<!--
    This is a sample DTD that adds support for WAI-ARIA to the HTML 
    4.01 Transitional DTD.

          Draft: $Date: 2011/01/19 15:23:53 $

    Further information about HTML 4.01 is available at:

        http://www.w3.org/TR/1999/REC-html401-19991224
    
    Further information about WAI-ARIA is available at:
    
        http://www.w3.org/TR/WAI-ARIA/

    The relevant specifications include additional
    syntactic constraints that cannot be expressed within
    the DTDs.

-->
<!ENTITY % HTML.Version "-//W3C//DTD HTML+ARIA 1.0//EN"
  -- Typical usage:

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML+ARIA 1.0//EN"
            "http://www.w3.org/WAI/ARIA/schemata/html4-aria-1.dtd">
    <html>
    <head>
    ...
    </head>
    <body>
    ...
    </body>
    </html>

    The URI used as a system identifier with the public identifier allows
    the user agent to download the DTD and entity sets as needed.

    The FPI for the HTML 4.01 plus WAI-ARIA DTD is:

        "-//W3C//DTD HTML+ARIA 1.0//EN"

    This version of the HTML 4.01 plus WAI-ARIA DTD is:

        http://www.w3.org/WAI/ARIA/schemata/html4-aria-1.dtd

-->
<!--================== Imported Names ====================================-->
<!-- Feature Switch for frameset documents -->
<!ENTITY % HTML.Frameset "IGNORE">

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

<!ENTITY % ContentTypes "CDATA"
    -- comma-separated list of media types, as per [RFC2045]
    -->

<!ENTITY % Charset "CDATA"
    -- a character encoding, as per [RFC2045]
    -->

<!ENTITY % Charsets "CDATA"
    -- a space-separated list of character encodings, as per [RFC2045]
    -->

<!ENTITY % LanguageCode "NAME"
    -- a language code, as per [RFC1766]
    -->

<!ENTITY % Character "CDATA"
    -- a single character from [ISO10646] 
    -->

<!ENTITY % LinkTypes "CDATA"
    -- space-separated list of link types
    -->

<!ENTITY % MediaDesc "CDATA"
    -- single or comma-separated list of media descriptors
    -->

<!ENTITY % URI "CDATA"
    -- a Uniform Resource Identifier,
       see [URI]
    -->

<!ENTITY % Datetime "CDATA" -- date and time information. ISO date format -->


<!ENTITY % Script "CDATA" -- script expression -->

<!ENTITY % StyleSheet "CDATA" -- style sheet data -->

<!ENTITY % FrameTarget "CDATA" -- render in this frame -->


<!ENTITY % Text "CDATA">


<!-- Parameter Entities -->

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

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

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

<!ENTITY % preformatted "PRE">

<!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  -- document background color --
  text        %Color;        #IMPLIED  -- document text color --
  link        %Color;        #IMPLIED  -- color of links --
  vlink       %Color;        #IMPLIED  -- color of visited links --
  alink       %Color;        #IMPLIED  -- color of selected links --
  ">

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

<!-- Portions (C) International Organization for Standardization 1986
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.
-->
<!-- Character entity set. Typical invocation:
     <!ENTITY % HTMLlat1 PUBLIC
       "-//W3C//ENTITIES Latin 1//EN//HTML">
     %HTMLlat1;
-->

