Annotation of html5/spec-author-view/the-script-element.html, revision 1.29

1.14      mike        1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html lang="en-US-x-Hixie"><meta content="text/html; charset=utf-8" http-equiv="Content-Type"><title>4.3.1 The script element &mdash; HTML5 (Edition for Web Authors)</title><meta content="width=device-width;" name="viewport"><link href="whatwg.css" rel="stylesheet"><style type="text/css">
1.1       mike        2:    pre { margin-left: 2em; white-space: pre-wrap; }
                      3:    h2 { margin: 3em 0 1em 0; }
                      4:    h3 { margin: 2.5em 0 1em 0; }
                      5:    h4 { margin: 2.5em 0 0.75em 0; }
                      6:    h5, h6 { margin: 2.5em 0 1em; }
                      7:    h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
                      8:    h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
                      9:    p { margin: 1em 0; }
                     10:    hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
                     11:    dl, dd { margin-top: 0; margin-bottom: 0; }
                     12:    dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
                     13:    dt + dt { margin-top: 0; }
                     14:    dd dt { margin-top: 0.25em; margin-bottom: 0; }
                     15:    dd p { margin-top: 0; }
                     16:    dd dl + p { margin-top: 1em; }
                     17:    dd table + p { margin-top: 1em; }
                     18:    p + * > li, dd li { margin: 1em 0; }
                     19:    dt, dfn { font-weight: bold; font-style: normal; }
                     20:    dt dfn { font-style: italic; }
                     21:    pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
                     22:    pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
                     23:    pre em { font-weight: bolder; font-style: normal; }
                     24:    @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
                     25:    var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
                     26:    table { border-collapse: collapse; border-style: hidden hidden none hidden; }
                     27:    table thead, table tbody { border-bottom: solid; }
                     28:    table tbody th:first-child { border-left: solid; }
                     29:    table tbody th { text-align: left; }
                     30:    table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
                     31:    blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
                     32: 
                     33:    .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
                     34:    .matrix, .matrix td { border: none; text-align: right; }
                     35:    .matrix { margin-left: 2em; }
                     36:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                     37:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                     38:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                     39: 
                     40:    .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
                     41:    img.extra { float: right; }
                     42:    pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; }
                     43:    pre.idl :link, pre.idl :visited { color: inherit; background: transparent; }
                     44:    pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
                     45:    pre.css:first-line { color: #AAAA50; }
                     46:    dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; }
                     47:    hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
                     48:    dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
                     49:    dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
                     50:    dl.domintro dd p { margin: 0.5em 0; }
                     51:    dl.switch { padding-left: 2em; }
                     52:    dl.switch > dt { text-indent: -1.5em; }
                     53:    dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
                     54:    dl.triple { padding: 0 0 0 1em; }
                     55:    dl.triple dt, dl.triple dd { margin: 0; display: inline }
                     56:    dl.triple dt:after { content: ':'; }
                     57:    dl.triple dd:after { content: '\A'; white-space: pre; }
                     58:    .diff-old { text-decoration: line-through; color: silver; background: transparent; }
                     59:    .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
                     60:    a .diff-new { border-bottom: 1px blue solid; }
                     61: 
                     62:    h2 { page-break-before: always; }
                     63:    h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
                     64:    h1 + h2, hr + h2.no-toc { page-break-before: auto; }
                     65: 
                     66:    p  > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]),
                     67:    li > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]), { border-bottom: solid #9999CC; }
                     68: 
                     69:    div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
                     70:    div.head p { margin: 0; }
                     71:    div.head h1 { margin: 0; }
                     72:    div.head .logo { float: right; margin: 0 1em; }
                     73:    div.head .logo img { border: none } /* remove border from top image */
                     74:    div.head dl { margin: 1em 0; }
                     75:    div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
                     76: 
                     77:    body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
                     78:    body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
                     79:    body > .toc > li > * { margin-bottom: 0.5em; }
                     80:    body > .toc > li > * > li > * { margin-bottom: 0.25em; }
                     81:    .toc, .toc li { list-style: none; }
                     82: 
                     83:    .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
                     84:    .brief li { margin: 0; padding: 0; }
                     85:    .brief li p { margin: 0; padding: 0; }
                     86: 
                     87:    .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
                     88:    .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
                     89:    .category-list li { display: inline; }
                     90:    .category-list li:not(:last-child)::after { content: ', '; }
                     91:    .category-list li > span, .category-list li > a { text-transform: lowercase; }
                     92:    .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
                     93: 
                     94:    .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
                     95:    .XXX > :first-child { margin-top: 0; }
                     96:    p .XXX { line-height: 3em; }
                     97:    .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
                     98:    .annotation:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; margin: 6px -6px -6px 6px; background: #333333; z-index: -1; content: ''; }
                     99:    .annotation :link, .annotation :visited { color: inherit; }
                    100:    .annotation :link:hover, .annotation :visited:hover { background: transparent; }
                    101:    .annotation span { border: none ! important; }
                    102:    .note { color: green; background: transparent; font-family: sans-serif; }
                    103:    .warning { color: red; background: transparent; }
                    104:    .note, .warning { font-weight: bolder; font-style: italic; }
                    105:    p.note, div.note { padding: 0.5em 2em; }
