<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div id="signupbox" style="margin-top:50px" class="mainbox col-md-6 col-md-offset-3 col-sm-8 col-sm-offset-2">
<div class="panel panel-info">
<div class="panel-heading">
<div class="panel-title">Sign Up</div>
<div style="float:right; font-size: 85%; position: relative; top:-10px"><a id="signinlink" href="#" onclick="$('#signupbox').hide(); $('#loginbox').show()">Sign In</a></div>
</div>
<div class="panel-body" align="center">
<h3>Registration is closed for the moment</h3>
</div>
</div>
</div>
</div>