<!ENTITY nbsp   CDATA "&#160;" -- no-break space = non-breaking space,
                                  U+00A0 ISOnum -->
<!ENTITY iexcl  CDATA "&#161;" -- inverted exclamation mark, U+00A1 ISOnum -->
<!ENTITY cent   CDATA "&#162;" -- cent sign, U+00A2 ISOnum -->
<!ENTITY pound  CDATA "&#163;" -- pound sign, U+00A3 ISOnum -->
<!ENTITY curren CDATA "&#164;" -- currency sign, U+00A4 ISOnum -->
<!ENTITY yen    CDATA "&#165;" -- yen sign = yuan sign, U+00A5 ISOnum -->
<!ENTITY brvbar CDATA "&#166;" -- broken bar = broken vertical bar,
                                  U+00A6 ISOnum -->
<!ENTITY sect   CDATA "&#167;" -- section sign, U+00A7 ISOnum -->
<!ENTITY uml    CDATA "&#168;" -- diaeresis = spacing diaeresis,
                                  U+00A8 ISOdia -->
<!ENTITY copy   CDATA "&#169;" -- copyright sign, U+00A9 ISOnum -->
<!ENTITY ordf   CDATA "&#170;" -- feminine ordinal indicator, U+00AA ISOnum -->
<!ENTITY laquo  CDATA "&#171;" -- left-pointing double angle quotation mark
                                  = left pointing guillemet, U+00AB ISOnum -->
<!ENTITY not    CDATA "&#172;" -- not sign, U+00AC ISOnum -->
<!ENTITY shy    CDATA "&#173;" -- soft hyphen = discretionary hyphen,
                                  U+00AD ISOnum -->
<!ENTITY reg    CDATA "&#174;" -- registered sign = registered trade mark sign,
                                  U+00AE ISOnum -->
<!ENTITY macr   CDATA "&#175;" -- macron = spacing macron = overline
                                  = APL overbar, U+00AF ISOdia -->
<!ENTITY deg    CDATA "&#176;" -- degree sign, U+00B0 ISOnum -->
<!ENTITY plusmn CDATA "&#177;" -- plus-minus sign = plus-or-minus sign,
                                  U+00B1 ISOnum -->
<!ENTITY sup2   CDATA "&#178;" -- superscript two = superscript digit two
                                  = squared, U+00B2 ISOnum -->
<!ENTITY sup3   CDATA "&#179;" -- superscript three = superscript digit three
                                  = cubed, U+00B3 ISOnum -->
<!ENTITY acute  CDATA "&#180;" -- acute accent = spacing acute,
                                  U+00B4 ISOdia -->
<!ENTITY micro  CDATA "&#181;" -- micro sign, U+00B5 ISOnum -->
<!ENTITY para   CDATA "&#182;" -- pilcrow sign = paragraph sign,
                                  U+00B6 ISOnum -->
<!ENTITY middot CDATA "&#183;" -- middle dot = Georgian comma
                                  = Greek middle dot, U+00B7 ISOnum -->
<!ENTITY cedil  CDATA "&#184;" -- cedilla = spacing cedilla, U+00B8 ISOdia -->
<!ENTITY sup1   CDATA "&#185;" -- superscript one = superscript digit one,
                                  U+00B9 ISOnum -->
<!ENTITY ordm   CDATA "&#186;" -- masculine ordinal indicator,
                                  U+00BA ISOnum -->
<!ENTITY raquo  CDATA "&#187;" -- right-pointing double angle quotation mark
                                  = right pointing guillemet, U+00BB ISOnum -->
<!ENTITY frac14 CDATA "&#188;" -- vulgar fraction one quarter
                                  = fraction one quarter, U+00BC ISOnum -->
<!ENTITY frac12 CDATA "&#189;" -- vulgar fraction one half
                                  = fraction one half, U+00BD ISOnum -->
<!ENTITY frac34 CDATA "&#190;" -- vulgar fraction three quarters
                                  = fraction three quarters, U+00BE ISOnum -->
<!ENTITY iquest CDATA "&#191;" -- inverted question mark
                                  = turned question mark, U+00BF ISOnum -->
<!ENTITY Agrave CDATA "&#192;" -- latin capital letter A with grave
                                  = latin capital letter A grave,
                                  U+00C0 ISOlat1 -->
<!ENTITY Aacute CDATA "&#193;" -- latin capital letter A with acute,
                                  U+00C1 ISOlat1 -->
<!ENTITY Acirc  CDATA "&#194;" -- latin capital letter A with circumflex,
                                  U+00C2 ISOlat1 -->
<!ENTITY Atilde CDATA "&#195;" -- latin capital letter A with tilde,
                                  U+00C3 ISOlat1 -->
<!ENTITY Auml   CDATA "&#196;" -- latin capital letter A with diaeresis,
                                  U+00C4 ISOlat1 -->
<!ENTITY Aring  CDATA "&#197;" -- latin capital letter A with ring above
                                  = latin capital letter A ring,
                                  U+00C5 ISOlat1 -->
<!ENTITY AElig  CDATA "&#198;" -- latin capital letter AE
                                  = latin capital ligature AE,
                                  U+00C6 ISOlat1 -->
<!ENTITY Ccedil CDATA "&#199;" -- latin capital letter C with cedilla,
                                  U+00C7 ISOlat1 -->
<!ENTITY Egrave CDATA "&#200;" -- latin capital letter E with grave,
                                  U+00C8 ISOlat1 -->
<!ENTITY Eacute CDATA "&#201;" -- latin capital letter E with acute,
                                  U+00C9 ISOlat1 -->
<!ENTITY Ecirc  CDATA "&#202;" -- latin capital letter E with circumflex,
                                  U+00CA ISOlat1 -->
<!ENTITY Euml   CDATA "&#203;" -- latin capital letter E with diaeresis,
                                  U+00CB ISOlat1 -->
<!ENTITY Igrave CDATA "&#204;" -- latin capital letter I with grave,
                                  U+00CC ISOlat1 -->
<!ENTITY Iacute CDATA "&#205;" -- latin capital letter I with acute,
                                  U+00CD ISOlat1 -->
<!ENTITY Icirc  CDATA "&#206;" -- latin capital letter I with circumflex,
                                  U+00CE ISOlat1 -->
<!ENTITY Iuml   CDATA "&#207;" -- latin capital letter I with diaeresis,
                                  U+00CF ISOlat1 -->
<!ENTITY ETH    CDATA "&#208;" -- latin capital letter ETH, U+00D0 ISOlat1 -->
<!ENTITY Ntilde CDATA "&#209;" -- latin capital letter N with tilde,
                                  U+00D1 ISOlat1 -->
<!ENTITY Ograve CDATA "&#210;" -- latin capital letter O with grave,
                                  U+00D2 ISOlat1 -->
<!ENTITY Oacute CDATA "&#211;" -- latin capital letter O with acute,
                                  U+00D3 ISOlat1 -->
<!ENTITY Ocirc  CDATA "&#212;" -- latin capital letter O with circumflex,
                                  U+00D4 ISOlat1 -->
<!ENTITY Otilde CDATA "&#213;" -- latin capital letter O with tilde,
                                  U+00D5 ISOlat1 -->
<!ENTITY Ouml   CDATA "&#214;" -- latin capital letter O with diaeresis,
                                  U+00D6 ISOlat1 -->
<!ENTITY times  CDATA "&#215;" -- multiplication sign, U+00D7 ISOnum -->
<!ENTITY Oslash CDATA "&#216;" -- latin capital letter O with stroke
                                  = latin capital letter O slash,
                                  U+00D8 ISOlat1 -->
<!ENTITY Ugrave CDATA "&#217;" -- latin capital letter U with grave,
                                  U+00D9 ISOlat1 -->
<!ENTITY Uacute CDATA "&#218;" -- latin capital letter U with acute,
                                  U+00DA ISOlat1 -->
<!ENTITY Ucirc  CDATA "&#219;" -- latin capital letter U with circumflex,
                                  U+00DB ISOlat1 -->
<!ENTITY Uuml   CDATA "&#220;" -- latin capital letter U with diaeresis,
                                  U+00DC ISOlat1 -->
<!ENTITY Yacute CDATA "&#221;" -- latin capital letter Y with acute,
                                  U+00DD ISOlat1 -->
<!ENTITY THORN  CDATA "&#222;" -- latin capital letter THORN,
                                  U+00DE ISOlat1 -->
<!ENTITY szlig  CDATA "&#223;" -- latin small letter sharp s = ess-zed,
                                  U+00DF ISOlat1 -->
<!ENTITY agrave CDATA "&#224;" -- latin small letter a with grave
                                  = latin small letter a grave,
                                  U+00E0 ISOlat1 -->
<!ENTITY aacute CDATA "&#225;" -- latin small letter a with acute,
                                  U+00E1 ISOlat1 -->
<!ENTITY acirc  CDATA "&#226;" -- latin small letter a with circumflex,
                                  U+00E2 ISOlat1 -->
<!ENTITY atilde CDATA "&#227;" -- latin small letter a with tilde,
                                  U+00E3 ISOlat1 -->
<!ENTITY auml   CDATA "&#228;" -- latin small letter a with diaeresis,
                                  U+00E4 ISOlat1 -->
<!ENTITY aring  CDATA "&#229;" -- latin small letter a with ring above
                                  = latin small letter a ring,
                                  U+00E5 ISOlat1 -->
<!ENTITY aelig  CDATA "&#230;" -- latin small letter ae
                                  = latin small ligature ae, U+00E6 ISOlat1 -->
<!ENTITY ccedil CDATA "&#231;" -- latin small letter c with cedilla,
                                  U+00E7 ISOlat1 -->
<!ENTITY egrave CDATA "&#232;" -- latin small letter e with grave,
                                  U+00E8 ISOlat1 -->
<!ENTITY eacute CDATA "&#233;" -- latin small letter e with acute,
                                  U+00E9 ISOlat1 -->
<!ENTITY ecirc  CDATA "&#234;" -- latin small letter e with circumflex,
                                  U+00EA ISOlat1 -->
<!ENTITY euml   CDATA "&#235;" -- latin small letter e with diaeresis,
                                  U+00EB ISOlat1 -->
<!ENTITY igrave CDATA "&#236;" -- latin small letter i with grave,
                                  U+00EC ISOlat1 -->
<!ENTITY iacute CDATA "&#237;" -- latin small letter i with acute,
                                  U+00ED ISOlat1 -->
<!ENTITY icirc  CDATA "&#238;" -- latin small letter i with circumflex,
                                  U+00EE ISOlat1 -->
<!ENTITY iuml   CDATA "&#239;" -- latin small letter i with diaeresis,
                                  U+00EF ISOlat1 -->
<!ENTITY eth    CDATA "&#240;" -- latin small letter eth, U+00F0 ISOlat1 -->
<!ENTITY ntilde CDATA "&#241;" -- latin small letter n with tilde,
                                  U+00F1 ISOlat1 -->
<!ENTITY ograve CDATA "&#242;" -- latin small letter o with grave,
                                  U+00F2 ISOlat1 -->
<!ENTITY oacute CDATA "&#243;" -- latin small letter o with acute,
                                  U+00F3 ISOlat1 -->
<!ENTITY ocirc  CDATA "&#244;" -- latin small letter o with circumflex,
                                  U+00F4 ISOlat1 -->
<!ENTITY otilde CDATA "&#245;" -- latin small letter o with tilde,
                                  U+00F5 ISOlat1 -->
<!ENTITY ouml   CDATA "&#246;" -- latin small letter o with diaeresis,
                                  U+00F6 ISOlat1 -->
<!ENTITY divide CDATA "&#247;" -- division sign, U+00F7 ISOnum -->
<!ENTITY oslash CDATA "&#248;" -- latin small letter o with stroke,
                                  = latin small letter o slash,
                                  U+00F8 ISOlat1 -->
<!ENTITY ugrave CDATA "&#249;" -- latin small letter u with grave,
                                  U+00F9 ISOlat1 -->
<!ENTITY uacute CDATA "&#250;" -- latin small letter u with acute,
                                  U+00FA ISOlat1 -->
<!ENTITY ucirc  CDATA "&#251;" -- latin small letter u with circumflex,
                                  U+00FB ISOlat1 -->
<!ENTITY uuml   CDATA "&#252;" -- latin small letter u with diaeresis,
                                  U+00FC ISOlat1 -->
<!ENTITY yacute CDATA "&#253;" -- latin small letter y with acute,
                                  U+00FD ISOlat1 -->
<!ENTITY thorn  CDATA "&#254;" -- latin small letter thorn,
                                  U+00FE ISOlat1 -->
<!ENTITY yuml   CDATA "&#255;" -- latin small letter y with diaeresis,
                                  U+00FF ISOlat1 -->

<!-- Special characters for HTML -->

<!-- Character entity set. Typical invocation:
     <!ENTITY % HTMLspecial PUBLIC
       "-//W3C//ENTITIES Special//EN//HTML">
     %HTMLspecial; -->

<!-- Portions (C) International Organization for Standardization 1986:
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.
-->

<!-- Relevant ISO entity set is given unless names are newly introduced.
     New names (i.e., not in ISO 8879 list) do not clash with any
     existing ISO 8879 entity names. ISO 10646 character numbers
     are given for each character, in hex. CDATA values are decimal
     conversions of the ISO 10646 values and refer to the document
     character set. Names are ISO 10646 names. 

