html5/spec Overview.html,1.1854,1.1855

Update of /sources/public/html5/spec
In directory hutz:/tmp/cvs-serv30853

Modified Files:
	Overview.html 
Log Message:
Define how the Window-magic event handler attributes like window.onload work. Tighten up the text around event handler attributes. (whatwg r2685)

Index: Overview.html
===================================================================
RCS file: /sources/public/html5/spec/Overview.html,v
retrieving revision 1.1854
retrieving revision 1.1855
diff -u -d -r1.1854 -r1.1855
--- Overview.html	21 Jan 2009 09:09:26 -0000	1.1854
+++ Overview.html	21 Jan 2009 11:08:09 -0000	1.1855
@@ -5481,7 +5481,6 @@
 
   // <a href=#event-handler-dom-attributes>event handler DOM attributes</a>
            attribute <a href=#function>Function</a> <a href=#handler-onabort title=handler-onabort>onabort</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onbeforeunload title=handler-onbeforeunload>onbeforeunload</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onblur title=handler-onblur>onblur</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onchange title=handler-onchange>onchange</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onclick title=handler-onclick>onclick</a>;
@@ -5494,9 +5493,8 @@
            attribute <a href=#function>Function</a> <a href=#handler-ondragover title=handler-ondragover>ondragover</a>;
            attribute <a href=#function>Function</a> <a href=#handler-ondragstart title=handler-ondragstart>ondragstart</a>;
            attribute <a href=#function>Function</a> <a href=#handler-ondrop title=handler-ondrop>ondrop</a>;
-           attribute any <a href=#handler-onerror title=handler-onerror>onerror</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-onerror title=handler-onerror>onerror</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onfocus title=handler-onfocus>onfocus</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onhashchange title=handler-onhashchange>onhashchange</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeydown title=handler-onkeydown>onkeydown</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeypress title=handler-onkeypress>onkeypress</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeyup title=handler-onkeyup>onkeyup</a>;
@@ -5508,13 +5506,9 @@
            attribute <a href=#function>Function</a> <a href=#handler-onmouseover title=handler-onmouseover>onmouseover</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmouseup title=handler-onmouseup>onmouseup</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmousewheel title=handler-onmousewheel>onmousewheel</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onresize title=handler-onresize>onresize</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onscroll title=handler-onscroll>onscroll</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onselect title=handler-onselect>onselect</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onstorage title=handler-onstorage>onstorage</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onsubmit title=handler-onsubmit>onsubmit</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onunload title=handler-onunload>onunload</a>;
-
 };</pre><p>The <code><a href=#htmlelement>HTMLElement</a></code> interface holds methods and
   attributes related to a number of disparate features, and the
   members of this interface are therefore described in various
@@ -5532,11 +5526,10 @@
    <dd><code title=attr-style><a href=#the-style-attribute>style</a></code></dd>
    <dd><code title=attr-tabindex><a href=#attr-tabindex>tabindex</a></code></dd>
    <dd><code title=attr-title><a href=#the-title-attribute>title</a></code></dd>
-  </dl><p>In addition, the following <a href=#event-handler-content-attributes>event handler content
-  attributes</a> may be specified on any <a href=#html-elements title="HTML
-  elements">HTML element</a>:<dl class=element><dt>Event handler content attributes:</dt>
+  </dl><p>In addition, unless otherwise specified, the following
+  <a href=#event-handler-content-attributes>event handler content attributes</a> may be specified on
+  any <a href=#html-elements title="HTML elements">HTML element</a>:<dl class=element><dt>Event handler content attributes:</dt>
    <dd><code title=handler-onabort><a href=#handler-onabort>onabort</a></code></dd>
-   <dd><code title=handler-onbeforeunload><a href=#handler-onbeforeunload>onbeforeunload</a></code></dd>
    <dd><code title=handler-onblur><a href=#handler-onblur>onblur</a></code></dd>
    <dd><code title=handler-onchange><a href=#handler-onchange>onchange</a></code></dd>
    <dd><code title=handler-onclick><a href=#handler-onclick>onclick</a></code></dd>
@@ -5549,27 +5542,26 @@
    <dd><code title=handler-ondragover><a href=#handler-ondragover>ondragover</a></code></dd>
    <dd><code title=handler-ondragstart><a href=#handler-ondragstart>ondragstart</a></code></dd>
    <dd><code title=handler-ondrop><a href=#handler-ondrop>ondrop</a></code></dd>
-   <dd><code title=handler-onerror><a href=#handler-onerror>onerror</a></code></dd>
+   <dd><code title=handler-onerror><a href=#handler-onerror>onerror</a></code>*</dd>
    <dd><code title=handler-onfocus><a href=#handler-onfocus>onfocus</a></code></dd>
-   <dd><code title=handler-onhashchange><a href=#handler-onhashchange>onhashchange</a></code></dd>
    <dd><code title=handler-onkeydown><a href=#handler-onkeydown>onkeydown</a></code></dd>
    <dd><code title=handler-onkeypress><a href=#handler-onkeypress>onkeypress</a></code></dd>
    <dd><code title=handler-onkeyup><a href=#handler-onkeyup>onkeyup</a></code></dd>
    <dd><code title=handler-onload><a href=#handler-onload>onload</a></code></dd>
-   <dd><code title=handler-onmessage><a href=#handler-onmessage>onmessage</a></code></dd>
+   <dd><code title=handler-onmessage><a href=#handler-onmessage>onmessage</a></code>*</dd>
    <dd><code title=handler-onmousedown><a href=#handler-onmousedown>onmousedown</a></code></dd>
    <dd><code title=handler-onmousemove><a href=#handler-onmousemove>onmousemove</a></code></dd>
    <dd><code title=handler-onmouseout><a href=#handler-onmouseout>onmouseout</a></code></dd>
    <dd><code title=handler-onmouseover><a href=#handler-onmouseover>onmouseover</a></code></dd>
    <dd><code title=handler-onmouseup><a href=#handler-onmouseup>onmouseup</a></code></dd>
    <dd><code title=handler-onmousewheel><a href=#handler-onmousewheel>onmousewheel</a></code></dd>
-   <dd><code title=handler-onresize><a href=#handler-onresize>onresize</a></code></dd>
    <dd><code title=handler-onscroll><a href=#handler-onscroll>onscroll</a></code></dd>
    <dd><code title=handler-onselect><a href=#handler-onselect>onselect</a></code></dd>
