[ac] (1) Make id='' required on <map>. Let me know if that's a problem.

git-svn-id: http://svn.whatwg.org/webapps@987 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

@@ -16520,7 +16520,8 @@ notes on what would need to be defined for dashed lines:
 
    <dt>Element-specific attributes:
 
-   <dd>None.
+   <dd>None, but the <code title=attr-id><a href="#id">id</a></code>
+    attribute is required.
 
    <dt>DOM interface:
 
@@ -16536,6 +16537,9 @@ notes on what would need to be defined for dashed lines:
    <code><a href="#area">area</a></code> element descendants, defines an <a
    href="#image">image map</a>.
 
+  <p>There must always be an <code title=attr-id><a href="#id">id</a></code>
+   attribute present on <code><a href="#map">map</a></code> elements.
+
   <p>The <dfn id=areas title=dom-map-areas><code>areas</code></dfn> attribute
    must return an <code><a href="#htmlcollection0">HTMLCollection</a></code>
    rooted at the <code><a href="#map">map</a></code> element, whose filter

source

@@ -14210,7 +14210,7 @@ notes on what would need to be defined for dashed lines:
    <dt>Content model:</dt>
    <dd>Zero or more <span>block-level elements</span>.</dd>
    <dt>Element-specific attributes:</dt>
-   <dd>None.</dd>
+   <dd>None, but the <code title="attr-id">id</code> attribute is required.</dd>
    <dt>DOM interface:</dt>
    <dd>
 <pre class="idl">interface <dfn>HTMLMapElement</dfn> : <span>HTMLElement</span> {
@@ -14224,6 +14224,9 @@ notes on what would need to be defined for dashed lines:
   <code>area</code> element descendants, defines an <span>image
   map</span>.</p>
 
+  <p>There must always be an <code title="attr-id">id</code> attribute
+  present on <code>map</code> elements.</p>
+
   <p>The <dfn title="dom-map-areas"><code>areas</code></dfn> attribute
   must return an <code>HTMLCollection</code> rooted at the
   <code>map</code> element, whose filter matches only