-->

<!-- C0 Controls and Basic Latin -->
<!ENTITY quot    CDATA "&#34;"   -- quotation mark = APL quote,
                                    U+0022 ISOnum -->
<!ENTITY amp     CDATA "&#38;"   -- ampersand, U+0026 ISOnum -->
<!ENTITY lt      CDATA "&#60;"   -- less-than sign, U+003C ISOnum -->
<!ENTITY gt      CDATA "&#62;"   -- greater-than sign, U+003E ISOnum -->

<!-- Latin Extended-A -->
<!ENTITY OElig   CDATA "&#338;"  -- latin capital ligature OE,
                                    U+0152 ISOlat2 -->
<!ENTITY oelig   CDATA "&#339;"  -- latin small ligature oe, U+0153 ISOlat2 -->
<!-- ligature is a misnomer, this is a separate character in some languages -->
<!ENTITY Scaron  CDATA "&#352;"  -- latin capital letter S with caron,
                                    U+0160 ISOlat2 -->
<!ENTITY scaron  CDATA "&#353;"  -- latin small letter s with caron,
                                    U+0161 ISOlat2 -->
<!ENTITY Yuml    CDATA "&#376;"  -- latin capital letter Y with diaeresis,
                                    U+0178 ISOlat2 -->

<!-- Spacing Modifier Letters -->
<!ENTITY circ    CDATA "&#710;"  -- modifier letter circumflex accent,
                                    U+02C6 ISOpub -->
<!ENTITY tilde   CDATA "&#732;"  -- small tilde, U+02DC ISOdia -->

<!-- General Punctuation -->
<!ENTITY ensp    CDATA "&#8194;" -- en space, U+2002 ISOpub -->
<!ENTITY emsp    CDATA "&#8195;" -- em space, U+2003 ISOpub -->
<!ENTITY thinsp  CDATA "&#8201;" -- thin space, U+2009 ISOpub -->
<!ENTITY zwnj    CDATA "&#8204;" -- zero width non-joiner,
                                    U+200C NEW RFC 2070 -->
<!ENTITY zwj     CDATA "&#8205;" -- zero width joiner, U+200D NEW RFC 2070 -->
<!ENTITY lrm     CDATA "&#8206;" -- left-to-right mark, U+200E NEW RFC 2070 -->
<!ENTITY rlm     CDATA "&#8207;" -- right-to-left mark, U+200F NEW RFC 2070 -->
<!ENTITY ndash   CDATA "&#8211;" -- en dash, U+2013 ISOpub -->
<!ENTITY mdash   CDATA "&#8212;" -- em dash, U+2014 ISOpub -->
<!ENTITY lsquo   CDATA "&#8216;" -- left single quotation mark,
                                    U+2018 ISOnum -->
<!ENTITY rsquo   CDATA "&#8217;" -- right single quotation mark,
                                    U+2019 ISOnum -->
<!ENTITY sbquo   CDATA "&#8218;" -- single low-9 quotation mark, U+201A NEW -->
<!ENTITY ldquo   CDATA "&#8220;" -- left double quotation mark,
                                    U+201C ISOnum -->
<!ENTITY rdquo   CDATA "&#8221;" -- right double quotation mark,
                                    U+201D ISOnum -->
<!ENTITY bdquo   CDATA "&#8222;" -- double low-9 quotation mark, U+201E NEW -->
<!ENTITY dagger  CDATA "&#8224;" -- dagger, U+2020 ISOpub -->
<!ENTITY Dagger  CDATA "&#8225;" -- double dagger, U+2021 ISOpub -->
<!ENTITY permil  CDATA "&#8240;" -- per mille sign, U+2030 ISOtech -->
<!ENTITY lsaquo  CDATA "&#8249;" -- single left-pointing angle quotation mark,
                                    U+2039 ISO proposed -->
<!-- lsaquo is proposed but not yet ISO standardized -->
<!ENTITY rsaquo  CDATA "&#8250;" -- single right-pointing angle quotation mark,
                                    U+203A ISO proposed -->
<!-- rsaquo is proposed but not yet ISO standardized -->
<!ENTITY euro   CDATA "&#8364;"  -- euro sign, U+20AC NEW -->

<!-- Mathematical, Greek and Symbolic characters for HTML -->

<!-- Character entity set. Typical invocation:
     <!ENTITY % HTMLsymbol PUBLIC
       "-//W3C//ENTITIES Symbols//EN//HTML">
     %HTMLsymbol; -->

<!-- Portions (C) International Organization for Standardization 1986:
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.
-->

<!-- Relevant ISO entity set is given unless names are newly introduced.
     New names (i.e., not in ISO 8879 list) do not clash with any
     existing ISO 8879 entity names. ISO 10646 character numbers
     are given for each character, in hex. CDATA values are decimal
     conversions of the ISO 10646 values and refer to the document
     character set. Names are ISO 10646 names. 

-->

<!-- Latin Extended-B -->
<!ENTITY fnof     CDATA "&#402;" -- latin small f with hook = function
                                    = florin, U+0192 ISOtech -->

<!-- Greek -->
<!ENTITY Alpha    CDATA "&#913;" -- greek capital letter alpha, U+0391 -->
<!ENTITY Beta     CDATA "&#914;" -- greek capital letter beta, U+0392 -->
<!ENTITY Gamma    CDATA "&#915;" -- greek capital letter gamma,
                                    U+0393 ISOgrk3 -->
<!ENTITY Delta    CDATA "&#916;" -- greek capital letter delta,
                                    U+0394 ISOgrk3 -->
<!ENTITY Epsilon  CDATA "&#917;" -- greek capital letter epsilon, U+0395 -->
<!ENTITY Zeta     CDATA "&#918;" -- greek capital letter zeta, U+0396 -->
<!ENTITY Eta      CDATA "&#919;" -- greek capital letter eta, U+0397 -->
<!ENTITY Theta    CDATA "&#920;" -- greek capital letter theta,
                                    U+0398 ISOgrk3 -->
<!ENTITY Iota     CDATA "&#921;" -- greek capital letter iota, U+0399 -->
<!ENTITY Kappa    CDATA "&#922;" -- greek capital letter kappa, U+039A -->
<!ENTITY Lambda   CDATA "&#923;" -- greek capital letter lambda,
                                    U+039B ISOgrk3 -->
<!ENTITY Mu       CDATA "&#924;" -- greek capital letter mu, U+039C -->
<!ENTITY Nu       CDATA "&#925;" -- greek capital letter nu, U+039D -->
<!ENTITY Xi       CDATA "&#926;" -- greek capital letter xi, U+039E ISOgrk3 -->
<!ENTITY Omicron  CDATA "&#927;" -- greek capital letter omicron, U+039F -->
<!ENTITY Pi       CDATA "&#928;" -- greek capital letter pi, U+03A0 ISOgrk3 -->
<!ENTITY Rho      CDATA "&#929;" -- greek capital letter rho, U+03A1 -->
<!-- there is no Sigmaf, and no U+03A2 character either -->
<!ENTITY Sigma    CDATA "&#931;" -- greek capital letter sigma,
                                    U+03A3 ISOgrk3 -->
<!ENTITY Tau      CDATA "&#932;" -- greek capital letter tau, U+03A4 -->
<!ENTITY Upsilon  CDATA "&#933;" -- greek capital letter upsilon,
                                    U+03A5 ISOgrk3 -->
<!ENTITY Phi      CDATA "&#934;" -- greek capital letter phi,
                                    U+03A6 ISOgrk3 -->
<!ENTITY Chi      CDATA "&#935;" -- greek capital letter chi, U+03A7 -->
<!ENTITY Psi      CDATA "&#936;" -- greek capital letter psi,
                                    U+03A8 ISOgrk3 -->
<!ENTITY Omega    CDATA "&#937;" -- greek capital letter omega,
                                    U+03A9 ISOgrk3 -->