-   <dd><code title=handler-onstorage><a href=#handler-onstorage>onstorage</a></code></dd>
    <dd><code title=handler-onsubmit><a href=#handler-onsubmit>onsubmit</a></code></dd>
-   <dd><code title=handler-onunload><a href=#handler-onunload>onunload</a></code></dd>
-  </dl><p>Also, <a href=#custom-data-attribute title="custom data attribute">custom data
+  </dl><p class=note>The two attributes marked with an asterisk, <code title=handler-onerror><a href=#handler-onerror>onerror</a></code> and <code title=handler-onmessage><a href=#handler-onmessage>onmessage</a></code>, cannot be specified on
+  <code><a href=#the-body-element>body</a></code> elements as those elements expose <a href=#event-handler-attributes-0>event
+  handler attributes</a> of the <code><a href=#window>Window</a></code> object with the
+  same names.</p><hr><p>Also, <a href=#custom-data-attribute title="custom data attribute">custom data
   attributes</a> (e.g. <code title="">data-foldername</code> or
   <code title="">data-msgid</code>) can be specified on any <a href=#html-elements title="HTML elements">HTML element</a>, to store custom data
   specific to the page.<p>In <a href=#html-documents>HTML documents</a>, elements in the <a href=#html-namespace-0>HTML
@@ -8594,10 +8586,30 @@
    <dt>Content model:</dt>
    <dd><a href=#flow-content-0>Flow content</a>.</dd>
    <dt>Element-specific attributes:</dt>
-   <dd>None.</dd>
+   <dd><code title=handler-window-onbeforeunload><a href=#handler-window-onbeforeunload>onbeforeunload</a></code></dd>
+   <dd><code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code></dd>
+   <dd><code title=handler-window-onhashchange><a href=#handler-window-onhashchange>onhashchange</a></code></dd>
+   <dd><code title=handler-window-onload><a href=#handler-window-onload>onload</a></code></dd>
+   <dd><code title=handler-window-onmessage><a href=#handler-window-onmessage>onmessage</a></code></dd>
+   <dd><code title=handler-window-ononline><a href=#handler-window-ononline>ononline</a></code></dd>
+   <dd><code title=handler-window-onoffline><a href=#handler-window-onoffline>onoffline</a></code></dd>
+   <dd><code title=handler-window-onresize><a href=#handler-window-onresize>onresize</a></code></dd>
+   <dd><code title=handler-window-onstorage><a href=#handler-window-onstorage>onstorage</a></code></dd>
+   <dd><code title=handler-window-onunload><a href=#handler-window-onunload>onunload</a></code></dd>
    <dt>DOM interface:</dt>
    <dd>
-<pre class=idl>interface <dfn id=htmlbodyelement>HTMLBodyElement</dfn> : <a href=#htmlelement>HTMLElement</a> {};</pre>
+<pre class=idl>interface <dfn id=htmlbodyelement>HTMLBodyElement</dfn> : <a href=#htmlelement>HTMLElement</a> {
+           attribute <a href=#function>Function</a> <a href=#handler-window-onbeforeunload title=handler-window-onbeforeunload>onbeforeunload</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onhashchange title=handler-window-onhashchange>onhashchange</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onload title=handler-window-onload>onload</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onmessage title=handler-window-onmessage>onmessage</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-ononline title=handler-window-ononline>ononline</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onoffline title=handler-window-onoffline>onoffline</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onresize title=handler-window-onresize>onresize</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onstorage title=handler-window-onstorage>onstorage</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onunload title=handler-window-onunload>onunload</a>;
+};</pre>
 </dd>
   </dl><p>The <code><a href=#the-body-element>body</a></code> element represents the main content of the
   document.<p>In conforming documents, there is only one <code><a href=#the-body-element>body</a></code>
@@ -8607,7 +8619,20 @@
   <a href=#dnd>drag and drop</a> model) are defined in terms of "<a href=#the-body-element-1>the
   body element</a>". This refers to a particular element in the
   DOM, as per the definition of the term, and not any arbitrary
-  <code><a href=#the-body-element>body</a></code> element.<h4 id=the-section-element><span class=secno>4.4.2 </span>The <dfn><code>section</code></dfn> element</h4><dl class=element><dt>Categories</dt>
+  <code><a href=#the-body-element>body</a></code> element.<p>The <code><a href=#the-body-element>body</a></code> element exposes as <a href=#event-handler-content-attributes>event handler
+  content attributes</a> a number of the <a href=#event-handler-attributes-0>event handler
+  attributes</a> of the <code><a href=#window>Window</a></code> object. It also mirrors
+  their <a href=#event-handler-dom-attributes>event handler DOM attributes</a>.<p>The <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> and <code title=handler-window-onmessage><a href=#handler-window-onmessage>onmessage</a></code> <a href=#event-handler-attributes-0>event
+  handler attributes</a> of the <code><a href=#window>Window</a></code> object, exposed
+  on the <code><a href=#the-body-element>body</a></code> element, shadow the generic <code title=handler-onerror><a href=#handler-onerror>onerror</a></code> and <code title=handler-onmessage><a href=#handler-onmessage>onmessage</a></code> <a href=#event-handler-attributes-0>event handler
+  attributes</a> normally supported by <a href=#html-elements>HTML
+  elements</a>.<p class=example>Thus, for example, a bubbling <code title=event-message><a href=#event-message>message</a></code> event fired on a child of
+  <a href=#the-body-element-1>the <code>body</code> element</a> of a
+  <code>Document</code> would trigger the <code title=handler-onmessage><a href=#handler-onmessage>onmessage</a></code> <a href=#event-handler-content-attributes>event handler
+  content attributes</a> of that element and of the root
+  <code><a href=#the-html-element>html</a></code> element, but would not trigger the <code title=handler-window-onmessage><a href=#handler-window-onmessage>onmessage</a></code> <a href=#event-handler-content-attributes title="event
+  handler content attributes">event handler content attribute</a>
+  on the <code><a href=#the-body-element>body</a></code> element.<h4 id=the-section-element><span class=secno>4.4.2 </span>The <dfn><code>section</code></dfn> element</h4><dl class=element><dt>Categories</dt>
    <dd><a href=#flow-content-0>Flow content</a>.</dd>
    <dd><a href=#sectioning-content-0>Sectioning content</a>.</dd>
    <dt>Contexts in which this element may be used:</dt>
@@ -27260,7 +27285,7 @@
 