                    106:    span.note { padding: 0 2em; }
                    107:    .note p:first-child, .warning p:first-child { margin-top: 0; }
                    108:    .note p:last-child, .warning p:last-child { margin-bottom: 0; }
                    109:    .warning:before { font-style: normal; }
                    110:    p.note:before { content: 'Note: '; }
                    111:    p.warning:before { content: '\26A0 Warning! '; }
                    112: 
                    113:    .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
                    114:    .bookkeeping { font-size: 0.8em; margin: 2em 0; }
                    115:    .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
                    116:    .bookkeeping dt { margin: 0.5em 2em 0; }
                    117:    .bookkeeping dd { margin: 0 3em 0.5em; }
                    118: 
                    119:    h4 { position: relative; z-index: 3; }
                    120:    h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
                    121:    .element {
                    122:      background: #EEEEFF;
                    123:      color: black;
                    124:      margin: 0 0 1em 0.15em;
                    125:      padding: 0 1em 0.25em 0.75em;
                    126:      border-left: solid #9999FF 0.25em;
                    127:      position: relative;
                    128:      z-index: 1;
                    129:    }
                    130:    .element:before {
                    131:      position: absolute;
                    132:      z-index: 2;
                    133:      top: 0;
                    134:      left: -1.15em;
                    135:      height: 2em;
                    136:      width: 0.9em;
                    137:      background: #EEEEFF;
                    138:      content: ' ';
                    139:      border-style: none none solid solid;
                    140:      border-color: #9999FF;
                    141:      border-width: 0.25em;
                    142:    }
                    143: 
                    144:    .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
                    145:    td > .example:only-child { margin: 0 0 0 0.1em; }
                    146: 
                    147:    ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
                    148:    ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
                    149:    ul.domTree li li { list-style: none; }
                    150:    ul.domTree li:first-child::before { position: absolute; top: 0; height: 0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
                    151:    ul.domTree li:not(:last-child)::after { position: absolute; top: 0; bottom: -0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
                    152:    ul.domTree span { font-style: italic; font-family: serif; }
                    153:    ul.domTree .t1 code { color: purple; font-weight: bold; }
                    154:    ul.domTree .t2 { font-style: normal; font-family: monospace; }
                    155:    ul.domTree .t2 .name { color: black; font-weight: bold; }
                    156:    ul.domTree .t2 .value { color: blue; font-weight: normal; }
                    157:    ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
                    158:    ul.domTree .t7 code, .domTree .t8 code { color: green; }
                    159:    ul.domTree .t10 code { color: teal; }
                    160: 
                    161:    body.dfnEnabled dfn { cursor: pointer; }
                    162:    .dfnPanel {
                    163:      display: inline;
                    164:      position: absolute;
                    165:      z-index: 10;
                    166:      height: auto;
                    167:      width: auto;
                    168:      padding: 0.5em 0.75em;
                    169:      font: small sans-serif, Droid Sans Fallback;
                    170:      background: #DDDDDD;
                    171:      color: black;
                    172:      border: outset 0.2em;
                    173:    }
                    174:    .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
                    175:    .dfnPanel :link, .dfnPanel :visited { color: black; }
                    176:    .dfnPanel p { font-weight: bolder; }
                    177:    .dfnPanel * + p { margin-top: 0.25em; }
                    178:    .dfnPanel li { list-style-position: inside; }
                    179: 
                    180:    #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
                    181:    #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
                    182:    #configUI p label { display: block; }
                    183:    #configUI #updateUI, #configUI .loginUI { text-align: center; }
                    184:    #configUI input[type=button] { display: block; margin: auto; }
                    185: 
                    186:    fieldset { margin: 1em; padding: 0.5em 1em; }
                    187:    fieldset > legend + * { margin-top: 0; }
                    188:    fieldset > :last-child { margin-bottom: 0; }
                    189:    fieldset p { margin: 0.5em 0; }
                    190: 
1.22      mike      191:    .stability {
                    192:      position: fixed;
                    193:      bottom: 0;
                    194:      left: 0; right: 0;
                    195:      margin: 0 auto 0 auto;
                    196:      width: 50%;
                    197:      background: maroon; color: yellow;
                    198:      -webkit-border-radius: 1em 1em 0 0;
                    199:      -moz-border-radius: 1em 1em 0 0;
                    200:      border-radius: 1em 1em 0 0;
                    201:      -moz-box-shadow: 0 0 1em #500;
                    202:      -webkit-box-shadow: 0 0 1em #500;
                    203:      box-shadow: 0 0 1em red;
                    204:      padding: 0.5em 1em;
                    205:      text-align: center;
                    206:    }
                    207:    .stability strong {
                    208:      display: block;
                    209:    }
                    210:    .stability input {
                    211:      appearance: none; margin: 0; border: 0; padding: 0.25em 0.5em; background: transparent; color: black;
                    212:      position: absolute; top: -0.5em; right: 0; font: 1.25em sans-serif; text-align: center;
                    213:    }
                    214:    .stability input:hover {
                    215:      color: white;
                    216:      text-shadow: 0 0 2px black;
                    217:    }
                    218:    .stability input:active {
                    219:      padding: 0.3em 0.45em 0.2em 0.55em;
                    220:    }
                    221:    .stability :link, .stability :visited,
                    222:    .stability :link:hover, .stability :visited:hover {
                    223:      background: transparent;
                    224:      color: white;
                    225:    }
                    226: 
                    227:   </style><link href="http://www.w3.org/StyleSheets/TR/W3C-LC" rel="stylesheet" type="text/css"><link href="style.css" rel="stylesheet"><script src="link-fixup.js" type="text/javascript"></script><style type="text/css">
1.1       mike      228: 
                    229:    .applies thead th > * { display: block; }
                    230:    .applies thead code { display: block; }
                    231:    .applies tbody th { whitespace: nowrap; }
                    232:    .applies td { text-align: center; }
                    233:    .applies .yes { background: yellow; }
                    234: 
                    235:    .matrix, .matrix td { border: hidden; text-align: right; }
                    236:    .matrix { margin-left: 2em; }
                    237: 