<!ENTITY alpha    CDATA "&#945;" -- greek small letter alpha,
                                    U+03B1 ISOgrk3 -->
<!ENTITY beta     CDATA "&#946;" -- greek small letter beta, U+03B2 ISOgrk3 -->
<!ENTITY gamma    CDATA "&#947;" -- greek small letter gamma,
                                    U+03B3 ISOgrk3 -->
<!ENTITY delta    CDATA "&#948;" -- greek small letter delta,
                                    U+03B4 ISOgrk3 -->
<!ENTITY epsilon  CDATA "&#949;" -- greek small letter epsilon,
                                    U+03B5 ISOgrk3 -->
<!ENTITY zeta     CDATA "&#950;" -- greek small letter zeta, U+03B6 ISOgrk3 -->
<!ENTITY eta      CDATA "&#951;" -- greek small letter eta, U+03B7 ISOgrk3 -->
<!ENTITY theta    CDATA "&#952;" -- greek small letter theta,
                                    U+03B8 ISOgrk3 -->
<!ENTITY iota     CDATA "&#953;" -- greek small letter iota, U+03B9 ISOgrk3 -->
<!ENTITY kappa    CDATA "&#954;" -- greek small letter kappa,
                                    U+03BA ISOgrk3 -->
<!ENTITY lambda   CDATA "&#955;" -- greek small letter lambda,
                                    U+03BB ISOgrk3 -->
<!ENTITY mu       CDATA "&#956;" -- greek small letter mu, U+03BC ISOgrk3 -->
<!ENTITY nu       CDATA "&#957;" -- greek small letter nu, U+03BD ISOgrk3 -->
<!ENTITY xi       CDATA "&#958;" -- greek small letter xi, U+03BE ISOgrk3 -->
<!ENTITY omicron  CDATA "&#959;" -- greek small letter omicron, U+03BF NEW -->
<!ENTITY pi       CDATA "&#960;" -- greek small letter pi, U+03C0 ISOgrk3 -->
<!ENTITY rho      CDATA "&#961;" -- greek small letter rho, U+03C1 ISOgrk3 -->
<!ENTITY sigmaf   CDATA "&#962;" -- greek small letter final sigma,
                                    U+03C2 ISOgrk3 -->
<!ENTITY sigma    CDATA "&#963;" -- greek small letter sigma,
                                    U+03C3 ISOgrk3 -->
<!ENTITY tau      CDATA "&#964;" -- greek small letter tau, U+03C4 ISOgrk3 -->
<!ENTITY upsilon  CDATA "&#965;" -- greek small letter upsilon,
                                    U+03C5 ISOgrk3 -->
<!ENTITY phi      CDATA "&#966;" -- greek small letter phi, U+03C6 ISOgrk3 -->
<!ENTITY chi      CDATA "&#967;" -- greek small letter chi, U+03C7 ISOgrk3 -->
<!ENTITY psi      CDATA "&#968;" -- greek small letter psi, U+03C8 ISOgrk3 -->
<!ENTITY omega    CDATA "&#969;" -- greek small letter omega,
                                    U+03C9 ISOgrk3 -->
<!ENTITY thetasym CDATA "&#977;" -- greek small letter theta symbol,
                                    U+03D1 NEW -->
<!ENTITY upsih    CDATA "&#978;" -- greek upsilon with hook symbol,
                                    U+03D2 NEW -->
<!ENTITY piv      CDATA "&#982;" -- greek pi symbol, U+03D6 ISOgrk3 -->

<!-- General Punctuation -->
<!ENTITY bull     CDATA "&#8226;" -- bullet = black small circle,
                                     U+2022 ISOpub  -->
<!-- bullet is NOT the same as bullet operator, U+2219 -->
<!ENTITY hellip   CDATA "&#8230;" -- horizontal ellipsis = three dot leader,
                                     U+2026 ISOpub  -->
<!ENTITY prime    CDATA "&#8242;" -- prime = minutes = feet, U+2032 ISOtech -->
<!ENTITY Prime    CDATA "&#8243;" -- double prime = seconds = inches,
                                     U+2033 ISOtech -->
<!ENTITY oline    CDATA "&#8254;" -- overline = spacing overscore,
                                     U+203E NEW -->
<!ENTITY frasl    CDATA "&#8260;" -- fraction slash, U+2044 NEW -->

<!-- Letterlike Symbols -->
<!ENTITY weierp   CDATA "&#8472;" -- script capital P = power set
                                     = Weierstrass p, U+2118 ISOamso -->
<!ENTITY image    CDATA "&#8465;" -- blackletter capital I = imaginary part,
                                     U+2111 ISOamso -->
<!ENTITY real     CDATA "&#8476;" -- blackletter capital R = real part symbol,
                                     U+211C ISOamso -->
<!ENTITY trade    CDATA "&#8482;" -- trade mark sign, U+2122 ISOnum -->
<!ENTITY alefsym  CDATA "&#8501;" -- alef symbol = first transfinite cardinal,
                                     U+2135 NEW -->
<!-- alef symbol is NOT the same as hebrew letter alef,
     U+05D0 although the same glyph could be used to depict both characters -->

<!-- Arrows -->
<!ENTITY larr     CDATA "&#8592;" -- leftwards arrow, U+2190 ISOnum -->
<!ENTITY uarr     CDATA "&#8593;" -- upwards arrow, U+2191 ISOnum-->
<!ENTITY rarr     CDATA "&#8594;" -- rightwards arrow, U+2192 ISOnum -->
<!ENTITY darr     CDATA "&#8595;" -- downwards arrow, U+2193 ISOnum -->
<!ENTITY harr     CDATA "&#8596;" -- left right arrow, U+2194 ISOamsa -->
<!ENTITY crarr    CDATA "&#8629;" -- downwards arrow with corner leftwards
                                     = carriage return, U+21B5 NEW -->
<!ENTITY lArr     CDATA "&#8656;" -- leftwards double arrow, U+21D0 ISOtech -->
<!-- ISO 10646 does not say that lArr is the same as the 'is implied by' arrow
    but also does not have any other character for that function. So ? lArr can
    be used for 'is implied by' as ISOtech suggests -->
<!ENTITY uArr     CDATA "&#8657;" -- upwards double arrow, U+21D1 ISOamsa -->
<!ENTITY rArr     CDATA "&#8658;" -- rightwards double arrow,
                                     U+21D2 ISOtech -->
<!-- ISO 10646 does not say this is the 'implies' character but does not have 
     another character with this function so ?
     rArr can be used for 'implies' as ISOtech suggests -->
<!ENTITY dArr     CDATA "&#8659;" -- downwards double arrow, U+21D3 ISOamsa -->
<!ENTITY hArr     CDATA "&#8660;" -- left right double arrow,
                                     U+21D4 ISOamsa -->

<!-- Mathematical Operators -->
<!ENTITY forall   CDATA "&#8704;" -- for all, U+2200 ISOtech -->
<!ENTITY part     CDATA "&#8706;" -- partial differential, U+2202 ISOtech  -->
<!ENTITY exist    CDATA "&#8707;" -- there exists, U+2203 ISOtech -->
<!ENTITY empty    CDATA "&#8709;" -- empty set = null set = diameter,
                                     U+2205 ISOamso -->
<!ENTITY nabla    CDATA "&#8711;" -- nabla = backward difference,
                                     U+2207 ISOtech -->
<!ENTITY isin     CDATA "&#8712;" -- element of, U+2208 ISOtech -->
<!ENTITY notin    CDATA "&#8713;" -- not an element of, U+2209 ISOtech -->
<!ENTITY ni       CDATA "&#8715;" -- contains as member, U+220B ISOtech -->
<!-- should there be a more memorable name than 'ni'? -->
<!ENTITY prod     CDATA "&#8719;" -- n-ary product = product sign,
                                     U+220F ISOamsb -->
<!-- prod is NOT the same character as U+03A0 'greek capital letter pi' though
     the same glyph might be used for both -->
<!ENTITY sum      CDATA "&#8721;" -- n-ary sumation, U+2211 ISOamsb -->
<!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
     though the same glyph might be used for both -->
<!ENTITY minus    CDATA "&#8722;" -- minus sign, U+2212 ISOtech -->
<!ENTITY lowast   CDATA "&#8727;" -- asterisk operator, U+2217 ISOtech -->
<!ENTITY radic    CDATA "&#8730;" -- square root = radical sign,
                                     U+221A ISOtech -->
<!ENTITY prop     CDATA "&#8733;" -- proportional to, U+221D ISOtech -->
<!ENTITY infin    CDATA "&#8734;" -- infinity, U+221E ISOtech -->
<!ENTITY ang      CDATA "&#8736;" -- angle, U+2220 ISOamso -->
<!ENTITY and      CDATA "&#8743;" -- logical and = wedge, U+2227 ISOtech -->
<!ENTITY or       CDATA "&#8744;" -- logical or = vee, U+2228 ISOtech -->
<!ENTITY cap      CDATA "&#8745;" -- intersection = cap, U+2229 ISOtech -->
<!ENTITY cup      CDATA "&#8746;" -- union = cup, U+222A ISOtech -->
<!ENTITY int      CDATA "&#8747;" -- integral, U+222B ISOtech -->
<!ENTITY there4   CDATA "&#8756;" -- therefore, U+2234 ISOtech -->
<!ENTITY sim      CDATA "&#8764;" -- tilde operator = varies with = similar to,
                                     U+223C ISOtech -->
<!-- tilde operator is NOT the same character as the tilde, U+007E,
     although the same glyph might be used to represent both  -->
<!ENTITY cong     CDATA "&#8773;" -- approximately equal to, U+2245 ISOtech -->
<!ENTITY asymp    CDATA "&#8776;" -- almost equal to = asymptotic to,
                                     U+2248 ISOamsr -->
<!ENTITY ne       CDATA "&#8800;" -- not equal to, U+2260 ISOtech -->
<!ENTITY equiv    CDATA "&#8801;" -- identical to, U+2261 ISOtech -->
<!ENTITY le       CDATA "&#8804;" -- less-than or equal to, U+2264 ISOtech -->
<!ENTITY ge       CDATA "&#8805;" -- greater-than or equal to,
                                     U+2265 ISOtech -->
<!ENTITY sub      CDATA "&#8834;" -- subset of, U+2282 ISOtech -->
<!ENTITY sup      CDATA "&#8835;" -- superset of, U+2283 ISOtech -->
<!-- note that nsup, 'not a superset of, U+2283' is not covered by the Symbol 
     font encoding and is not included. Should it be, for symmetry?
     It is in ISOamsn  --> 
<!ENTITY nsub     CDATA "&#8836;" -- not a subset of, U+2284 ISOamsn -->
<!ENTITY sube     CDATA "&#8838;" -- subset of or equal to, U+2286 ISOtech -->
<!ENTITY supe     CDATA "&#8839;" -- superset of or equal to,
                                     U+2287 ISOtech -->
<!ENTITY oplus    CDATA "&#8853;" -- circled plus = direct sum,
                                     U+2295 ISOamsb -->
<!ENTITY otimes   CDATA "&#8855;" -- circled times = vector product,
                                     U+2297 ISOamsb -->
<!ENTITY perp     CDATA "&#8869;" -- up tack = orthogonal to = perpendicular,
                                     U+22A5 ISOtech -->
<!ENTITY sdot     CDATA "&#8901;" -- dot operator, U+22C5 ISOamsb -->
<!-- dot operator is NOT the same character as U+00B7 middle dot -->