   // <a href=#event-handler-dom-attributes>event handler DOM attributes</a>
            attribute <a href=#function>Function</a> <a href=#handler-onabort title=handler-onabort>onabort</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onbeforeunload title=handler-onbeforeunload>onbeforeunload</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onbeforeunload title=handler-window-onbeforeunload>onbeforeunload</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onblur title=handler-onblur>onblur</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onchange title=handler-onchange>onchange</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onclick title=handler-onclick>onclick</a>;
@@ -27273,26 +27298,26 @@
            attribute <a href=#function>Function</a> <a href=#handler-ondragover title=handler-ondragover>ondragover</a>;
            attribute <a href=#function>Function</a> <a href=#handler-ondragstart title=handler-ondragstart>ondragstart</a>;
            attribute <a href=#function>Function</a> <a href=#handler-ondrop title=handler-ondrop>ondrop</a>;
-           attribute any <a href=#handler-onerror title=handler-onerror>onerror</a>;
+           attribute any     <!--      --> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onfocus title=handler-onfocus>onfocus</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onhashchange title=handler-onhashchange>onhashchange</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onhashchange title=handler-window-onhashchange>onhashchange</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeydown title=handler-onkeydown>onkeydown</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeypress title=handler-onkeypress>onkeypress</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onkeyup title=handler-onkeyup>onkeyup</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onload title=handler-onload>onload</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onmessage title=handler-onmessage>onmessage</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onload title=handler-window-onload>onload</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onmessage title=handler-window-onmessage>onmessage</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmousedown title=handler-onmousedown>onmousedown</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmousemove title=handler-onmousemove>onmousemove</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmouseout title=handler-onmouseout>onmouseout</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmouseover title=handler-onmouseover>onmouseover</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmouseup title=handler-onmouseup>onmouseup</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onmousewheel title=handler-onmousewheel>onmousewheel</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onresize title=handler-onresize>onresize</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onresize title=handler-window-onresize>onresize</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onscroll title=handler-onscroll>onscroll</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onselect title=handler-onselect>onselect</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onstorage title=handler-onstorage>onstorage</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onstorage title=handler-window-onstorage>onstorage</a>;
            attribute <a href=#function>Function</a> <a href=#handler-onsubmit title=handler-onsubmit>onsubmit</a>;
-           attribute <a href=#function>Function</a> <a href=#handler-onunload title=handler-onunload>onunload</a>;
+           attribute <a href=#function>Function</a> <a href=#handler-window-onunload title=handler-window-onunload>onunload</a>;
 };</pre><!-- XXX http://msdn.microsoft.com/workshop/author/dhtml/reference/objects/obj_window.asp
           http://www.mozilla.org/docs/dom/domref/dom_window_ref.html
           http://lxr.mozilla.org/mozilla/source/dom/public/idl/base/nsIDOMWindow.idl - scrollBy, etc
@@ -27631,7 +27656,8 @@
      <code><a href=#script>script</a></code> element belongs.</dd>
 
 
-     <dt>If a script is in an <a href=#event-handler-content-attributes title="event handler content attributes">event handler content attribute</a></dt>
+     <dt>If a script is in an <a href=#event-handler-content-attributes title="event handler content
+     attributes">event handler content attribute</a></dt>
 