                    238:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                    239:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                    240:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                    241: 
                    242:    td.eg { border-width: thin; text-align: center; }
                    243: 
                    244:    #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
                    245:    #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
                    246:    #table-example-1 caption { padding-bottom: 0.5em; }
                    247:    #table-example-1 thead, #table-example-1 tbody { border: none; }
                    248:    #table-example-1 th, #table-example-1 td { border: solid thin; }
                    249:    #table-example-1 th { font-weight: normal; }
                    250:    #table-example-1 td { border-style: none solid; vertical-align: top; }
                    251:    #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
                    252:    #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
                    253:    #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
                    254:    #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
                    255:    #table-example-1 tbody td:first-child::after { content: leader(". "); }
                    256:    #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
                    257:    #table-example-1 tbody td:first-child + td { width: 10em; }
                    258:    #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
                    259:    #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
                    260: 
                    261:    .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
                    262:    .apple-table-examples * { font-family: "Times", serif; }
                    263:    .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
                    264:    .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
                    265:    .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
                    266:    .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
                    267:    .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
                    268:    .apple-table-examples td { text-align: right; vertical-align: top; }
                    269:    .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
                    270:    .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
                    271:    .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
                    272:    .apple-table-examples sup { line-height: 0; }
                    273: 
                    274:    .details-example img { vertical-align: top; }
                    275: 
                    276:    #base64-table {
                    277:      white-space: nowrap;
                    278:      font-size: 0.6em;
                    279:      column-width: 6em;
                    280:      column-count: 5;
                    281:      column-gap: 1em;
                    282:      -moz-column-width: 6em;
                    283:      -moz-column-count: 5;
                    284:      -moz-column-gap: 1em;
                    285:      -webkit-column-width: 6em;
                    286:      -webkit-column-count: 5;
                    287:      -webkit-column-gap: 1em;
                    288:    }
                    289:    #base64-table thead { display: none; }
                    290:    #base64-table * { border: none; }
                    291:    #base64-table tbody td:first-child:after { content: ':'; }
                    292:    #base64-table tbody td:last-child { text-align: right; }
                    293: 
                    294:    #named-character-references-table {
                    295:      white-space: nowrap;
                    296:      font-size: 0.6em;
                    297:      column-width: 30em;
                    298:      column-gap: 1em;
                    299:      -moz-column-width: 30em;
                    300:      -moz-column-gap: 1em;
                    301:      -webkit-column-width: 30em;
                    302:      -webkit-column-gap: 1em;
                    303:    }
                    304:    #named-character-references-table > table > tbody > tr > td:first-child + td,
                    305:    #named-character-references-table > table > tbody > tr > td:last-child { text-align: center; }
                    306:    #named-character-references-table > table > tbody > tr > td:last-child:hover > span { position: absolute; top: auto; left: auto; margin-left: 0.5em; line-height: 1.2; font-size: 5em; border: outset; padding: 0.25em 0.5em; background: white; width: 1.25em; height: auto; text-align: center; }
                    307:    #named-character-references-table > table > tbody > tr#entity-CounterClockwiseContourIntegral > td:first-child { font-size: 0.5em; }
                    308: 
                    309:    .glyph.control { color: red; }
                    310: 
                    311:    @font-face {
                    312:      font-family: 'Essays1743';
                    313:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743.ttf');
                    314:    }
                    315:    @font-face {
                    316:      font-family: 'Essays1743';
                    317:      font-weight: bold;
                    318:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Bold.ttf');
                    319:    }
                    320:    @font-face {
                    321:      font-family: 'Essays1743';
                    322:      font-style: italic;
                    323:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Italic.ttf');
                    324:    }
                    325:    @font-face {
                    326:      font-family: 'Essays1743';
                    327:      font-style: italic;
                    328:      font-weight: bold;
                    329:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-BoldItalic.ttf');
                    330:    }
                    331: 
                    332:   </style><script type="text/javascript">
                    333:  function getCookie(name) {
                    334:    var params = location.search.substr(1).split("&");
                    335:    for (var index = 0; index < params.length; index++) {
                    336:      if (params[index] == name)
                    337:        return "1";
                    338:      var data = params[index].split("=");
                    339:      if (data[0] == name)
                    340:        return unescape(data[1]);
                    341:    }
                    342:    var cookies = document.cookie.split("; ");
                    343:    for (var index = 0; index < cookies.length; index++) {
                    344:      var data = cookies[index].split("=");
                    345:      if (data[0] == name)
                    346:        return unescape(data[1]);
                    347:    }
                    348:    return null;
                    349:  }
                    350:  function load(script) {
                    351:    var e = document.createElement('script');
                    352:    e.setAttribute('src', script + '?' + encodeURIComponent(location) + '&' + encodeURIComponent(document.referrer));
                    353:    document.body.appendChild(e);
                    354:  }
                    355:  function init() {
                    356:    if (location.search == '?slow-browser')
                    357:      return;
                    358:    var configUI = document.createElement('div');
                    359:    configUI.id = 'configUI';
                    360:    document.body.appendChild(configUI);
                    361:    if (document.getElementById('head'))
                    362:      load('toc.js');
                    363:    load('dfn.js');