<!-- Miscellaneous Technical -->
<!ENTITY lceil    CDATA "&#8968;" -- left ceiling = apl upstile,
                                     U+2308 ISOamsc  -->
<!ENTITY rceil    CDATA "&#8969;" -- right ceiling, U+2309 ISOamsc  -->
<!ENTITY lfloor   CDATA "&#8970;" -- left floor = apl downstile,
                                     U+230A ISOamsc  -->
<!ENTITY rfloor   CDATA "&#8971;" -- right floor, U+230B ISOamsc  -->
<!ENTITY lang     CDATA "&#9001;" -- left-pointing angle bracket = bra,
                                     U+2329 ISOtech -->
<!-- lang is NOT the same character as U+003C 'less than' 
     or U+2039 'single left-pointing angle quotation mark' -->
<!ENTITY rang     CDATA "&#9002;" -- right-pointing angle bracket = ket,
                                     U+232A ISOtech -->
<!-- rang is NOT the same character as U+003E 'greater than' 
     or U+203A 'single right-pointing angle quotation mark' -->

<!-- Geometric Shapes -->
<!ENTITY loz      CDATA "&#9674;" -- lozenge, U+25CA ISOpub -->

<!-- Miscellaneous Symbols -->
<!ENTITY spades   CDATA "&#9824;" -- black spade suit, U+2660 ISOpub -->
<!-- black here seems to mean filled as opposed to hollow -->
<!ENTITY clubs    CDATA "&#9827;" -- black club suit = shamrock,
                                     U+2663 ISOpub -->
<!ENTITY hearts   CDATA "&#9829;" -- black heart suit = valentine,
                                     U+2665 ISOpub -->
<!ENTITY diams    CDATA "&#9830;" -- black diamond suit, U+2666 ISOpub -->

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

<!ENTITY % coreattrs
 "id          ID             #IMPLIED  -- document-wide unique id --
  class       CDATA          #IMPLIED  -- space-separated list of classes --
  style       %StyleSheet;   #IMPLIED  -- associated style info --
  tabindex    NUMBER         #IMPLIED  -- position in tabbing order --
  role        NMTOKENS       #IMPLIED  -- alternate semantic for the element --
  title       %Text;         #IMPLIED  -- advisory title --"
  >

<!ENTITY % i18n
 "lang        %LanguageCode; #IMPLIED  -- language code --
  dir         (ltr|rtl)      #IMPLIED  -- direction for weak/neutral text --"
  >

<!ENTITY % events
 "onclick     %Script;       #IMPLIED  -- a pointer button was clicked --
  ondblclick  %Script;       #IMPLIED  -- a pointer button was double clicked--
  onmousedown %Script;       #IMPLIED  -- a pointer button was pressed down --
  onmouseup   %Script;       #IMPLIED  -- a pointer button was released --
  onmouseover %Script;       #IMPLIED  -- a pointer was moved onto --
  onmousemove %Script;       #IMPLIED  -- a pointer was moved within --
  onmouseout  %Script;       #IMPLIED  -- a pointer 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 % aria
"
    aria-activedescendant IDREF #IMPLIED  -- Identifies the currently active descendant of a composite widget. --
    aria-atomic ( true | false ) 'false'  -- Indicates whether assistive technologies will present all, or only parts of, the changed region based on the change notifications defined by the aria-relevant attribute. See related aria-relevant. --
    aria-autocomplete ( inline | list | both | none ) 'none'  -- Indicates whether user input completion suggestions are provided. --
    aria-busy ( true | false ) 'false'  -- Indicates whether an element, and its subtree, are currently being updated. --
    aria-checked ( true | false | mixed | undefined ) 'undefined'  -- Indicates the current checked state of checkboxes, radio buttons, and other widgets. See related aria-pressed and aria-selected. --
    aria-controls IDREFS #IMPLIED  -- Identifies the element (or elements) whose contents or presence are controlled by the current element. See related aria-owns. --
    aria-describedby IDREFS #IMPLIED  -- Identifies the element (or elements) that describes the object. See related aria-labelledby. --
    aria-disabled ( true | false ) 'false'  -- Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable. See related aria-hidden and aria-readonly. --
    aria-dropeffect NMTOKENS 'none'  -- Indicates what functions can be performed when the dragged object is released on the drop target. This allows assistive technologies to convey the possible drag options available to users, including whether a pop-up menu of choices is provided by the application. Typically, drop effect functions can only be provided once an object has been grabbed for a drag operation as the drop effect functions available are dependent on the object being dragged. --
    aria-expanded ( true | false | undefined ) 'undefined'  -- Indicates whether the element, or another grouping element it controls, is currently expanded or collapsed. --
    aria-flowto IDREFS #IMPLIED  -- Identifies the next element (or elements) in an alternate reading order of content which, at the user's discretion, allows assistive technology to override the general default of reading in document source order. --
    aria-grabbed ( true | false | undefined ) 'undefined'  -- Indicates an element's grabbed state in a drag-and-drop operation. --
    aria-haspopup ( true | false ) 'false'  -- Indicates that the element has a popup context menu or sub-level menu. --
    aria-hidden ( true | false ) 'false'  -- Indicates that the element and all of its descendants are not visible or perceivable to any user as implemented by the author. See related aria-disabled. --
    aria-invalid ( grammar | false | spelling | true ) 'false'  -- Indicates the entered value does not conform to the format expected by the application. --
    aria-label CDATA #IMPLIED  -- Defines a string value that labels the current element. See related aria-labelledby. --
    aria-labelledby IDREFS #IMPLIED  -- Identifies the element (or elements) that labels the current element. See related aria-label and aria-describedby. --
    aria-level CDATA #IMPLIED  -- Defines the hierarchical level of an element within a structure. --
    aria-live ( off | polite | assertive ) 'off'  -- Indicates that an element will be updated, and describes the types of updates the user agents, assistive technologies, and user can expect from the live region. --
    aria-multiline ( true | false ) 'false'  -- Indicates whether a text box accepts multiple lines of input or only a single line. --
    aria-multiselectable ( true | false ) 'false'  -- Indicates that the user may select more than one item from the current selectable descendants. --
    aria-orientation ( vertical | horizontal ) 'horizontal'  -- Indicates whether the element and orientation is horizontal or vertical. --
    aria-owns IDREFS #IMPLIED  -- Identifies an element (or elements) in order to define a visual, functional, or contextual parent/child relationship between DOM elements where the DOM hierarchy cannot be used to represent the relationship. See related aria-controls. --
    aria-posinset CDATA #IMPLIED  -- Defines an element's number or position in the current set of listitems or treeitems. Not required if all elements in the set are present in the DOM. See related aria-setsize. --
    aria-pressed ( true | false | mixed | undefined ) 'undefined'  -- Indicates the current pressed state of toggle buttons. See related aria-checked and aria-selected. --
    aria-readonly ( true | false ) 'false'  --  Indicates that the element is not editable, but is otherwise operable. See related aria-disabled. --
    aria-relevant NMTOKENS 'additions text'  -- Indicates what user agent change notifications (additions, removals, etc.) assistive technologies will receive within a live region. See related aria-atomic. --
    aria-required ( true | false ) 'false'  -- Indicates that user input is required on the element before a form may be submitted. --
    aria-selected ( true | false | undefined ) 'undefined'  -- Indicates the current selected state of various widgets. See related aria-checked and aria-pressed. --
    aria-setsize CDATA #IMPLIED  -- Defines the number of items in the current set of listitems or treeitems. Not required if all elements in the set are present in the DOM. See related aria-posinset. --
    aria-sort ( ascending | descending | none | other ) 'none'  -- Indicates if items in a table or grid are sorted in ascending or descending order. --
    aria-valuemax CDATA #IMPLIED  -- Defines the maximum allowed value for a range widget. --
    aria-valuemin CDATA #IMPLIED  -- Defines the minimum allowed value for a range widget. --
    aria-valuenow CDATA #IMPLIED  -- Defines the current value for a range widget. See related aria-valuetext. --
    aria-valuetext CDATA #IMPLIED  -- Defines the human readable text alternative of aria-valuenow for a range widget. --
  "
>