      <dd>The owner is the <code>Document</code> to which the
      attribute node belongs.</dd>
@@ -28419,19 +28445,25 @@
   </div><p class=note>The rules for <a href=#create-a-script title="create a script">creating
   a script</a> include making the script not execute (and just
   return void) in certain cases, e.g. in a sandbox or when the user
-  has disabled scripting altogether.<h4 id=events><span class=secno>5.4.6 </span>Events</h4><h5 id=event-handler-attributes><span class=secno>5.4.6.1 </span>Event handler attributes</h5><!-- http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E%0A...%3Cscript%3E%0Aw(a%3Ddocument.implementation.createDocument(null%2C%20null%2C%20null))%3B%0Aw(a.appendChild(a.createElementNS('http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml'%2C%20'html')))%3B%0Aw(b%3Da.firstChild.appendChild(a.createElementNS('http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml'%2C%20'body')))%3B%0Aw(b.test%20%3D%20w)%3B%0Aw(b.setAttribute('onclick'%2C%20'test(%22fire%3A%20%22%20%2B%20event)'))%3B%0Aw(b.onclick)%3B%0Aw(e%3Da.createEvent('Event'))%3B%0Aw(e.initEvent('click'%2C%20false%2C%20false))%3B%0Aw(b.dispatchEvent(e))%3B%0A%3C%2Fscript%3E --><p>Many objects can have <dfn id=event-handler-attributes-0>event handler attributes</dfn>
+  has disabled scripting altogether.<h4 id=events><span class=secno>5.4.6 </span>Events</h4><h5 id=event-handler-attributes><span class=secno>5.4.6.1 </span>Event handler attributes</h5><!--test: <a href="http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E%0A...%3Cscript%3E%0Aw(a%3Ddocument.implementation.createDocument(null%2C%20null%2C%20null))%3B%0Aw(a.appendChild(a.createElementNS('http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml'%2C%20'html')))%3B%0Aw(b%3Da.firstChild.appendChild(a.createElementNS('http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml'%2C%20'body')))%3B%0Aw(b.test%20%3D%20w)%3B%0Aw(b.setAttribute('onclick'%2C%20'test(%22fire%3A%20%22%20%2B%20event)'))%3B%0Aw(b.onclick)%3B%0Aw(e%3Da.createEvent('Event'))%3B%0Aw(e.initEvent('click'%2C%20false%2C%20false))%3B%0Aw(b.dispatchEvent(e))%3B%0A%3C%2Fscript%3E">test</a>--><p>Many objects can have <dfn id=event-handler-attributes-0>event handler attributes</dfn>
   specified. These act as bubbling event listeners for the element on
-  which they are specified.<p>On <a href=#html-elements>HTML elements</a>, each event handler attribute has
-  two parts, an <a href=#event-handler-content-attributes title="event handler content attributes">event
-  handler content attribute</a> and an <a href=#event-handler-dom-attributes title="event handler
-  DOM attributes">event handler DOM attribute</a>. Event handler
-  attributes must initially be set to null. When their value changes
-  (through the changing of their event handler content attribute or
-  their event handler DOM attribute), they will either be null, or
-  have a <code><a href=#function>Function</a></code> object assigned to them.<p>Objects other than <code>Element</code> objects, in particular
-  <code><a href=#window>Window</a></code>, only have <a href=#event-handler-dom-attributes title="event handler DOM
-  attributes">event handler DOM attribute</a> (since they have no
-  content attributes).</p><hr><p><dfn id=event-handler-content-attributes>Event handler content attributes</dfn>, when specified, must
+  which they are specified.<p>An <a href=#event-handler-attributes-0 title="event handler attributes">event handler
+  attribute</a>, unless otherwise specified, can either have the
+  value null or be set to a <code><a href=#function>Function</a></code> object. Initially,
+  unless otherwise specified, an event handler attribute must be set
+  to null.<p class=note>Some event handler attributes allow other values and
+  have other initial values, in particular the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> event handler
+  attribute on the <code><a href=#window>Window</a></code> object.<p>Event handler attributes are exposed in one or two ways.<p>The first way, common to all event handler attributes, is as an
+  <a href=#event-handler-dom-attributes title="event handler DOM attributes">event handler DOM
+  attribute</a>.<p>The second way is as as an <a href=#event-handler-content-attributes title="event handler content
+  attributes">event handler content attribute</a>. Event handlers on
+  <a href=#html-elements>HTML elements</a> and some of the event handlers on
+  <code><a href=#window>Window</a></code> objects are exposed in this way.</p><hr><p><dfn id=event-handler-dom-attributes>Event handler DOM attributes</dfn>, on setting, must set the
+  corresponding event handler attribute to their new value, and on
+  getting, must return whatever the current value of the corresponding
+  event handler attribute is (possibly null).<p class=note>Certain event handler DOM attributes have additional
+  requirements, in particular the <code title=handler-MessagePort-onmessage><a href=#handler-messageport-onmessage>onmessage</a></code> attribute of
+  <code><a href=#messageport>MessagePort</a></code> objects.</p><hr><p><dfn id=event-handler-content-attributes>Event handler content attributes</dfn>, when specified, must
   contain valid ECMAScript code matching the ECMAScript <code title="">FunctionBody</code> production. <a href=#references>[ECMA262]</a></p><!-- SCRIPT EXEC --><p>When an event handler content attribute is set, if the element is
   owned by a <code>Document</code> that is in a <a href=#browsing-context>browsing
   context</a>, the user agent must run the following steps to
@@ -28445,7 +28477,8 @@
     attribute's new value as the body of an anonymous function, with
     the function's arguments set as follows:</p>
 