                    364:    if (getCookie('profile') == '1')
                    365:      document.getElementsByTagName('h2')[0].textContent += '; load: ' + (new Date() - loadTimer) + 'ms';
                    366:    fixBrokenLink();
                    367:  }
1.18      mike      368: </script><script src="dfn.js" type="text/javascript"></script><link href="scripting-1.html" rel="prev" title="4.3 Scripting">
1.1       mike      369:   <link href="Overview.html#contents" rel="index" title="Table of contents">
                    370:   <link href="the-noscript-element.html" rel="next" title="4.3.2 The noscript element">
1.16      mike      371:   <body class="split chapter"><div class="head" id="head">
1.9       mike      372: <div aria-haspopup="true" id="jumpIndexA-button" role="button" tabindex="0">jump
1.20      mike      373: <div id="jumpIndexA"><ul><li><a class="noindex" href="the-a-element.html#the-a-element">a</a><a class="noindex" href="the-abbr-element.html#the-abbr-element">abbr</a><a class="noindex" href="the-address-element.html#the-address-element">address</a><a class="noindex" href="the-area-element.html#the-area-element">area</a><a class="noindex" href="the-article-element.html#the-article-element">article</a><a class="noindex" href="the-aside-element.html#the-aside-element">aside</a><a class="noindex" href="the-audio-element.html#the-audio-element">audio</a></ul><ul><li><a class="noindex" href="the-b-element.html#the-b-element">b</a><a class="noindex" href="the-base-element.html#the-base-element">base</a><a class="noindex" href="the-bdi-element.html#the-bdi-element">bdi</a><a class="noindex" href="the-bdo-element.html#the-bdo-element">bdo</a><a class="noindex" href="the-blockquote-element.html#the-blockquote-element">blockquote</a><a class="noindex" href="the-body-element.html#the-body-element">body</a><a class="noindex" href="the-br-element.html#the-br-element">br</a><a class="noindex" href="the-button-element.html#the-button-element">button</a></ul><ul><li><a class="noindex" href="the-canvas-element.html#the-canvas-element">canvas</a><a class="noindex" href="the-caption-element.html#the-caption-element">caption</a><a class="noindex" href="the-cite-element.html#the-cite-element">cite</a><a class="noindex" href="the-code-element.html#the-code-element">code</a><a class="noindex" href="the-col-element.html#the-col-element">col</a><a class="noindex" href="the-colgroup-element.html#the-colgroup-element">colgroup</a><a class="noindex" href="the-command-element.html#the-command-element">command</a></ul><ul><li><a class="noindex" href="the-datalist-element.html#the-datalist-element">datalist</a><a class="noindex" href="the-dd-element.html#the-dd-element">dd</a><a class="noindex" href="the-del-element.html#the-del-element">del</a><a class="noindex" href="the-details-element.html#the-details-element">details</a><a class="noindex" href="the-dfn-element.html#the-dfn-element">dfn</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/.html#the-dir-element" title='Read about this "dir" reference in the full HTML5 spec.'>dir</a><a class="noindex" href="the-div-element.html#the-div-element">div</a><a class="noindex" href="the-dl-element.html#the-dl-element">dl</a><a class="noindex" href="the-dt-element.html#the-dt-element">dt</a></ul><ul><li><a class="noindex" href="the-em-element.html#the-em-element">em</a><a class="noindex" href="the-embed-element.html#the-embed-element">embed</a><a class="noindex" href="the-fieldset-element.html#the-fieldset-element">fieldset</a><a class="noindex" href="the-figcaption-element.html#the-figcaption-element">figcaption</a><a class="noindex" href="the-figure-element.html#the-figure-element">figure</a><a class="noindex" href="the-footer-element.html#the-footer-element">footer</a><a class="noindex" href="the-form-element.html#the-form-element">form</a></ul><ul><li><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h1-element" title='Read about this "h1" reference in the full HTML5 spec.'>h1</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h2-element" title='Read about this "h2" reference in the full HTML5 spec.'>h2</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h3-element" title='Read about this "h3" reference in the full HTML5 spec.'>h3</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h4-element" title='Read about this "h4" reference in the full HTML5 spec.'>h4</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h5-element" title='Read about this "h5" reference in the full HTML5 spec.'>h5</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/sections.html#the-h6-element" title='Read about this "h6" reference in the full HTML5 spec.'>h6</a><a class="noindex" href="the-head-element.html#the-head-element">head</a><a class="noindex" href="the-header-element.html#the-header-element">header</a><a class="noindex" href="the-hgroup-element.html#the-hgroup-element">hgroup</a><a class="noindex" href="the-hr-element.html#the-hr-element">hr</a><a class="noindex" href="the-html-element.html#the-html-element">html</a></ul><ul><li><a class="noindex" href="the-i-element.html#the-i-element">i</a><a class="noindex" href="the-iframe-element.html#the-iframe-element">iframe</a><a class="noindex" href="the-img-element.html#the-img-element">img</a><a class="noindex" href="the-input-element.html#the-input-element">input</a><a class="noindex" href="the-ins-element.html#the-ins-element">ins</a><a class="noindex" href="the-kbd-element.html#the-kbd-element">kbd</a><a class="noindex" href="the-keygen-element.html#the-keygen-element">keygen</a></ul><ul><li><a class="noindex" href="the-label-element.html#the-label-element">label</a><a class="noindex" href="the-legend-element.html#the-legend-element">legend</a><a class="noindex" href="the-li-element.html#the-li-element">li</a><a class="noindex" href="the-link-element.html#the-link-element">link</a><a class="noindex" href="the-map-element.html#the-map-element">map</a><a class="noindex" href="the-mark-element.html#the-mark-element">mark</a><a class="noindex" href="the-menu-element.html#the-menu-element">menu</a><a class="noindex" href="the-meta-element.html#the-meta-element">meta</a><a class="noindex" href="the-meter-element.html#the-meter-element">meter</a></ul><ul><li><a class="noindex" href="the-nav-element.html#the-nav-element">nav</a><a class="noindex" href="the-noscript-element.html#the-noscript-element">noscript</a><a class="noindex" href="the-object-element.html#the-object-element">object</a><a class="noindex" href="the-ol-element.html#the-ol-element">ol</a><a class="noindex" href="the-optgroup-element.html#the-optgroup-element">optgroup</a><a class="noindex" href="the-option-element.html#the-option-element">option</a><a class="noindex" href="the-output-element.html#the-output-element">output</a></ul><ul><li><a class="noindex" href="the-p-element.html#the-p-element">p</a><a class="noindex" href="the-param-element.html#the-param-element">param</a><a class="noindex" href="the-pre-element.html#the-pre-element">pre</a><a class="noindex" href="the-progress-element.html#the-progress-element">progress</a><a class="noindex" href="the-q-element.html#the-q-element">q</a><a class="noindex" href="the-rp-element.html#the-rp-element">rp</a><a class="noindex" href="the-rt-element.html#the-rt-element">rt</a><a class="noindex" href="the-ruby-element.html#the-ruby-element">ruby</a></ul><ul><li><a class="noindex" href="the-s-element.html#the-s-element">s</a><a class="noindex" href="the-samp-element.html#the-samp-element">samp</a><a class="noindex" href="#the-script-element">script</a><a class="noindex" href="the-section-element.html#the-section-element">section</a><a class="noindex" href="the-select-element.html#the-select-element">select</a><a class="noindex" href="the-small-element.html#the-small-element">small</a><a class="noindex" href="the-source-element.html#the-source-element">source</a><a class="noindex" href="the-span-element.html#the-span-element">span</a></ul><ul><li><a class="noindex" href="the-strong-element.html#the-strong-element">strong</a><a class="noindex" href="the-style-element.html#the-style-element">style</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/text-level-semantics.html#the-sub-element" title='Read about this "sub" reference in the full HTML5 spec.'