<!-- Reserved Feature Switch -->
<!ENTITY % HTML.Reserved "IGNORE">

<!-- The following attributes are reserved for possible future use -->
<![ %HTML.Reserved; [
<!ENTITY % reserved
 "datasrc     %URI;          #IMPLIED  -- a single or tabular Data Source --
  datafld     CDATA          #IMPLIED  -- the property or column name --
  dataformatas (plaintext|html) plaintext -- text or html --"
  >
]]>

<!ENTITY % reserved "">

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

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

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

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

<!ENTITY % phrase "EM | STRONG | DFN | CODE |
                   SAMP | KBD | VAR | CITE | ABBR | 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 | %fontstyle; | %phrase; | %special; | %formctrl;">

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

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

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

<!ELEMENT BDO - - (%inline;)*          -- I18N BiDi over-ride -->
<!ATTLIST BDO
  %coreattrs;                          -- id, class, style, title --
  lang        %LanguageCode; #IMPLIED  -- language code --
  dir         (ltr|rtl)      #REQUIRED -- directionality --
  >

<!ELEMENT BASEFONT - O EMPTY           -- base font size -->
<!ATTLIST BASEFONT
  id          ID             #IMPLIED  -- document-wide unique id --
  size        CDATA          #REQUIRED -- base font size for FONT elements --
  color       %Color;        #IMPLIED  -- text color --
  face        CDATA          #IMPLIED  -- comma-separated list of font names --
  >

<!ELEMENT FONT - - (%inline;)*         -- local change to font -->
<!ATTLIST FONT
  %coreattrs;                          -- id, class, style, title --
  %i18n;		               -- lang, dir --
  size        CDATA          #IMPLIED  -- [+|-]nn e.g. size="+1", size="4" --
  color       %Color;        #IMPLIED  -- text color --
  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 % block
     "P | %heading; | %list; | %preformatted; | DL | DIV | CENTER |
      NOSCRIPT | NOFRAMES | BLOCKQUOTE | FORM | ISINDEX | HR |
      TABLE | FIELDSET | ADDRESS">

<!ENTITY % flow "%block; | %inline;">

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

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

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

<!ELEMENT DIV - - (%flow;)*            -- generic language/style container -->
<!ATTLIST DIV
  %attrs;                              -- %coreattrs, %i18n, %events --
  %align;                              -- align, text alignment --
  %reserved;                           -- reserved for possible future use --
  >

<!ELEMENT CENTER - - (%flow;)*         -- shorthand for DIV align=center -->
<!ATTLIST CENTER
  %attrs;                              -- %coreattrs, %i18n, %events --
  >

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

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

<!ELEMENT A - - (%inline;)* -(A)       -- anchor -->
<!ATTLIST A
  %attrs;                              -- %coreattrs, %i18n, %events --
  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --
  type        %ContentType;  #IMPLIED  -- advisory content type --
  name        CDATA          #IMPLIED  -- named link end --
  href        %URI;          #IMPLIED  -- URI for linked resource --
  hreflang    %LanguageCode; #IMPLIED  -- language code --
  target      %FrameTarget;  #IMPLIED  -- render in this frame --
  rel         %LinkTypes;    #IMPLIED  -- forward link types --
  rev         %LinkTypes;    #IMPLIED  -- reverse link types --
  accesskey   %Character;    #IMPLIED  -- accessibility key character --
  shape       %Shape;        rect      -- for use with client-side image maps --
  coords      %Coords;       #IMPLIED  -- for use with client-side image maps --
  onfocus     %Script;       #IMPLIED  -- the element got the focus --
  onblur      %Script;       #IMPLIED  -- the element lost the focus --
  >

<!--================== 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 - - ((%block;) | AREA)+ -- client-side image map -->
<!ATTLIST MAP
  %attrs;                              -- %coreattrs, %i18n, %events --
  name        CDATA          #REQUIRED -- for reference by usemap --
  >

<!ELEMENT AREA - O EMPTY               -- client-side image map area -->
<!ATTLIST AREA
  %attrs;                              -- %coreattrs, %i18n, %events --
  shape       %Shape;        rect      -- controls interpretation of coords --
  coords      %Coords;       #IMPLIED  -- comma-separated list of lengths --
  href        %URI;          #IMPLIED  -- URI for linked resource --
  target      %FrameTarget;  #IMPLIED  -- render in this frame --
  nohref      (nohref)       #IMPLIED  -- this region has no action --
  alt         %Text;         #REQUIRED -- short description --
  accesskey   %Character;    #IMPLIED  -- accessibility key character --
  onfocus     %Script;       #IMPLIED  -- the element got the focus --
  onblur      %Script;       #IMPLIED  -- the element lost the focus --
  >

<!--================== 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=alternate media=print)
-->

<!ELEMENT LINK - O EMPTY               -- a media-independent link -->
<!ATTLIST LINK
  %attrs;                              -- %coreattrs, %i18n, %events --
  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --
  href        %URI;          #IMPLIED  -- URI for linked resource --
  hreflang    %LanguageCode; #IMPLIED  -- language code --
  type        %ContentType;  #IMPLIED  -- advisory content type --
  rel         %LinkTypes;    #IMPLIED  -- forward link types --
  rev         %LinkTypes;    #IMPLIED  -- reverse link types --
  media       %MediaDesc;    #IMPLIED  -- for rendering on these media --
  target      %FrameTarget;  #IMPLIED  -- render in this frame --
  >

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

<!-- Length defined in strict DTD for cellpadding/cellspacing -->
<!ENTITY % Length "CDATA" -- nn for pixels or nn% for percentage length -->
<!ENTITY % MultiLength "CDATA" -- pixel, percentage, or relative -->

<![ %HTML.Frameset; [
<!ENTITY % MultiLengths "CDATA" -- comma-separated list of MultiLength -->
]]>

<!ENTITY % Pixels "CDATA" -- integer representing length in pixels -->

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

<!-- To avoid problems with text-only UAs as well as 
   to make image content understandable and navigable 
   to users of non-visual 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         %URI;          #REQUIRED -- URI of image to embed --
  alt         %Text;         #REQUIRED -- short description --
  longdesc    %URI;          #IMPLIED  -- link to long description
                                          (complements alt) --
  name        CDATA          #IMPLIED  -- name of image for scripting --
  height      %Length;       #IMPLIED  -- override height --
  width       %Length;       #IMPLIED  -- override width --
  usemap      %URI;          #IMPLIED  -- use client-side image map --
  ismap       (ismap)        #IMPLIED  -- use server-side image map --
  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --
  border      %Pixels;       #IMPLIED  -- link border width --
  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --
  vspace      %Pixels;       #IMPLIED  -- vertical gutter --
  >

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

<!--==================== OBJECT ======================================-->
<!--
  OBJECT is used to embed objects as part of HTML pages 
  PARAM elements should precede other content. SGML mixed content
  model technicality precludes specifying this formally ...
-->