-    <dl class=switch><dt>If the attribute is <code title=handler-onerror><a href=#handler-onerror>onerror</a></code></dt>
+    <dl class=switch><dt>If the attribute is the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> attribute of the
+     <code><a href=#window>Window</a></code> object</dt>
 
      <dd>Let the function have three arguments, named <code title="">event</code>, <code title="">source</code>, and <code title="">fileno</code>.</dd>
 
@@ -28486,10 +28519,7 @@
   element owned by a <code>Document</code> that is not in a
   <a href=#browsing-context>browsing context</a>, the corresponding event handler
   attribute is not changed.<p class=note>Removing an event handler content attribute does not
-  reset the corresponding event handler attribute.</p><!-- http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E%0A...%3Cbody%20onload%3D%22w(%27pass%27)%22%3E%0A%3Cscript%3Edocument.body.removeAttribute(%27onload%27)%3B%3C%2Fscript%3E --><p class=XXX>How do we allow non-JS event handlers?</p><hr><p><dfn id=event-handler-dom-attributes>Event handler DOM attributes</dfn>, on setting, must set the
-  corresponding event handler attribute to their new value, and on
-  getting, must return whatever the current value of the corresponding
-  event handler attribute is (possibly null).</p><hr><p>All event handler attributes on an element, whether set to null
+  reset the corresponding event handler attribute.</p><!-- http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E%0A...%3Cbody%20onload%3D%22w(%27pass%27)%22%3E%0A%3Cscript%3Edocument.body.removeAttribute(%27onload%27)%3B%3C%2Fscript%3E --><p class=XXX>How do we allow non-JS event handlers?</p><hr><p>All event handler attributes on an element, whether set to null
   or to a <code><a href=#function>Function</a></code> object<!-- or to anything else, in the
   case of 'onerror' -->, must be registered as event listeners on the
   element, as if the <code title=dom-EventTarget-addEventListenerNS>addEventListenerNS()</code>
@@ -28538,216 +28568,251 @@
   object implements this interface.<h5 id=event-handler-attributes-on-elements-and-on-window-objects><span class=secno>5.4.6.2 </span>Event handler attributes on elements and on <code><a href=#window>Window</a></code> objects</h5><p>The following are the event handler attributes that must be
   supported by all <a href=#html-elements>HTML elements</a>, as both content
   attributes and DOM attributes, and on <code><a href=#window>Window</a></code> objects,
-  as DOM attributes:<dl><!-- XXX should change 'the element' below to 'the object' or something --><dt><dfn id=handler-onabort title=handler-onabort><code>onabort</code></dfn></dt>
+  as DOM attributes:<dl><dt><dfn id=handler-onabort title=handler-onabort><code>onabort</code></dfn></dt>
 
    <dd><p>Must be invoked whenever an <code title=event-abort><a href=#event-abort>abort</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
 <!--
    <dt><dfn title="handler-onbeforecopy"><code>onbeforecopy</code></dfn></dt> --><!-- widely used --><!--
 
    <dd><p>Must be invoked whenever a <code
    title="event-beforecopy">beforecopy</code> event is targeted at or bubbles
-   through the element.</p></dd>
+   through the element or object.</p></dd>
 -->
 
-   <dt><dfn id=handler-onbeforeunload title=handler-onbeforeunload><code>onbeforeunload</code></dfn></dt>
-
-   <dd><p>Must be invoked whenever a <code title=event-beforeunload>beforeunload</code> event is targeted at or bubbles
-   through the element.</dd>
-
    <dt><dfn id=handler-onblur title=handler-onblur><code>onblur</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-blur>blur</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onchange title=handler-onchange><code>onchange</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-change>change</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onclick title=handler-onclick><code>onclick</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-click>click</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-oncontextmenu title=handler-oncontextmenu><code>oncontextmenu</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-contextmenu>contextmenu</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
 <!--
    <dt><dfn title="handler-oncopy"><code>oncopy</code></dfn></dt> --><!-- widely used --><!--
 
    <dd><p>Must be invoked whenever a <code
    title="event-copy">copy</code> event is targeted at or bubbles
-   through the element.</p></dd>
+   through the element or object.</p></dd>
 -->
 
    <dt><dfn id=handler-ondblclick title=handler-ondblclick><code>ondblclick</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-dblclick>dblclick</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondrag title=handler-ondrag><code>ondrag</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-drag><a href=#event-drag>drag</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondragend title=handler-ondragend><code>ondragend</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-dragend><a href=#event-dragend>dragend</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondragenter title=handler-ondragenter><code>ondragenter</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-dragenter><a href=#event-dragenter>dragenter</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondragleave title=handler-ondragleave><code>ondragleave</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-dragleave><a href=#event-dragleave>dragleave</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondragover title=handler-ondragover><code>ondragover</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-dragover><a href=#event-dragover>dragover</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondragstart title=handler-ondragstart><code>ondragstart</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-dragstart><a href=#event-dragstart>dragstart</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-ondrop title=handler-ondrop><code>ondrop</code></dfn></dt>
 