>sub</a><a class="noindex" href="the-summary-element.html#the-summary-element">summary</a><a class="full-spec-link" href="http://dev.w3.org/html5/spec/text-level-semantics.html#the-sup-element" title='Read about this "sup" reference in the full HTML5 spec.'>sup</a></ul><ul><li><a class="noindex" href="the-table-element.html#the-table-element">table</a><a class="noindex" href="the-tbody-element.html#the-tbody-element">tbody</a><a class="noindex" href="the-td-element.html#the-td-element">td</a><a class="noindex" href="the-textarea-element.html#the-textarea-element">textarea</a><a class="noindex" href="the-tfoot-element.html#the-tfoot-element">tfoot</a><a class="noindex" href="the-th-element.html#the-th-element">th</a><a class="noindex" href="the-thead-element.html#the-thead-element">thead</a><a class="noindex" href="the-time-element.html#the-time-element">time</a><a class="noindex" href="the-title-element.html#the-title-element">title</a></ul><ul><li><a class="noindex" href="the-tr-element.html#the-tr-element">tr</a><a class="noindex" href="the-track-element.html#the-track-element">track</a><a class="noindex" href="the-u-element.html#the-u-element">u</a><a class="noindex" href="the-ul-element.html#the-ul-element">ul</a><a class="noindex" href="the-var-element.html#the-var-element">var</a><a class="noindex" href="the-video-element.html#the-video-element">video</a><a class="noindex" href="the-wbr-element.html#the-wbr-element">wbr</a></ul><ul class="jumpIndexA-other"><li><a class="noindex" href="global-attributes.html#global-attributes">global attributes</a><a class="noindex" href="index-of-terms.html#index-of-terms">terms</a></ul></div></div>
1.11      mike      374: <script src="jump-indexes.js"></script><p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
1.1       mike      375: 
1.29    ! mike      376:    <h1>HTML5 <span class="edition">Edition for Web Authors</span> <span class="rcsrevision">revision 1.4938</span></h1>
1.11      mike      377:    
                    378:    </div><div class="prev_next">
1.1       mike      379:    <a href="scripting-1.html">&larr; 4.3 Scripting</a> &ndash;
                    380:    <a href="Overview.html#contents">Table of contents</a> &ndash;
                    381:    <a href="the-noscript-element.html">4.3.2 The noscript element &rarr;</a>
                    382:   <ol class="toc"><li><ol><li><ol><li><a href="the-script-element.html#the-script-element" id="x4.3.1-the-script-element"><span class="secno">4.3.1 </span>The <code>script</code> element</a>
                    383:       <ol><li><a href="the-script-element.html#scriptingLanguages"><span class="secno">4.3.1.1 </span>Scripting languages</a><li><a href="the-script-element.html#restrictions-for-contents-of-script-elements" id="x4.3.1.2-restrictions-for-contents-of-script-elements"><span class="secno">4.3.1.2 </span>Restrictions for contents of <code>script</code> elements</a><li><a href="the-script-element.html#inline-documentation-for-external-scripts" id="x4.3.1.3-inline-documentation-for-external-scripts"><span class="secno">4.3.1.3 </span>Inline documentation for external scripts</a></ol></ol></ol></ol></div>
                    384: 
                    385:   <h4 id="the-script-element"><span class="secno">4.3.1 </span>The <dfn aria-haspopup="true" role="button" tabindex="0"><code>script</code></dfn> element</h4><dl class="element"><dt>Categories</dt>
                    386:    <dd><a href="content-models.html#metadata-content" id="metadata-content_12">Metadata content</a>.</dd>
                    387:    <dd><a href="content-models.html#flow-content" id="flow-content_11">Flow content</a>.</dd>
                    388:    <dd><a href="content-models.html#phrasing-content" id="phrasing-content_18">Phrasing content</a>.</dd>
                    389:    <dt>Contexts in which this element can be used:</dt>
                    390:    <dd>Where <a href="content-models.html#metadata-content" id="metadata-content_13">metadata content</a> is expected.</dd>
                    391:    <dd>Where <a href="content-models.html#phrasing-content" id="phrasing-content_19">phrasing content</a> is expected.</dd>
                    392:    <dt>Content model:</dt>
                    393:    <dd>If there is no <code title="attr-script-src"><a href="#attr-script-src" id="src_1">src</a></code>
                    394:    attribute, depends on the value of the <code title="attr-script-type"><a href="#attr-script-type" id="type_6">type</a></code> attribute, but must match
                    395:    <a href="#restrictions-for-contents-of-script-elements" id="script-content-restrictions">script content restrictions</a>.</dd>
                    396:    <dd>If there <em>is</em> a <code title="attr-script-src"><a href="#attr-script-src" id="src_2">src</a></code>
                    397:    attribute, the element must be either empty or contain only
                    398:    <a href="#inline-documentation-for-external-scripts" id="script-documentation">script documentation</a> that also matches <a href="#restrictions-for-contents-of-script-elements" id="script-content-restrictions_0">script
                    399:    content restrictions</a>.</dd>
                    400:    <dt>Content attributes:</dt>
1.6       mike      401:    <dd><a href="global-attributes.html#global-attributes" id="global-attributes_7">Global attributes</a></dd>
1.1       mike      402:    <dd><code title="attr-script-src"><a href="#attr-script-src" id="src_3">src</a></code></dd>
                    403:    <dd><code title="attr-script-async"><a href="#attr-script-async" id="async">async</a></code></dd>
                    404:    <dd><code title="attr-script-defer"><a href="#attr-script-defer" id="defer">defer</a></code></dd>
                    405:    <dd><code title="attr-script-type"><a href="#attr-script-type" id="type_7">type</a></code></dd>
                    406:    <dd><code title="attr-script-charset"><a href="#attr-script-charset" id="charset_10">charset</a></code></dd>
                    407:    <dt>DOM interface:</dt>
                    408:    <dd>
                    409: <pre class="idl">interface <dfn aria-haspopup="true" id="htmlscriptelement" role="button" tabindex="0">HTMLScriptElement</dfn> : <a href="elements.html#htmlelement" id="htmlelement_14">HTMLElement</a> {
                    410:            attribute DOMString <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-src" title='Read about this "src" reference in the full HTML5 spec.'>src</a>;
                    411:            attribute boolean <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-async" title='Read about this "async" reference in the full HTML5 spec.'>async</a>;
                    412:            attribute boolean <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-defer" title='Read about this "defer" reference in the full HTML5 spec.'>defer</a>;
                    413:            attribute DOMString <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-type" title='Read about this "type" reference in the full HTML5 spec.'>type</a>;
                    414:            attribute DOMString <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-charset" title='Read about this "charset" reference in the full HTML5 spec.'>charset</a>;
                    415:            attribute DOMString <a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-text" title='Read about this "text" reference in the full HTML5 spec.'>text</a>;
                    416: };</pre>
                    417:    </dd>
                    418:   </dl><p>The <code><a href="#the-script-element" id="script_14">script</a></code> element allows authors to include dynamic
                    419:   script and data blocks in their documents. The element does not
