form updated by javascript missing post values
<p>I have a form that I ad an  element to via JavaScript before it is submitted.</p>

<pre><code> parent.document.getElementById('submitcomment' + id).innerHTML = '&lt;img class="image_real" src="/images/site.png" alt="Mostly Dirty," /&gt;
&lt;input class="real" name="freshness" type="text" size="5" maxlength="6" /&gt;
&lt;a href="#" onClick="submitComment('+[id]+'); return false;"&gt;
&lt;img id="submitcommentimg&lt;?php echo $id; ?&gt;" src="images/check.png" alt="Comment!" border="0"&gt;&lt;/a&gt;
&lt;div class="submitcommentalert" id="comment_alert_&lt;?php echo $id; ?&gt;" style="display:none"&gt;Comment Posted!&lt;/div&gt;';
</code></pre>

<p>When the form is submitted it seems to be missing the <code>'freshness' &lt;input&gt; element</code></p>

<p>That is if I try to access <code>$_POST['freshness'];</code> it is empty.</p>