    <dd><p>Must be invoked whenever a <code title=event-drop><a href=#event-drop>drop</a></code> event is targeted at or bubbles
-   through the element.</dd>
-
-   <dt><dfn id=handler-onerror title=handler-onerror><code>onerror</code></dfn></dt> <!-- widely used -->
-
-   <dd><p>Must be invoked whenever an <code title=event-error><a href=#event-error>error</a></code> event is targeted at or bubbles
-   through the element.</p>
-
-   <p>Unlike other event handler attributes, the <code title=handler-onerror><a href=#handler-onerror>onerror</a></code> event handler attribute can
-   have any value. The initial value of <code title=handler-onerror><a href=#handler-onerror>onerror</a></code> must be
-   <code>undefined</code>.</p>
-
-   <p class=note>The <code title=handler-onerror><a href=#handler-onerror>onerror</a></code>
-   handler is also used for <a href=#runtime-script-errors>reporting
-   script errors</a>.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onfocus title=handler-onfocus><code>onfocus</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-focus>focus</code> event is targeted at or bubbles
-   through the element.</dd>
-
-   <dt><dfn id=handler-onhashchange title=handler-onhashchange><code>onhashchange</code></dfn></dt> <!-- new in html5 -->
-
-   <dd><p>Must be invoked whenever a <code title=event-hashchange>hashchange</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onkeydown title=handler-onkeydown><code>onkeydown</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-keydown>keydown</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onkeypress title=handler-onkeypress><code>onkeypress</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-keypress>keypress</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onkeyup title=handler-onkeyup><code>onkeyup</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-keyup>keyup</code> event is targeted at or bubbles
-   through the element.</dd>
-
-   <dt><dfn id=handler-onload title=handler-onload><code>onload</code></dfn></dt> <!-- widely used -->
-
-   <dd><p>Must be invoked whenever a <code title=event-load><a href=#event-load>load</a></code> event is targeted at or bubbles
-   through the element.</dd>
-
-   <dt><dfn id=handler-onmessage title=handler-onmessage><code>onmessage</code></dfn></dt> <!-- introduced for <eventsource> -->
-
-   <dd><p>Must be invoked whenever a <code title=event-message><a href=#event-message>message</a></code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmousedown title=handler-onmousedown><code>onmousedown</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mousedown>mousedown</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmousemove title=handler-onmousemove><code>onmousemove</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mousemove>mousemove</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmouseout title=handler-onmouseout><code>onmouseout</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mouseout>mouseout</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmouseover title=handler-onmouseover><code>onmouseover</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mouseover>mouseover</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmouseup title=handler-onmouseup><code>onmouseup</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mouseup>mouseup</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
    <dt><dfn id=handler-onmousewheel title=handler-onmousewheel><code>onmousewheel</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-mousewheel>mousewheel</code> event is targeted at or bubbles
-   through the element.</dd>
+   through the element or object.</dd>
 
 <!--
    <dt><dfn title="handler-onpaste"><code>onpaste</code></dfn></dt> --><!-- widely used --><!--
 
    <dd><p>Must be invoked whenever a <code
    title="event-paste">paste</code> event is targeted at or bubbles
-   through the element.</p></dd>
+   through the element or object.</p></dd>
 -->
 
-   <dt><dfn id=handler-onresize title=handler-onresize><code>onresize</code></dfn></dt> <!-- widely used -->
-
-   <dd><p>Must be invoked whenever a <code title=event-resize>resize</code> event is targeted at or bubbles
-   through the element.</dd> <!-- XXX should define when it fires -->
-
    <dt><dfn id=handler-onscroll title=handler-onscroll><code>onscroll</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-scroll>scroll</code> event is targeted at or bubbles
-   through the element.</dd> <!-- XXX should define when it fires -->
+   through the element or object.</dd> <!-- XXX should define when it fires -->
 
    <dt><dfn id=handler-onselect title=handler-onselect><code>onselect</code></dfn></dt> <!-- widely used -->
 
    <dd><p>Must be invoked whenever a <code title=event-select><a href=#event-select>select</a></code> event is targeted at or bubbles
-   through the element.</dd> <!-- XXX should define when it fires -->
+   through the element or object.</dd> <!-- XXX should define when it fires -->
 
 <!--XXX
    <dt><dfn title="handler-onselectstart"><code>onselectstart</code></dfn></dt> --><!-- widely used --><!--
 
    <dd><p>Must be invoked whenever a <code
    title="event-selectstart">selectstart</code> event is targeted at or bubbles
-   through the element.</p></dd>
+   through the element or object.</p></dd>
 --> <!-- XXX should define when it fires -->
 
-   <dt><dfn id=handler-onstorage title=handler-onstorage><code>onstorage</code></dfn></dt> <!-- new -->
+   <dt><dfn id=handler-onsubmit title=handler-onsubmit><code>onsubmit</code></dfn></dt> <!-- widely used -->
 
-   <dd><p>Must be invoked whenever a <code title=event-storage><a href=#event-storage>storage</a></code> event is targeted at or bubbles
+   <dd><p>Must be invoked whenever a <code title=event-submit>submit</code> event is targeted at or bubbles
+   through the element or object.</dd>
+
+  </dl><hr><p>The following are the event handler attributes that must be
+  supported by all <a href=#html-elements>HTML elements</a> other than
+  <code><a href=#the-body-element>body</a></code>, as both content attributes and DOM
+  attributes:<dl><dt><dfn id=handler-onerror title=handler-onerror><code>onerror</code></dfn></dt>
+
+   <dd><p>Must be invoked whenever a <code title=event-error><a href=#event-error>error</a></code> event is targeted at or bubbles
    through the element.</dd>
 
-   <dt><dfn id=handler-onsubmit title=handler-onsubmit><code>onsubmit</code></dfn></dt> <!-- widely used -->
+   <dt><dfn id=handler-onload title=handler-onload><code>onload</code></dfn></dt>
 