                    420:   <a class="full-spec-link" href="http://dev.w3.org/html5/spec/rendering.html#represents" title='Read about this "represent" reference in the full HTML5 spec.'>represent</a> content for the user.<p>When used to include dynamic scripts, the scripts may either be
                    421:   embedded inline or may be imported from an external file using the
                    422:   <code title="attr-script-src"><a href="#attr-script-src" id="src_4">src</a></code> attribute. If the language
                    423:   is not that described by "<code title="">text/javascript</code>",
                    424:   then the <code title="attr-script-type"><a href="#attr-script-type" id="type_8">type</a></code> attribute must
                    425:   be present, as described below. Whatever language is used, the
                    426:   contents of the <code><a href="#the-script-element" id="script_15">script</a></code> element must conform with the
                    427:   requirements of that language's specification.<p>When used to include data blocks (as opposed to scripts), the
                    428:   data must be embedded inline, the format of the data must be given
                    429:   using the <code title="attr-script-type"><a href="#attr-script-type" id="type_9">type</a></code> attribute, the
                    430:   <code title="attr-script-src"><a href="#attr-script-src" id="src_5">src</a></code> attribute must not be
                    431:   specified, and the contents of the <code><a href="#the-script-element" id="script_16">script</a></code> element must
                    432:   conform to the requirements defined for the format used.<p>The <dfn aria-haspopup="true" id="attr-script-type" role="button" tabindex="0"><code>type</code></dfn>
                    433:   attribute gives the language of the script or format of the data. If
                    434:   the attribute is present, its value must be a <a href="infrastructure.html#valid-mime-type" id="valid-mime-type_3">valid MIME
                    435:   type</a>. The <code title="">charset</code> parameter must not be
                    436:   specified. The default, which is used if the attribute is absent,
                    437:   is "<code title="">text/javascript</code>".<p>The <dfn aria-haspopup="true" id="attr-script-src" role="button" tabindex="0"><code>src</code></dfn>
                    438:   attribute, if specified, gives the address of the external script
                    439:   resource to use. The value of the attribute must be a <a href="urls.html#valid-non-empty-url-potentially-surrounded-by-spaces" id="valid-non-empty-url-potentially-surrounded-by-spaces_2">valid
                    440:   non-empty URL potentially surrounded by spaces</a> identifying a
                    441:   script resource of the type given by the <code title="attr-script-type"><a href="#attr-script-type" id="type_10">type</a></code> attribute, if the attribute is
                    442:   present, or of the type "<code title="">text/javascript</code>", if
                    443:   the attribute is absent. A resource is a script resource of a given
                    444:   type if that type identifies a scripting language and the resource
                    445:   conforms with the requirements of that language's specification.<p>The <dfn aria-haspopup="true" id="attr-script-charset" role="button" tabindex="0"><code>charset</code></dfn>
                    446:   attribute gives the character encoding of the external script
                    447:   resource. The attribute must not be specified if the <code title="attr-script-src"><a href="#attr-script-src" id="src_6">src</a></code> attribute is not present. If the
                    448:   attribute is set, its value must be a valid character encoding name,
                    449:   must be an <a href="infrastructure.html#ascii-case-insensitive" id="ascii-case-insensitive_10">ASCII case-insensitive</a> match for the
                    450:   <a href="infrastructure.html#preferred-mime-name" id="preferred-mime-name_1">preferred MIME name</a> for that encoding, and must match
                    451:   the encoding given in the <code title="">charset</code> parameter of
                    452:   the <a class="full-spec-link" href="http://dev.w3.org/html5/spec/fetching-resources.html#content-type" title='Read about this "Content-Type metadata" reference in the full HTML5 spec.'>Content-Type metadata</a> of the
                    453:   external file, if any. <a href="references.html#refsIANACHARSET">[IANACHARSET]</a><p>The <dfn aria-haspopup="true" id="attr-script-async" role="button" tabindex="0"><code>async</code></dfn> and
                    454:   <dfn aria-haspopup="true" id="attr-script-defer" role="button" tabindex="0"><code>defer</code></dfn> attributes
                    455:   are <a href="common-microsyntaxes.html#boolean-attribute" id="boolean-attribute_1" title="boolean attribute">boolean attributes</a> that
                    456:   indicate how the script should be executed. The <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_0">defer</a></code> and <code title="attr-script-async"><a href="#attr-script-async" id="async_0">async</a></code> attributes must not be
                    457:   specified if the <code title="attr-script-src"><a href="#attr-script-src" id="src_7">src</a></code> attribute
                    458:   is not present.<p>There are three possible modes that can be selected using these
                    459:   attributes. If the <code title="attr-script-async"><a href="#attr-script-async" id="async_1">async</a></code>
                    460:   attribute is present, then the script will be executed
                    461:   asynchronously, as soon as it is available. If the <code title="attr-script-async"><a href="#attr-script-async" id="async_2">async</a></code> attribute is not present but
                    462:   the <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_1">defer</a></code> attribute is
                    463:   present, then the script is executed when the page has finished
                    464:   parsing. If neither attribute is present, then the script is
                    465:   fetched and executed immediately, before the user agent continues
                    466:   parsing the page.<p class="note">The exact processing details for these attributes
                    467:   are, for mostly historical reasons, somewhat non-trivial, involving
                    468:   a number of aspects of HTML. The implementation requirements are
                    469:   therefore by necessity scattered throughout the specification. The
                    470:   algorithms below (in this section) describe the core of this
                    471:   processing, but these algorithms reference and are referenced by the
                    472:   parsing rules for <code><a href="#the-script-element" id="script_17">script</a></code> <a class="full-spec-link" href="http://dev.w3.org/html5/spec/tree-construction.html#scriptTag" title='Read about this "start" reference in the full HTML5 spec.'>start</a>
                    473:   and <a class="full-spec-link" href="http://dev.w3.org/html5/spec/tree-construction.html#scriptEndTag" title='Read about this "end" reference in the full HTML5 spec.'>end</a> tags in HTML, <a class="full-spec-link" href="http://dev.w3.org/html5/spec/tree-construction.html#scriptForeignEndTag" title='Read about this "in foreign content" reference in the full HTML5 spec.'>in foreign content</a>, and <a class="full-spec-link" href="http://dev.w3.org/html5/spec/the-xhtml-syntax.html#scriptTagXML" title='Read about this "in XML" reference in the full HTML5 spec.'>in XML</a>, the rules for the <code title="dom-document-write"><a class="full-spec-link" href="http://dev.w3.org/html5/spec/apis-in-html-documents.html#dom-document-write" title='Read about this "document.write()" reference in the full HTML5 spec.'>document.write()</a></code> method, the
