[agiow] (0) Be consistent with getElementById('').

Fixing http://www.w3.org/Bugs/Public/show_bug.cgi?id=10749

git-svn-id: http://svn.whatwg.org/webapps@5576 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -28093,7 +28093,7 @@ <h6 id=timed-track-api><span class=secno>4.8.10.10.5 </span>Timed track API</h6>
    <dt><var title="">cuelist</var> . <code title=dom-TimedTrackCueList-getCueById><a href=#dom-timedtrackcuelist-getcuebyid>getCueById</a></code>( <var title="">id</var> )</dt>
    <dd>
     <p>Returns the first <a href=#timed-track-cue>timed track cue</a> (in <a href=#timed-track-cue-order>timed track cue order</a>) with <a href=#timed-track-cue-identifier>timed track cue identifier</a> <var title="">id</var>.</p>
-    <p>Returns null if none of the cues have the given identifier.</p>
+    <p>Returns null if none of the cues have the given identifier or if the argument is the empty string.</p>
    </dd>
 
   </dl><div class=impl>
@@ -28120,11 +28120,13 @@ <h6 id=timed-track-api><span class=secno>4.8.10.10.5 </span>Timed track API</h6>
   the <var title="">index</var>th <a href=#timed-track-cue>timed track cue</a> in the
   list represented by the <code><a href=#timedtrackcuelist>TimedTrackCueList</a></code> object.</p>
 
-  <p>The <dfn id=dom-timedtrackcuelist-getcuebyid title=dom-TimedTrackCueList-getCueById><code>getCueById(<var title="">id</var>)</code></dfn> method must return the first
-  <a href=#timed-track-cue>timed track cue</a> in the list represented by the
+  <p>The <dfn id=dom-timedtrackcuelist-getcuebyid title=dom-TimedTrackCueList-getCueById><code>getCueById(<var title="">id</var>)</code></dfn> method, when called with an argument
+  other than the empty string, must return the first <a href=#timed-track-cue>timed track
+  cue</a> in the list represented by the
   <code><a href=#timedtrackcuelist>TimedTrackCueList</a></code> object whose <a href=#timed-track-cue-identifier>timed track cue
   identifier</a> is <var title="">id</var>, if any, or null
-  otherwise.</p>
+  otherwise. If the argument is the empty string, then the method must
+  return null.</p>
 
   </div>
 

index

@@ -28073,7 +28073,7 @@ window.onbeforeunload = function () {
    <dt><var title="">cuelist</var> . <code title=dom-TimedTrackCueList-getCueById><a href=#dom-timedtrackcuelist-getcuebyid>getCueById</a></code>( <var title="">id</var> )</dt>
    <dd>
     <p>Returns the first <a href=#timed-track-cue>timed track cue</a> (in <a href=#timed-track-cue-order>timed track cue order</a>) with <a href=#timed-track-cue-identifier>timed track cue identifier</a> <var title="">id</var>.</p>
-    <p>Returns null if none of the cues have the given identifier.</p>
+    <p>Returns null if none of the cues have the given identifier or if the argument is the empty string.</p>
    </dd>
 
   </dl><div class=impl>
@@ -28100,11 +28100,13 @@ window.onbeforeunload = function () {
   the <var title="">index</var>th <a href=#timed-track-cue>timed track cue</a> in the
   list represented by the <code><a href=#timedtrackcuelist>TimedTrackCueList</a></code> object.</p>
 
-  <p>The <dfn id=dom-timedtrackcuelist-getcuebyid title=dom-TimedTrackCueList-getCueById><code>getCueById(<var title="">id</var>)</code></dfn> method must return the first
-  <a href=#timed-track-cue>timed track cue</a> in the list represented by the
+  <p>The <dfn id=dom-timedtrackcuelist-getcuebyid title=dom-TimedTrackCueList-getCueById><code>getCueById(<var title="">id</var>)</code></dfn> method, when called with an argument
+  other than the empty string, must return the first <a href=#timed-track-cue>timed track
+  cue</a> in the list represented by the
   <code><a href=#timedtrackcuelist>TimedTrackCueList</a></code> object whose <a href=#timed-track-cue-identifier>timed track cue
   identifier</a> is <var title="">id</var>, if any, or null
-  otherwise.</p>
+  otherwise. If the argument is the empty string, then the method must
+  return null.</p>
 
   </div>
 

source

@@ -30549,7 +30549,7 @@ window.onbeforeunload = function () {
    <dt><var title="">cuelist</var> . <code title="dom-TimedTrackCueList-getCueById">getCueById</code>( <var title="">id</var> )</dt>
    <dd>
     <p>Returns the first <span>timed track cue</span> (in <span>timed track cue order</span>) with <span>timed track cue identifier</span> <var title="">id</var>.</p>
-    <p>Returns null if none of the cues have the given identifier.</p>
+    <p>Returns null if none of the cues have the given identifier or if the argument is the empty string.</p>
    </dd>
 
   </dl>
@@ -30581,11 +30581,13 @@ window.onbeforeunload = function () {
 
   <p>The <dfn
   title="dom-TimedTrackCueList-getCueById"><code>getCueById(<var
-  title="">id</var>)</code></dfn> method must return the first
-  <span>timed track cue</span> in the list represented by the
+  title="">id</var>)</code></dfn> method, when called with an argument
+  other than the empty string, must return the first <span>timed track
+  cue</span> in the list represented by the
   <code>TimedTrackCueList</code> object whose <span>timed track cue
   identifier</span> is <var title="">id</var>, if any, or null
-  otherwise.</p>
+  otherwise. If the argument is the empty string, then the method must
+  return null.</p>
 
   </div>