js移除父级元素

<div class="item-thumbnail">
<a href="play.html?vid=3&pid=3">
<input type="hidden" name="video" value="resource/3.flv" />
<img class="img-responsive" src="resource/images/1.jpg" />
</a>
</div>

<pre name="code" class="html">  <span style="white-space:pre">		</span><div class="item-thumbnail">
<a href="play.html?vid=3&pid=3">
<input type="hidden" name="video" value="resource/3.flv" />
<img class="img-responsive" src="resource/images/1.jpg" />
</a>
</div>

<span style="white-space:pre">		</span><div class="item-thumbnail">
<a href="play.html?vid=3&pid=3">
<input type="hidden" name="video" value="resource/3.flv" />
<img class="img-responsive" src="resource/images/1.jpg" />
</a>
</div>

<script type="text/javascript"> $(function(){$(".item-thumbnail").each(function(){var $a = $(this).find('a').children(); $(this).find('a').remove();$(this).append($a); });});