                    474:   handling of <a href="webappapis.html#scripting">scripting</a>, etc.<p>The <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_2">defer</a></code> attribute may be
                    475:   specified even if the <code title="attr-script-async"><a href="#attr-script-async" id="async_3">async</a></code>
                    476:   attribute is specified, to cause legacy Web browsers that only
                    477:   support <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_3">defer</a></code> (and not <code title="attr-script-async"><a href="#attr-script-async" id="async_4">async</a></code>) to fall back to the <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_4">defer</a></code> behavior instead of the
                    478:   synchronous blocking behavior that is the default.<p>Changing the <code title="attr-script-src"><a href="#attr-script-src" id="src_8">src</a></code>, <code title="attr-script-type"><a href="#attr-script-type" id="type_11">type</a></code>, <code title="attr-script-charset"><a href="#attr-script-charset" id="charset_11">charset</a></code>, <code title="attr-script-async"><a href="#attr-script-async" id="async_5">async</a></code>, and <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_5">defer</a></code> attributes dynamically has no
                    479:   direct effect; these attribute are only used at specific times
                    480:   described below.<dl class="domintro"><dt><var title="">script</var> . <code title="dom-script-text"><a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-text" title='Read about this "text" reference in the full HTML5 spec.'>text</a></code> [ = <var title="">value</var> ]</dt>
                    481: 
                    482:    <dd>
                    483: 
                    484:     <p>Returns the contents of the element, ignoring child nodes that
                    485:     aren't <a href="infrastructure.html#text-node" id="text-node_11" title="text node">text nodes</a>.</p>
                    486: 
                    487:     <p>Can be set, to replace the element's children with the given
                    488:     value.</p>
                    489: 
                    490:    </dd>
                    491: 
                    492:   </dl><p class="note">When inserted using the <code title="dom-document-write"><a class="full-spec-link" href="http://dev.w3.org/html5/spec/apis-in-html-documents.html#dom-document-write" title='Read about this "document.write()" reference in the full HTML5 spec.'>document.write()</a></code> method,
                    493:   <code><a href="#the-script-element" id="script_18">script</a></code> elements execute (typically synchronously), but
                    494:   when inserted using <code title="dom-innerHTML"><a href="apis-in-html-documents.html#dom-innerhtml" id="innerhtml_3">innerHTML</a></code> and <code title="dom-outerHTML"><a href="apis-in-html-documents.html#dom-outerhtml" id="outerhtml_2">outerHTML</a></code> attributes, they do not
                    495:   execute at all.<div class="example">
                    496: 
                    497:    <p>In this example, two <code><a href="#the-script-element" id="script_19">script</a></code> elements are used. One
                    498:    embeds an external script, and the other includes some data.</p>
                    499: 
                    500:    <pre>&lt;script src="game-engine.js"&gt;&lt;/script&gt;
                    501: &lt;script type="text/x-game-map"&gt;
                    502: ........U.........e
                    503: o............A....e
                    504: .....A.....AAA....e
                    505: .A..AAA...AAAAA...e
                    506: &lt;/script&gt;</pre>
                    507: 
                    508:    <p>The data in this case might be used by the script to generate
                    509:    the map of a video game. The data doesn't have to be used that way,
                    510:    though; maybe the map data is actually embedded in other parts of
                    511:    the page's markup, and the data block here is just used by the
                    512:    site's search engine to help users who are looking for particular
                    513:    features in their game maps.</p>
                    514: 
                    515:   </div><div class="example">
                    516: 
                    517:    <p>The following sample shows how a script element can be used to
                    518:    define a function that is then used by other parts of the
                    519:    document. It also shows how a <code><a href="#the-script-element" id="script_20">script</a></code> element can be
                    520:    used to invoke script while the document is being parsed, in this
                    521:    case to initialize the form's output.</p>
                    522: 
                    523:    <pre>&lt;script&gt;
                    524:  function calculate(form) {
                    525:    var price = 52000;
                    526:    if (form.elements.brakes.checked)
                    527:      price += 1000;
                    528:    if (form.elements.radio.checked)
                    529:      price += 2500;
                    530:    if (form.elements.turbo.checked)
                    531:      price += 5000;
                    532:    if (form.elements.sticker.checked)
                    533:      price += 250;
                    534:    form.elements.result.value = price;
                    535:  }
                    536: &lt;/script&gt;
                    537: &lt;form name="pricecalc" onsubmit="return false" onchange="calculate(this)"&gt;
                    538:  &lt;fieldset&gt;
                    539:   &lt;legend&gt;Work out the price of your car&lt;/legend&gt;
                    540:   &lt;p&gt;Base cost: &pound;52000.&lt;/p&gt;
                    541:   &lt;p&gt;Select additional options:&lt;/p&gt;
                    542:   &lt;ul&gt;
                    543:    &lt;li&gt;&lt;label&gt;&lt;input type=checkbox name=brakes&gt; Ceramic brakes (&pound;1000)&lt;/label&gt;&lt;/li&gt;
                    544:    &lt;li&gt;&lt;label&gt;&lt;input type=checkbox name=radio&gt; Satellite radio (&pound;2500)&lt;/label&gt;&lt;/li&gt;
                    545:    &lt;li&gt;&lt;label&gt;&lt;input type=checkbox name=turbo&gt; Turbo charger (&pound;5000)&lt;/label&gt;&lt;/li&gt;
                    546:    &lt;li&gt;&lt;label&gt;&lt;input type=checkbox name=sticker&gt; "XZ" sticker (&pound;250)&lt;/label&gt;&lt;/li&gt;
                    547:   &lt;/ul&gt;
                    548:   &lt;p&gt;Total: &pound;&lt;output name=result&gt;&lt;/output&gt;&lt;/p&gt;
                    549:  &lt;/fieldset&gt;
                    550:  &lt;script&gt;
                    551:   calculate(document.forms.pricecalc);
                    552:  &lt;/script&gt;
                    553: &lt;/form&gt;</pre>
                    554: 
                    555:   </div><h5 id="scriptingLanguages"><span class="secno">4.3.1.1 </span>Scripting languages</h5><p>The following lists some <a href="infrastructure.html#mime-type" id="mime-type_4">MIME type</a> strings and the
                    556:   languages to which they refer:<dl><dt>"<code>application/ecmascript</code>"</dt>
                    557:    <dt>"<code>application/javascript</code>"</dt>
                    558:    <dt>"<code>application/x-ecmascript</code>"</dt>
                    559:    <dt>"<code>application/x-javascript</code>"</dt>
                    560:    <dt>"<code>text/ecmascript</code>"</dt>
                    561:    <dt>"<code>text/javascript</code>"</dt>
                    562:    <dt>"<code>text/javascript1.0</code>"</dt>
                    563:    <dt>"<code>text/javascript1.1</code>"</dt>
                    564:    <dt>"<code>text/javascript1.2</code>"</dt>
                    565:    <dt>"<code>text/javascript1.3</code>"</dt>
                    566:    <dt>"<code>text/javascript1.4</code>"</dt>
                    567:    <dt>"<code>text/javascript1.5</code>"</dt>
