
        <div class="alert alert-warning alert-dismissable">
            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
            ${model.errorMessage}
        </div>
        <% } %>
        <form class="form-inline" role="form" method="post" action="/messages">
            <div class="form-group ${ model.errorMessage ? 'has-error': '' }">
                <label class="sr-only" for="messageContents">内容</label>

                <div class="col-sm-10">
     