<!ELEMENT OBJECT - - (PARAM | %flow;)*
 -- generic embedded object -->
<!ATTLIST OBJECT
  %attrs;                              -- %coreattrs, %i18n, %events --
  declare     (declare)      #IMPLIED  -- declare but don't instantiate flag --
  classid     %URI;          #IMPLIED  -- identifies an implementation --
  codebase    %URI;          #IMPLIED  -- base URI for classid, data, archive--
  data        %URI;          #IMPLIED  -- reference to object's data --
  type        %ContentType;  #IMPLIED  -- content type for data --
  codetype    %ContentType;  #IMPLIED  -- content type for code --
  archive     CDATA          #IMPLIED  -- space-separated list of URIs --
  standby     %Text;         #IMPLIED  -- message to show while loading --
  height      %Length;       #IMPLIED  -- override height --
  width       %Length;       #IMPLIED  -- override width --
  usemap      %URI;          #IMPLIED  -- use client-side image map --
  name        CDATA          #IMPLIED  -- submit as part of form --
  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --
  border      %Pixels;       #IMPLIED  -- link border width --
  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --
  vspace      %Pixels;       #IMPLIED  -- vertical gutter --
  %reserved;                           -- reserved for possible future use --
  >

<!ELEMENT PARAM - O EMPTY              -- named property value -->
<!ATTLIST PARAM
  id          ID             #IMPLIED  -- document-wide unique id --
  name        CDATA          #REQUIRED -- property name --
  value       CDATA          #IMPLIED  -- property value --
  valuetype   (DATA|REF|OBJECT) DATA   -- How to interpret value --
  type        %ContentType;  #IMPLIED  -- content type for value
                                          when valuetype=ref --
  >

<!--=================== Java APPLET ==================================-->
<!--
  One of code or object attributes must be present.
  Place PARAM elements before other content.
-->
<!ELEMENT APPLET - - (PARAM | %flow;)* -- Java applet -->
<!ATTLIST APPLET
  %coreattrs;                          -- id, class, style, title --
  codebase    %URI;          #IMPLIED  -- optional base URI for applet --
  archive     CDATA          #IMPLIED  -- comma-separated archive list --
  code        CDATA          #IMPLIED  -- applet class file --
  object      CDATA          #IMPLIED  -- serialized applet file --
  alt         %Text;         #IMPLIED  -- short description --
  name        CDATA          #IMPLIED  -- allows applets to find each other --
  width       %Length;       #REQUIRED -- initial width --
  height      %Length;       #REQUIRED -- initial height --
  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --
  hspace      %Pixels;       #IMPLIED  -- horizontal gutter --
  vspace      %Pixels;       #IMPLIED  -- vertical gutter --
  >

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

<!ELEMENT HR - O EMPTY -- horizontal rule -->
<!ATTLIST HR
  %attrs;                              -- %coreattrs, %i18n, %events --
  align       (left|center|right) #IMPLIED
  noshade     (noshade)      #IMPLIED
  size        %Pixels;       #IMPLIED
  width       %Length;       #IMPLIED
  >

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

<!ELEMENT P - O (%inline;)*            -- paragraph -->
<!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;)* -- heading -->
<!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|OBJECT|APPLET|BIG|SMALL|SUB|SUP|FONT|BASEFONT">

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

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

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

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

<!ELEMENT BLOCKQUOTE - - (%flow;)*     -- long quotation -->
<!ATTLIST BLOCKQUOTE
  %attrs;                              -- %coreattrs, %i18n, %events --
  cite        %URI;          #IMPLIED  -- URI for source document or msg --
  >

<!--=================== Inserted/Deleted Text ============================-->


<!-- INS/DEL are handled by inclusion on BODY -->
<!ELEMENT (INS|DEL) - - (%flow;)*      -- inserted text, deleted text -->
<!ATTLIST (INS|DEL)
  %attrs;                              -- %coreattrs, %i18n, %events --
  cite        %URI;          #IMPLIED  -- info on reason for change --
  datetime    %Datetime;     #IMPLIED  -- date and time of change --
  >

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

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

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

<!ELEMENT DT - O (%inline;)*           -- definition term -->
<!ELEMENT DD - O (%flow;)*             -- definition description -->
<!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)+                 -- ordered list -->
<!ATTLIST OL
  %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)+                 -- unordered list -->
<!ATTLIST UL
  %attrs;                              -- %coreattrs, %i18n, %events --
  type        %ULStyle;      #IMPLIED  -- bullet style --
  compact     (compact)      #IMPLIED  -- reduced interitem spacing --
  >

<!ELEMENT (DIR|MENU) - - (LI)+ -(%block;) -- directory list, menu list -->
<!ATTLIST DIR
  %attrs;                              -- %coreattrs, %i18n, %events --
  compact     (compact)      #IMPLIED -- reduced interitem spacing --
  >
<!ATTLIST MENU
  %attrs;                              -- %coreattrs, %i18n, %events --
  compact     (compact)      #IMPLIED -- reduced interitem spacing --
  >

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

<!ELEMENT LI - O (%flow;)*             -- list item -->
<!ATTLIST LI
  %attrs;                              -- %coreattrs, %i18n, %events --
  type        %LIStyle;      #IMPLIED  -- list item style --
  value       NUMBER         #IMPLIED  -- reset sequence number --
  >

<!--================ Forms ===============================================-->
<!ELEMENT FORM - - (%flow;)* -(FORM)   -- interactive form -->
<!ATTLIST FORM
  %attrs;                              -- %coreattrs, %i18n, %events --
  action      %URI;          #REQUIRED -- server-side form handler --
  method      (GET|POST)     GET       -- HTTP method used to submit the form--
  enctype     %ContentType;  "application/x-www-form-urlencoded"
  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --
  name        CDATA          #IMPLIED  -- name of form for scripting --
  onsubmit    %Script;       #IMPLIED  -- the form was submitted --
  onreset     %Script;       #IMPLIED  -- the form was reset --
  target      %FrameTarget;  #IMPLIED  -- render in this frame --
  accept-charset %Charsets;  #IMPLIED  -- list of supported charsets --
  >

<!-- Each label must not contain more than ONE field -->
<!ELEMENT LABEL - - (%inline;)* -(LABEL) -- form field label text -->
<!ATTLIST LABEL
  %attrs;                              -- %coreattrs, %i18n, %events --
  for         IDREF          #IMPLIED  -- matches field ID value --
  accesskey   %Character;    #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)"
   >

<!-- attribute name required for all but submit and reset -->
<!ELEMENT INPUT - O EMPTY              -- form control -->
<!ATTLIST INPUT
  %attrs;                              -- %coreattrs, %i18n, %events --
  type        %InputType;    TEXT      -- what kind of widget is needed --
  name        CDATA          #IMPLIED  -- submit as part of form --
  value       CDATA          #IMPLIED  -- Specify for radio buttons and checkboxes --
  checked     (checked)      #IMPLIED  -- for radio buttons and check boxes --
  disabled    (disabled)     #IMPLIED  -- 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         %URI;          #IMPLIED  -- for fields with images --
  alt         CDATA          #IMPLIED  -- short description --
  usemap      %URI;          #IMPLIED  -- use client-side image map --
  ismap       (ismap)        #IMPLIED  -- use server-side image map --
  accesskey   %Character;    #IMPLIED  -- accessibility key character --
  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      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --
  align       %IAlign;       #IMPLIED  -- vertical or horizontal alignment --
  %reserved;                           -- reserved for possible future use --
  >

<!ELEMENT SELECT - - (OPTGROUP|OPTION)+ -- option selector -->
<!ATTLIST SELECT
  %attrs;                              -- %coreattrs, %i18n, %events --
  name        CDATA          #IMPLIED  -- field name --
  size        NUMBER         #IMPLIED  -- rows visible --
  multiple    (multiple)     #IMPLIED  -- default is single selection --
  disabled    (disabled)     #IMPLIED  -- unavailable in this context --
  onfocus     %Script;       #IMPLIED  -- the element got the focus --
  onblur      %Script;       #IMPLIED  -- the element lost the focus --
  onchange    %Script;       #IMPLIED  -- the element value was changed --
  %reserved;                           -- reserved for possible future use --
  >

<!ELEMENT OPTGROUP - - (OPTION)+ -- option group -->
<!ATTLIST OPTGROUP
  %attrs;                              -- %coreattrs, %i18n, %events --
  disabled    (disabled)     #IMPLIED  -- unavailable in this context --
  label       %Text;         #REQUIRED -- for use in hierarchical menus --
  >

<!ELEMENT OPTION - O (#PCDATA)         -- selectable choice -->
<!ATTLIST OPTION
  %attrs;                              -- %coreattrs, %i18n, %events --
  selected    (selected)     #IMPLIED
  disabled    (disabled)     #IMPLIED  -- unavailable in this context --
  label       %Text;         #IMPLIED  -- for use in hierarchical menus --
  value       CDATA          #IMPLIED  -- defaults to element content --
  >

