCDATA,((BODY,#PCDATA)|
           (((%blocklevel)|%font|%phrase|%special|%formctrl),%block)))>

<!--================ Document Head =======================================-->
<!-- %head.misc defined earlier on as "SCRIPT | STYLE | META | LINK" -->
<!ENTITY % head.content "TITLE & ISINDEX? & BASE?">

<!ELEMENT HEAD O O  (%head.content) +(%head.misc)>
<!ATTLIST HEAD
  %i18n;                           -- lang, dir --
  profile     %URL       #IMPLIED  -- named dictionary of meta info --
  >

<!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. Exactly one title is required per document.
    -->
<!ATTLIST TITLE %i18n>

<!ELEMENT ISINDEX - O EMPTY>
<!ATTLIST ISINDEX
  %coreattrs;                      -- id, class, style, title --
  %i18n;                           -- lang, dir --
  prompt      CDATA      #IMPLIED  -- prompt message -->

<!ELEMENT BASE - O EMPTY>
<!ATTLIST BASE
  href        %URL       #REQUIRED
  target      CDATA      #IMPLIED  -- where to render linked resource --
  >

<!ELEMENT META - O EMPTY        -- Generic Metainformation -->
<!ATTLIST META
  %i18n;                           -- lang, dir, for use with content string --
  http-equiv  NAME       #IMPLIED  -- HTTP response header name  --
  name        NAME       #IMPLIED  -- metainformation name --
  content     CDATA      #REQUIRED -- associated information --
  scheme      CDATA      #IMPLIED  -- select form of content --
  >

<!ELEMENT STYLE - - CDATA      -- style info -->
<!ATTLIST STYLE
  %i18n;                           -- lang, dir, for use with title --
  type        CDATA      #REQUIRED -- Internet content type
                                      for style language --
  media       CDATA      #IMPLIED  -- designed for use with these media --
  title       CDATA      #IMPLIED  -- advisory title --
  >

    
<!ELEMENT SCRIPT - - CDATA      -- script statements -->
<!ATTLIST SCRIPT
  type        CDATA      #IMPLIED  -- Internet content type for
                                      script language --
  language    CDATA      #IMPLIED  -- predefined script language name --
  src         %URL       #IMPLIED  -- URL for an external script --
  >

<!ELEMENT NOSCRIPT - - (%block)>

<!--================ Document Structure ==================================-->
<!ENTITY % version "version CDATA #FIXED '%HTML.Version;'">

<!ENTITY % html.content "HEAD, (FRAMESET|BODY)">

<!ELEMENT HTML O O (%html.content)>
<!ATTLIST HTML
  %version;
  %i18n;                           -- lang, dir --
  >
