<div class="input-group">
<input type="text" class="form-control" placeholder="Search …" name="q">
<span class="input-group-btn">
- <button class="btn btn-default" type="button"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
+ <button class="btn btn-default" type="submit"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
</span>
</div>
<input type="hidden" name="sites" value="manual.ardour.org"><!-- domain -->