-   <dd><p>Must be invoked whenever a <code title=event-submit>submit</code> event is targeted at or bubbles
+   <dd><p>Must be invoked whenever a <code title=event-load><a href=#event-load>load</a></code> event is targeted at or bubbles
    through the element.</dd>
 
-   <dt><dfn id=handler-onunload title=handler-onunload><code>onunload</code></dfn></dt> <!-- widely used -->
+   <dt><dfn id=handler-onmessage title=handler-onmessage><code>onmessage</code></dfn></dt> <!-- new for <eventsource> -->
 
-   <dd><p>Must be invoked whenever an <code title=event-unload>unload</code> event is targeted at or bubbles
+   <dd><p>Must be invoked whenever a <code title=event-message><a href=#event-message>message</a></code> event is targeted at or bubbles
    through the element.</dd>
 
+  </dl><hr><p>The following are the event handler attributes that must be
+  supported by <code><a href=#window>Window</a></code> objects, as DOM attributes on the
+  <code><a href=#window>Window</a></code> object, and with corresponding content
+  attributes and DOM attributes exposed on the <code><a href=#the-body-element>body</a></code>
+  element:<dl><dt><dfn id=handler-window-onbeforeunload title=handler-window-onbeforeunload><code>onbeforeunload</code></dfn></dt>
+
+   <dd><p>Must be invoked whenever a <code title=event-beforeunload>beforeunload</code> event is targeted at or bubbles
+   through the element or object.</dd>
+
+   <dt><dfn id=handler-window-onerror title=handler-window-onerror><code>onerror</code></dfn></dt>
+
+   <dd>
+
+    <p>Must be invoked whenever an <code title=event-error><a href=#event-error>error</a></code> event is targeted at or bubbles
+    through the object.</p>
+
+    <p>Unlike other event handler attributes, the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> event handler attribute can
+    have any value. The initial value of <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> must be
+    <code>undefined</code>.</p>
+
+    <p class=note>The <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code>
+    handler is also used for <a href=#runtime-script-errors>reporting script errors</a>.</p>
+
+   </dd>
+
+   <dt><dfn id=handler-window-onhashchange title=handler-window-onhashchange><code>onhashchange</code></dfn></dt> <!-- new -->
+
+   <dd><p>Must be invoked whenever a <code title=event-hashchange>hashchange</code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-onload title=handler-window-onload><code>onload</code></dfn></dt> <!-- widely used -->
+
+   <dd><p>Must be invoked whenever a <code title=event-load><a href=#event-load>load</a></code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-onmessage title=handler-window-onmessage><code>onmessage</code></dfn></dt> <!-- new for postMessage -->
+
+   <dd><p>Must be invoked whenever a <code title=event-message><a href=#event-message>message</a></code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-onoffline title=handler-window-onoffline><code>onoffline</code></dfn></dt> <!-- new -->
+
+   <dd><p>Must be invoked whenever a <code title=event-offline><a href=#event-offline>offline</a></code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-ononline title=handler-window-ononline><code>ononline</code></dfn></dt> <!-- new -->
+
+   <dd><p>Must be invoked whenever a <code title=event-online><a href=#event-online>online</a></code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-onresize title=handler-window-onresize><code>onresize</code></dfn></dt> <!-- widely used -->
+
+   <dd><p>Must be invoked whenever a <code title=event-resize>resize</code> event is targeted at or bubbles
+   through the object.</dd> <!-- XXX should define when it fires -->
+
+   <dt><dfn id=handler-window-onstorage title=handler-window-onstorage><code>onstorage</code></dfn></dt> <!-- new -->
+
+   <dd><p>Must be invoked whenever a <code title=event-storage><a href=#event-storage>storage</a></code> event is targeted at or bubbles
+   through the object.</dd>
+
+   <dt><dfn id=handler-window-onunload title=handler-window-onunload><code>onunload</code></dfn></dt> <!-- widely used -->
+
+   <dd><p>Must be invoked whenever an <code title=event-unload>unload</code> event is targeted at or bubbles
+   through the object.</dd>
+
   </dl><h5 id=event-firing><span class=secno>5.4.6.3 </span>Event firing</h5><p class=XXX>maybe this should be moved higher up
   (terminology? conformance? DOM?) Also, the whole terminology thing
   should be changed so that we don't define any specific events here,
@@ -28807,15 +28872,15 @@
 
   </ol><h5 id=runtime-script-errors><span class=secno>5.4.6.5 </span>Runtime script errors</h5><p><em>This section only applies to user agents that support
   scripting in general and ECMAScript in particular.</em><p>Whenever a runtime script error occurs in one of the scripts
-  associated with the document, the user agent must <a href=#report-the-error>report the
-  error</a> using the <code title=handler-onerror><a href=#handler-onerror>onerror</a></code>
-  <a href=#event-handler-dom-attributes title="event handler DOM attributes">event handler DOM
-  attribute</a> of the <code><a href=#window>Window</a></code>. If the error is still
-  <i title="">not handled</i> after this, then the error should be
+  associated with a <code>Document</code>, the user agent must
+  <a href=#report-the-error>report the error</a> using the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> <a href=#event-handler-attributes-0 title="event
+  handler attributes">event handler attribute</a> of the
+  <a href=#script-s-global-object>script's global object</a>. If the error is still <i title="">not handled</i> after this, then the error should be
   reported to the user.</p><hr><p>When the user agent is required to <dfn id=report-the-error title="report the
   error">report an error</dfn> <var title="">error</var> using the
-  attribute <var title="">onerror</var>, it must run these steps,
-  after which the error is either <i title="">handled</i> or <i title="">not handled</i>:<dl class=switch><dt>If the value of <var title="">onerror</var> is a
+  event handler attribute <var title="">onerror</var>, it must run
+  these steps, after which the error is either <i title="">handled</i>
+  or <i title="">not handled</i>:<dl class=switch><dt>If the value of <var title="">onerror</var> is a
    <code><a href=#function>Function</a></code></dt>
 