                    568:    <dt>"<code>text/jscript</code>"</dt>
                    569:    <dt>"<code>text/livescript</code>"</dt>
                    570:    <dt>"<code>text/x-ecmascript</code>"</dt>
                    571:    <dt>"<code>text/x-javascript</code>"</dt>
                    572:    <dd>JavaScript. <a href="references.html#refsECMA262">[ECMA262]</a></dd>
                    573: 
                    574:    <dt>"<code>text/javascript;e4x=1</code>"</dt>
                    575:    <dd>JavaScript with ECMAScript for XML. <a href="references.html#refsECMA357">[ECMA357]</a></dd>
                    576: 
                    577:   </dl><h5 id="restrictions-for-contents-of-script-elements"><span class="secno">4.3.1.2 </span><dfn aria-haspopup="true" role="button" tabindex="0">Restrictions for contents of <code>script</code> elements</dfn></h5><p>The <code><a class="full-spec-link" href="http://dev.w3.org/html5/spec/infrastructure.html#textcontent" title='Read about this "textContent" reference in the full HTML5 spec.'>textContent</a></code> of a <code><a href="#the-script-element" id="script_21">script</a></code> element
                    578:   must match the <code title="">script</code> production in the
                    579:   following ABNF, the character set for which is Unicode. <a href="references.html#refsABNF">[ABNF]</a><pre>script        = data1 *( escape [ script-start data3 ] "--&gt;" data1 ) [ escape ]
                    580: escape        = "&lt;!--" data2 *( script-start data3 script-end data2 )
                    581: 
                    582: data1         = &lt;any string that doesn't contain a substring that matches not-data1&gt;
                    583: not-data1     = "&lt;!--"             
                    584: 
                    585: data2         = &lt;any string that doesn't contain a substring that matches not-data2&gt;
                    586: not-data2     = script-start / "--&gt;"  
                    587: 
                    588: data3         = &lt;any string that doesn't contain a substring that matches not-data3&gt;
                    589: not-data3     = script-end / "--&gt;"
                    590: 
                    591: script-start  = lt       s c r i p t tag-end
                    592: script-end    = lt slash s c r i p t tag-end
                    593: 
                    594: lt            =  %x003C ; U+003C LESS-THAN SIGN character (&lt;)
                    595: slash         =  %x002F ; U+002F SOLIDUS character (/)
                    596: 
                    597: s             =  %x0053 ; U+0053 LATIN CAPITAL LETTER S
                    598: s             =/ %x0073 ; U+0073 LATIN SMALL LETTER S
                    599: c             =  %x0043 ; U+0043 LATIN CAPITAL LETTER C
                    600: c             =/ %x0063 ; U+0063 LATIN SMALL LETTER C
                    601: r             =  %x0052 ; U+0052 LATIN CAPITAL LETTER R
                    602: r             =/ %x0072 ; U+0072 LATIN SMALL LETTER R
                    603: i             =  %x0049 ; U+0049 LATIN CAPITAL LETTER I
                    604: i             =/ %x0069 ; U+0069 LATIN SMALL LETTER I
                    605: p             =  %x0050 ; U+0050 LATIN CAPITAL LETTER P
                    606: p             =/ %x0070 ; U+0070 LATIN SMALL LETTER P
                    607: t             =  %x0054 ; U+0054 LATIN CAPITAL LETTER T
                    608: t             =/ %x0074 ; U+0074 LATIN SMALL LETTER T
                    609: 
1.3       mike      610: tag-end       =  %x0009 ; U+0009 CHARACTER TABULATION (tab)
1.1       mike      611: tag-end       =/ %x000A ; U+000A LINE FEED (LF)
                    612: tag-end       =/ %x000C ; U+000C FORM FEED (FF)
                    613: tag-end       =/ %x0020 ; U+0020 SPACE
                    614: tag-end       =/ %x002F ; U+002F SOLIDUS (/)
                    615: tag-end       =/ %x003E ; U+003E GREATER-THAN SIGN (&gt;)</pre><p>When a <code><a href="#the-script-element" id="script_22">script</a></code> element contains <a href="#inline-documentation-for-external-scripts" id="script-documentation_0">script
                    616:   documentation</a>, there are further restrictions on the contents
                    617:   of the element, as described in the section below.<h5 id="inline-documentation-for-external-scripts"><span class="secno">4.3.1.3 </span><dfn aria-haspopup="true" role="button" tabindex="0">Inline documentation for external scripts</dfn></h5><p>If a <code><a href="#the-script-element" id="script_23">script</a></code> element's <code title="attr-script-src"><a href="#attr-script-src" id="src_9">src</a></code> attribute is specified, then the
                    618:   contents of the <code><a href="#the-script-element" id="script_24">script</a></code> element, if any, must be such
                    619:   that the value of the <code title="dom-script-text"><a class="full-spec-link" href="http://dev.w3.org/html5/spec/scripting-1.html#dom-script-text" title='Read about this "text" reference in the full HTML5 spec.'>text</a></code> IDL
                    620:   attribute, which is derived from the element's contents, matches the
                    621:   <code title="">documentation</code> production in the following
                    622:   ABNF, the character set for which is Unicode. <a href="references.html#refsABNF">[ABNF]</a><pre>documentation = *( *( space / tab / comment ) [ line-comment ] newline )
                    623: comment       = slash star *( not-star / star not-slash ) 1*star slash
                    624: line-comment  = slash slash *not-newline
                    625: 
                    626: ; characters
1.3       mike      627: tab           = %x0009 ; U+0009 CHARACTER TABULATION (tab)
1.1       mike      628: newline       = %x000A ; U+000A LINE FEED (LF)
                    629: space         = %x0020 ; U+0020 SPACE
                    630: star          = %x002A ; U+002A ASTERISK (*)
                    631: slash         = %x002F ; U+002F SOLIDUS (/)
                    632: not-newline   = %x0000-0009 / %x000B-10FFFF
                    633:                 ; a Unicode character other than U+000A LINE FEED (LF)
                    634: not-star      = %x0000-0029 / %x002B-10FFFF
                    635:                 ; a Unicode character other than U+002A ASTERISK (*)
                    636: not-slash     = %x0000-002E / %x0030-10FFFF
                    637:                 ; a Unicode character other than U+002F SOLIDUS (/)</pre><p class="note">This corresponds to putting the contents of the
                    638:   element in JavaScript comments.<p class="note">This requirement is in addition to the earlier
                    639:   restrictions on the syntax of contents of <code><a href="#the-script-element" id="script_25">script</a></code>
                    640:   elements.<div class="example">
                    641: 
                    642:    <p>This allows authors to include documentation, such as license
                    643:    information or API information, inside their documents while still
                    644:    referring to external script files. The syntax is constrained so
                    645:    that authors don't accidentally include what looks like valid
                    646:    script while also providing a <code title="attr-script-src"><a href="#attr-script-src" id="src_10">src</a></code> attribute.</p>
                    647: 
                    648:    <pre>&lt;script src="cool-effects.js"&gt;
                    649:  // create new instances using:
                    650:  //    var e = new Effect();
                    651:  // start the effect using .play, stop using .stop:
                    652:  //    e.play();
                    653:  //    e.stop();
                    654: &lt;/script&gt;</pre>
                    655: 
                    656:   </div>

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