<!ELEMENT TEXTAREA - - (#PCDATA)       -- multi-line text field -->
<!ATTLIST TEXTAREA
  %attrs;                              -- %coreattrs, %i18n, %events --
  name        CDATA          #IMPLIED
  rows        NUMBER         #REQUIRED
  cols        NUMBER         #REQUIRED
  disabled    (disabled)     #IMPLIED  -- unavailable in this context --
  readonly    (readonly)     #IMPLIED
  accesskey   %Character;    #IMPLIED  -- accessibility key character --
  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 --
  %reserved;                           -- reserved for possible future use --
  >

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

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

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

<!ELEMENT BUTTON - -
     (%flow;)* -(A|%formctrl;|FORM|ISINDEX|FIELDSET|IFRAME)
     -- push button -->
<!ATTLIST BUTTON
  %attrs;                              -- %coreattrs, %i18n, %events --
  name        CDATA          #IMPLIED
  value       CDATA          #IMPLIED  -- sent to server when submitted --
  type        (button|submit|reset) submit -- for use as form button --
  disabled    (disabled)     #IMPLIED  -- unavailable in this context --
  accesskey   %Character;    #IMPLIED  -- accessibility key character --
  onfocus     %Script;       #IMPLIED  -- the element got the focus --
  onblur      %Script;       #IMPLIED  -- the element lost the focus --
  %reserved;                           -- reserved for possible future use --
  >

<!--======================= 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       %Character;    #IMPLIED  -- alignment char, e.g. char=':' --
   charoff    %Length;       #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;)*     -- table caption -->
<!ELEMENT THEAD    - O (TR)+           -- table header -->
<!ELEMENT TFOOT    - O (TR)+           -- table footer -->
<!ELEMENT TBODY    O O (TR)+           -- table body -->
<!ELEMENT COLGROUP - O (COL)*          -- table column group -->
<!ELEMENT COL      - O EMPTY           -- table column -->
<!ELEMENT TR       - O (TH|TD)+        -- table row -->
<!ELEMENT (TH|TD)  - O (%flow;)*       -- table header cell, table data cell-->

<!ATTLIST TABLE                        -- table element --
  %attrs;                              -- %coreattrs, %i18n, %events --
  summary     %Text;         #IMPLIED  -- purpose/structure for speech output--
  width       %Length;       #IMPLIED  -- table width --
  border      %Pixels;       #IMPLIED  -- controls frame width around table --
  frame       %TFrame;       #IMPLIED  -- which parts of frame to render --
  rules       %TRules;       #IMPLIED  -- rulings between rows and cols --
  cellspacing %Length;       #IMPLIED  -- spacing between cells --
  cellpadding %Length;       #IMPLIED  -- spacing within cells --
  align       %TAlign;       #IMPLIED  -- table position relative to window --
  bgcolor     %Color;        #IMPLIED  -- background color for cells --
  %reserved;                           -- reserved for possible future use --
  datapagesize CDATA         #IMPLIED  -- reserved for possible future use --
  >

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

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

<!--
COLGROUP groups a set of COL elements. It allows you to group
several semantically related columns together.
-->
<!ATTLIST COLGROUP
  %attrs;                              -- %coreattrs, %i18n, %events --
  span        NUMBER         1         -- default number of columns in group --
  width       %MultiLength;  #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
 one or more 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

 The SPAN attribute causes the attributes of one
 COL element to apply to more than one column.
-->
<!ATTLIST COL                          -- column groups and properties --
  %attrs;                              -- %coreattrs, %i18n, %events --
  span        NUMBER         1         -- COL attributes affect N columns --
  width       %MultiLength;  #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 --
  >


<!-- Scope is simpler than headers attribute for common tables -->
<!ENTITY % Scope "(row|col|rowgroup|colgroup)">

<!-- TH is for headers, TD for data, but for cells acting as both use TD -->
<!ATTLIST (TH|TD)                      -- header or data cell --
  %attrs;                              -- %coreattrs, %i18n, %events --
  abbr        %Text;         #IMPLIED  -- abbreviation for header cell --
  axis        CDATA          #IMPLIED  -- comma-separated list of related headers--
  headers     IDREFS         #IMPLIED  -- list of id's for header cells --
  scope       %Scope;        #IMPLIED  -- scope covered by header cells --
  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 --
  nowrap      (nowrap)       #IMPLIED  -- suppress word wrap --
  bgcolor     %Color;        #IMPLIED  -- cell background color --
  width       %Length;       #IMPLIED  -- width for cell --
  height      %Length;       #IMPLIED  -- height for cell --
  >

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

<!--
  The content model for HTML documents depends on whether the HEAD is
  followed by a FRAMESET or BODY element. The widespread omission of
  the BODY start tag makes it impractical to define the content model
  without the use of a marked section.
-->

<![ %HTML.Frameset; [
<!ELEMENT FRAMESET - - ((FRAMESET|FRAME)+ & NOFRAMES?) -- window subdivision-->
<!ATTLIST FRAMESET
  %coreattrs;                          -- id, class, style, title --
  rows        %MultiLengths; #IMPLIED  -- list of lengths,
                                          default: 100% (1 row) --
  cols        %MultiLengths; #IMPLIED  -- list of lengths,
                                          default: 100% (1 col) --
  onload      %Script;       #IMPLIED  -- all the frames have been loaded  -- 
  onunload    %Script;       #IMPLIED  -- all the frames have been removed -- 
  >
]]>

<![ %HTML.Frameset; [
<!-- reserved frame names start with "_" otherwise starts with letter -->
<!ELEMENT FRAME - O EMPTY              -- subwindow -->
<!ATTLIST FRAME
  %coreattrs;                          -- id, class, style, title --
  longdesc    %URI;          #IMPLIED  -- link to long description
                                          (complements title) --
  name        CDATA          #IMPLIED  -- name of frame for targetting --
  src         %URI;          #IMPLIED  -- source of frame content --
  frameborder (1|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 - - (%flow;)*         -- inline subwindow -->
<!ATTLIST IFRAME
  %coreattrs;                          -- id, class, style, title --
  longdesc    %URI;          #IMPLIED  -- link to long description
                                          (complements title) --
  name        CDATA          #IMPLIED  -- name of frame for targetting --
  src         %URI;          #IMPLIED  -- source of frame content --
  frameborder (1|0)          1         -- 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  -- frame height --
  width       %Length;       #IMPLIED  -- frame width --
  >

<![ %HTML.Frameset; [
<!ENTITY % noframes.content "(BODY) -(NOFRAMES)">
]]>

<!ENTITY % noframes.content "(%flow;)*">

<!ELEMENT NOFRAMES - - %noframes.content;
 -- alternate content container for non frame-based rendering -->
<!ATTLIST NOFRAMES
  %attrs;                              -- %coreattrs, %i18n, %events --
  >

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

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

<!-- 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.
    -->
<!ELEMENT TITLE - - (#PCDATA) -(%head.misc;) -- document title -->
<!ATTLIST TITLE %i18n>

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

<!ELEMENT BASE - O EMPTY               -- document base URI -->
<!ATTLIST BASE
  href        %URI;          #IMPLIED  -- URI that acts as base URI --
  target      %FrameTarget;  #IMPLIED  -- render in this frame --
  >

<!ELEMENT META - O EMPTY               -- generic metainformation -->
<!ATTLIST META
  %i18n;                               -- lang, dir, for use with content --
  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 - - %StyleSheet        -- style info -->
<!ATTLIST STYLE
  %i18n;                               -- lang, dir, for use with title --
  type        %ContentType;  #REQUIRED -- content type of style language --
  media       %MediaDesc;    #IMPLIED  -- designed for use with these media --
  title       %Text;         #IMPLIED  -- advisory title --
  >

<!ELEMENT SCRIPT - - %Script;          -- script statements -->
<!ATTLIST SCRIPT
  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --
  type        %ContentType;  #REQUIRED -- content type of script language --
  language    CDATA          #IMPLIED  -- predefined script language name --
  src         %URI;          #IMPLIED  -- URI for an external script --
  defer       (defer)        #IMPLIED  -- UA may defer execution of script --
  event       CDATA          #IMPLIED  -- reserved for possible future use --
  for         %URI;          #IMPLIED  -- reserved for possible future use --
  >

<!ELEMENT NOSCRIPT - - (%flow;)*
  -- alternate content container for non script-based rendering -->
<!ATTLIST NOSCRIPT
  %attrs;                              -- %coreattrs, %i18n, %events --
  >

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

<![ %HTML.Frameset; [
<!ENTITY % html.content "HEAD, FRAMESET">
]]>

<!ENTITY % html.content "HEAD, BODY">

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