    <dd>
@@ -30891,9 +30956,9 @@
 
    <li><p>Unassociate <var title="">document</var> from <var title="">cache</var> and instead associate it with <var title="">new cache</var>.</li>
 
-  </ol><p>The following are the <a href=#event-handler-dom-attributes>event handler DOM attributes</a>
-  that must be supported by objects implementing the
-  <code><a href=#applicationcache>ApplicationCache</a></code> interface:<dl><dt><dfn id=handler-appcache-onchecking title=handler-appcache-onchecking><code>onchecking</code></dfn></dt>
+  </ol><p>The following are the <a href=#event-handler-attributes-0>event handler attributes</a> that
+  must be supported, as DOM attributes, by all objects implementing
+  the <code><a href=#applicationcache>ApplicationCache</a></code> interface:<dl><dt><dfn id=handler-appcache-onchecking title=handler-appcache-onchecking><code>onchecking</code></dfn></dt>
 
    <dd><p>Must be invoked whenever an <code title=event-checking>checking</code> event is targeted at or
    bubbles through the <code><a href=#applicationcache>ApplicationCache</a></code> object.</dd>
@@ -30954,7 +31019,7 @@
   of the <code><a href=#window>Window</a></code> changes from false to true, the user
   agent must <a href=#fire-a-simple-event>fire a simple event</a> called <dfn id=event-online title=event-online><code>online</code></dfn> at <a href=#the-body-element-1>the body
   element</a>.<p class=note>This attribute is inherently unreliable. A computer
-  can be connected to a network without having Internet access.</p><!-- XXX ononline onoffline need to be defined --><h3 id=history><span class=secno>5.8 </span>Session history and navigation</h3><h4 id=the-session-history-of-browsing-contexts><span class=secno>5.8.1 </span>The session history of browsing contexts</h4><p>The sequence of <code>Document</code>s in a <a href=#browsing-context>browsing
+  can be connected to a network without having Internet access.<h3 id=history><span class=secno>5.8 </span>Session history and navigation</h3><h4 id=the-session-history-of-browsing-contexts><span class=secno>5.8.1 </span>The session history of browsing contexts</h4><p>The sequence of <code>Document</code>s in a <a href=#browsing-context>browsing
   context</a> is its <dfn id=session-history>session history</dfn>.<p><code><a href=#history-1>History</a></code> objects provide a representation of the
   pages in the session history of <a href=#browsing-context title="browsing
   context">browsing contexts</a>. Each browsing context has a
@@ -35967,9 +36032,9 @@
   the server, or by a network error).<p class=note>No information regarding why the connection was
   closed is passed to the application in this version of this
   specification.<p>The <code title=event-message><a href=#event-message>message</a></code> event is fired
-  when when data is received for a connection.</p><hr><p>The following are the <a href=#event-handler-dom-attributes>event handler DOM attributes</a>
-  that must be supported by objects implementing the
-  <code><a href=#websocket>WebSocket</a></code> interface:<dl><dt><dfn id=handler-websocket-onopen title=handler-WebSocket-onopen><code>onopen</code></dfn></dt>
+  when when data is received for a connection.</p><hr><p>The following are the <a href=#event-handler-attributes-0>event handler attributes</a> that
+  must be supported, as DOM attributes, by all objects implementing
+  the <code><a href=#websocket>WebSocket</a></code> interface:<dl><dt><dfn id=handler-websocket-onopen title=handler-WebSocket-onopen><code>onopen</code></dfn></dt>
 
    <dd><p>Must be invoked whenever an <code title=event-WebSocket-open><a href=#event-websocket-open>open</a></code> event is targeted at or
    bubbles through the <code><a href=#websocket>WebSocket</a></code> object.</dd>
@@ -37058,9 +37123,9 @@
   method, when called on a port <var title="">local port</var> that is
   entangled with another port, must cause the user agents to
   unentangle the two ports. If the method is called on a port that is
-  not entangled, then the method must do nothing.</p><hr><p>The following are the <a href=#event-handler-dom-attributes>event handler DOM attributes</a>
-  that must be supported by objects implementing the
-  <code><a href=#messageport>MessagePort</a></code> interface:<dl><dt><dfn id=handler-messageport-onmessage title=handler-MessagePort-onmessage><code>onmessage</code></dfn></dt>
+  not entangled, then the method must do nothing.</p><hr><p>The following are the <a href=#event-handler-attributes-0>event handler attributes</a> that
+  must be supported, as DOM attributes, by all objects implementing
+  the <code><a href=#messageport>MessagePort</a></code> interface:<dl><dt><dfn id=handler-messageport-onmessage title=handler-MessagePort-onmessage><code>onmessage</code></dfn></dt>
 
    <dd>
 

Received on Wednesday, 21 January 2009 11:08:23 UTC