<button type="button" id="join-<?php echo $wo['join']['id']?>" onclick="Wo_RegisterGroupJoin(<?php echo $wo['join']['id'];?>)" class="btn btn-default btn-sm">
<i class="fa fa-clock-o progress-icon" data-icon="clock-o"></i>
<span class="button-text"> <?php echo $wo['lang']['requested'];?></span>
</button>