client/app/pods/components/join-group-modal/template.hbs
{{#modal-dialog title="Join group" proceedButton="OK" cancel="closeModal" submit="joinGroup"}}
<span class="error-text">{{errorMsg}}</span>
<form role="form">
<div class="form-group">
<label>Type the name of the group you wish to join</label>
{{input class="form-control" elementId="join_group_name" value=group}}
</div>
<div class="form-group">
<label>Password, if needed</label>
{{input class="form-control" elementId="join_group_password" value=password}}
</div>
</form>
{{/modal-dialog}}